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Thermal Management

Heat builds up rapidly in enclosed environments,

compromising the performance and life span of
equipment. Like insurance for your electronics, effective
thermal management maximizes the efficiency and life
cycle of electrical components. As a leader in thermal
management, Hoffman offers a wide range of solutions
for heating and cooling enclosures, controlling moisture,
and filtering or moving air through an enclosure.
Whether your enclosure is indoors or out, sealed or
open to airflow, there’s a reliable, proven Hoffman
thermal management solution available.

INDEX
TM-22

Air Conditioner, Side-Mount Mid-Size

TM-18

Air Conditioner, Side-Mount Subcompact

TM-12

Air Conditioners Sizing and Selection

TM-2

Air Conditioners, 3-Phase 460-Volt Side-Mount Full-Size

TM-24

Air Conditioners, CR Compact, Mid-Size and Full-Size

TM-28

Air Conditioners, T4 Line Indoor/Outdoor

TM-5

Air Conditioners, Top-Mount Series

TM-26

Airflow Monitor, Filter and Fan

TM-56

Blower Fan Package; Fan and Blower Accessories

TM-52

Cooling Fan and Exhaust Packages

TM-44

Cooling Fans, Compact

TM-42

Corrosion Inhibitors, Industrial

TM-73

Fan Tray, 19 Inch Rack Mount

TM-60

Fans, Blowers, Louvers, and Vents Sizing and Selection

TM-40

Filter Fan and Exhaust Package, Outdoor

TM-50

Filter Fan Packages

TM-48

Heat Exchangers Sizing and Selection

TM-34

Heat Exchangers, XR Series Compact and Mid-Size

TM-36

Heaters Sizing and Selection

TM-62

Heaters, Electric

TM-66

Heaters, Semiconductor Control Panel

TM-64

Hygrostat, Mechanical

TM-70

Hygrotherm, Electronic

TM-68

Louvers and Vents

TM-54

Shroud Kit, Type 3R Fan

TM-61

Speed Controls, DataCom Fan

TM-58

Temperature Control Switches

TM-72

Thermostat, Dual

TM-71

Vortex Cooling Systems

TM-32

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

Thermal
Management

Air Conditioner, Side-Mount Full-Size

© 2007 Hoffman Enclosures Inc.

TM-1

Air Conditioners
Sizing and Selection

Before choosing a thermal management solution, you

need to carefully consider the specifics of your application in addition to the following factors:

• Fan packages and blowers may introduce ambient
contaminants like oil mist and dust into the enclosure

• Heat exchangers cannot cool below the ambient
temperature

• Closed-loop air conditioners (this section) can cool
below ambient temperature and reduce humidity
without introducing contaminants

• Simple ventilation devices such as louvers or grilles
and filters are appropriate if maintaining a cool,
constant temperature is not a critical factor

Once you have determined the proper form of cool-

ing equipment you need, selecting the required cooling
capacity is outlined in this section.

How to Read Air Conditioner Catalog Numbers
CR43 - 06 1 6 - 002
1

2 3 4

5

1.	 Identifies the type/family of air conditioner and the approximate
height (i.e., CR43 = CR family, about 43” high).
2.	 This is the air conditioner’s listed capacity in BTU/Hr. (i.e., 06 =
6000 BTU/Hr.)
3.	 1 = 115 Volt or 2 = 230 Volt; 4 = 460 Volt
4.	 6 = 50/60 Hz or 60 Hz (depending on unit, see Design Data); 5 =
50 Hz
5.	 Unique set of numbers for each air conditioner which identifies
the accessories on a model.

Selection and Sizing Software
Designed to assist you in determining the most
suitable choices of air conditioners, heat exchangers,
or fans for your application. Download a free copy
of our selection software by visiting our web site:
www.hoffmanonline.com.

TM-2

Subject to change without notice	

Air Conditioners

Sizing Air Conditioners
Determine internal heat load in watts.
Determine the internal heat load produced by
equipment as total operating watts.
1 WATT = 3.413 BTU/Hr.

Determine desired temperature difference in degrees F.
1°C ΔT = 1.8°F ΔT
Determine the ΔT (°F), the temperature difference
between the maximum temperature outside the
enclosure (To) and the maximum desired
temperature inside the enclosure (Ti), which can be
calculated as:
To - Ti = ΔT for air conditioners.

Determine exposed surface area of the enclosure in
square feet.
AREA (ft 2 )
1 M 2 = 10.76 ft 2
Calculate the exposed surface area of the enclosure
in Square Feet:
AREA (ft 2 ) = 2[(H” x W”) + (H” x D”) + (W” x
D”)] ÷ 144
where “H”, “W”, and “D” are the dimensions of the
enclosure in inches.

Determine required air conditioner capacity.
(WATTS x 3.413) + [1.25 x AREA (ft 2 ) x ΔT(°F)] = BTU/HR.
Use this formula to determine the required cooling capacity needed
to maintain the desired operating temperature for your enclosure.
This selection procedure applies to uninsulated, sealed, gasketed
enclosures in indoor locations.
All industrial air conditioners are rated at their maximum operating
point. Operating an air conditioner at temperatures below maximum
conditions will result in reduced cooling capacity. In other words,
operating 95°F ambient and 95°F enclosure temperature results in
a 10 percent to 20 percent reduction in the rated capacity. (Note:
full cooling capacity is probably not necessary at lower ambient
temperatures.)
Air conditioners are appropriate for applications in which:
• The temperature inside the enclosure must be maintained at or
below ambient temperature
• Humidity must be removed from the enclosure
• Ambient air contaminants must be kept out of the enclosure

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2006 Hoffman Enclosures Inc.

Air Conditioners

Air Conditioners
Sizing and Selection
T4 Line Indoor/Outdoor Air Conditioners

H

W

D

T4 Line

in.

mm

in.

mm

in.

mm

BTU/Hr.

Watts

T15

15.75

400

7.50

191

6.30

160

800

234

T20

20.00

508

10.00

254

9.90

251

2000

586

T29

29.00

737

17.00

432

11.30

287

4000

1172

T43

43.00

1093

15.75

400

10.99

279

6680-8600

1958-2520

T50

50.00

1270

19.00

483

11.05

281

13,100

3838

T53

52.85

1342

20.85

530

13.00

330

20,000

5860

Series

in.

mm

in.

mm

in.

mm

BTU/Hr.

Watts

T15

15.75

400

7.50

191

6.30

160

800

234

Series

in.

mm

in.

mm

in.

mm

BTU/Hr.

Watts

13

13.25

337

14.25

362

7.80

198

1000

293

17

17.65

448

12.00

305

8.68

220

1800

527

Series

in.

mm

in.

mm

in.

mm

BTU/Hr.

Watts

28

28.50

724

17.00

432

11.33

288

2000-4000

586-1172

33NSM

34.37

873

12.00

305

9.88

251

4000

1172

36N

38.72

984

15.00

381

11.33

288

6000

1758

Series

in.

mm

in.

mm

in.

mm

BTU/Hr.

Watts

52

52.63

1337

17.13

435

11.33

288

8000-12,000 2344-3516

Side-Mount Subcompact Air Conditioners

H

Side-Mount Compact Air Conditioners

W

H

Side-Mount Mid-Size Air Conditioners

D

W

H

D

W

D

Thermal
Management

Side-Mount Full-Size Air Conditioners

Subject to change without notice	

H

W

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

D

© 2006 Hoffman Enclosures Inc.

TM-3

Air Conditioners

Air Conditioners
Sizing and Selection
3-Phase 460-Volt Side-Mount Full-Size Air Conditioners

H
mm

in.

mm

in.

mm

BTU/Hr.

52

52.63

1337

17.13

435

11.33

288

3800-10,000 1113-2930

Series

in.

mm

in.

mm

in.

mm

BTU/Hr.

Watts

HBII

10.25

260

17.00

432

21.08

535

2200-4000

645-1172

Series

in.

mm

in.

mm

in.

mm

BTU/Hr.

Watts

CR23

23.00

584

10.00

254

8.75

222

1600

469

CR29

29.50

749

15.75

400

8.63

219

2200-4000 645-1172

CR43

43.31

1100

15.75

400

10.25

260

6000-8500 1758-2490

H

Compact to Full-Size Air Conditioners

W

H

CR Series Air Conditioner Package Options

D

W

H

Watts

D

W

D

Series

in.

mm

in.

mm

in.

mm

BTU/Hr.

Watts

CR23

23.00

584

10.00

254

8.75

222

1600

469

CR29

29.50

749

15.75

400

8.63

219

2200-4000 645-1172

CR43

43.31

1100

15.75

400

10.25

260

6000-8500 1758-2490

Series

BTU/Hr.

Watts

Voltage

Frequency (Hz)

VC04—

400

117

115

50/60

VC09—

900

264

115

50/60

VC15—

1500

440

115

50/60

VC17—

1700

498

115

50/60

VC25—

2500

733

115

50/60

VC Vortex Cooler

Subject to change without notice	

D

in.

Top-Mount Air Conditioners

TM-4

W

Series

Cooling Capacity

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2006 Hoffman Enclosures Inc.

Air Conditioners

Air Conditioners
T4 Line
Indoor/Outdoor
Sizing
and Selection
Air Conditioners

Bulletin

MCL

Application

Finish

T4 Air Conditioners provide high-efficiency positive cooling for wallmount and stand-alone enclosures. Designed for indoor and outdoor
applications requiring up to UL Type 4 rating.

RAL 7035 smooth light gray polyester powder coating over
galvanized steel.

Industry Standards

Features
• Equipped with head pressure control for low ambient operation,
compressor heater, coated condenser coil, and thermostat
• Surface and internal recess mounting capabilities
• Thermostat located behind front grille
• EMI/RFI noise suppressor is standard
• Reusable and washable air filter is easily accessible without
removing front cover
• Broad operating range of -40°F (-40°C) to 131°F (55°C)
• 800-13,100 units use a CFC-free or or low ozone-depleting
refrigerant (R134A); 20,000 BTU units use R22
• Compact footprints minimize mounting surface requirements

Construction

Maintains UL/cUL Type 12, 3R, or 4 rating when properly installed on UL/cUL
Type 12 or 4 rated enclosure.

UL/cUL Listed, UL File Number SA6453
CE

Accessories
Replacement Filter

Closed Loop Cooling
These air conditioners are designed and tested to maintain a
UL50-rated separation of the external ambient airflow from the
sealed cabinet interior. This protects the electronic controls and
equipment from shutdowns caused by heat, humidity, dust, and other
contaminants.

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

Thermal
Management

• Includes power cord with plug for standard grounded outlet
• Built-in hanging brackets facilitate installation on door, side, or rear
of the enclosure
• Condensate management system with base pan and drain
• High performance, industrial grade and efficiency fans provide
maximum heat transfer
• Mounting template, hardware, gasket, and instruction manual
furnished

© 2006 Hoffman Enclosures Inc.

TM-5

Air Conditioners

T4 Line Indoor/Outdoor
Air Conditioners

Bulletin

MCL

800 BTU 15.75 x 7.50 x 6.30 (400 x 191 x 160) —Replacement Filter Catalog Number 10100091
Full Load
Amps

50 Hz Max. Amb. Temp

60 Hz Max. Amb. Temp

°F

°C

°F

°C

Shipping Weight
Lbs./Kgs

Catalog Number

Voltage

Hz

Phase

BTU/Hr. @ Max.
Ambient Temp.

T150116G100

110/115

50/60

1

800/800

3.8/3.6

125

52

131

55

27/12

T150126G100

220/230

50/60

1

800/900

1.4/1.5

125

52

131

55

27/12

TM-6

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Air Conditioners

T4 Line Indoor/Outdoor
Air Conditioners

Bulletin

MCL

2000 BTU 20.00 x 10.00 x 9.90 (508 x 254 x 251) —Replacement Filter Catalog Number 10100090
60 Hz Max. Amb. Temp

Catalog Number

Voltage

Hz

Phase

BTU/Hr. @ Max.
Ambient Temp.

Full Load Amps

°F

°C

Shipping Weight
Lbs./Kgs

T200216G100

115

50/60

1

1800/2000

7

131

55

56/25

T200226G100

230

50/60

1

1800/2000

3.5

131

55

56/25

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-7

Air Conditioners

T4 Line Indoor/Outdoor
Air Conditioners

Bulletin

MCL

4000 BTU 29.00 x 17.00 x 11.30 (737 x 432 x 287) —Replacement Filter Catalog Number 10100093
60 Hz Max. Amb. Temp

Catalog Number

Voltage

Hz

Phase

BTU/Hr. @ Max.
Ambient Temp.

Full Load Amps

T290416G100

115

50/60

1

3600/4000

13.8/13.6

131

55

107/49

T290426G100

230

50/60

1

3600/4000

6.9/6.8

131

55

107/49

TM-8

Subject to change without notice	

°F

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

°C

Shipping Weight
Lbs./Kgs

© 2007 Hoffman Enclosures Inc.

Air Conditioners

T4 Line Indoor/Outdoor
Air Conditioners

Bulletin

MCL

6680-8600 BTU 43.00 x 15.75 x 10.99 (1093 x 400 x 279) —Replacement Filter Catalog Number 10100096
60 Hz Max. Amb. Temp

Catalog Number

Voltage

Hz

Phase

BTU/Hr. @ Max.
Ambient Temp.

Full Load Amps

°F

°C

Shipping Weight
Lbs./Kgs

T430616G100

115

50/60

1

6310/6680

9.2/8.6

131

55

125/57

T430626G100

230

50/60

1

6520/6770

4.4/3.8

131

55

125/57

T430816G100

115

50/60

1

7900/8600

10.4/11.2

131

55

125/57

T430826G100

230

50/60

1

7400/8200

5.2/5.4

131

55

125/57

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-9

Air Conditioners

T4 Line Indoor/Outdoor
Air Conditioners

Bulletin

MCL

13,100 BTU 50.00 x 19.00 x 11.05 (1270 x 483 x 281) —Replacement Filter Catalog Number 10100083

Catalog Number

Voltage

Hz

Phase

BTU/Hr. @ Max.
Ambient Temp.

T501226G100

230

50/60

1

11,600/13,100

TM-10

Subject to change without notice	

60 Hz Max. Amb. Temp
Full Load Amps

°F

°C

Shipping Weight
Lbs./Kgs

9.0/9.5

131

55

164/75

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Air Conditioners

T4 Line Indoor/Outdoor
Air Conditioners

Bulletin

MCL

20,000 BTU 52.85 x 20.85 x 13.00 (1342 x 530 x 330) —Replacement Filter Catalog Number 10100085
60 Hz Max. Amb. Temp

Catalog Number

Voltage

Hz

Phase

BTU/Hr. @ Max.
Ambient Temp.

Full Load Amps

°F

°C

Shipping Weight
Lbs./Kgs

T531926100

230

50/60

1

18,000/20,000

17/19

131

55

197/90

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-11

Air Conditioners

Side-Mount Subcompact
Air Conditioner

Bulletin

MCL

Application

Finish

This Side-Mount Subcompact Air Conditioner provides highefficiency, positive cooling for wall-mount and narrow enclosures,
supporting industry trends toward smaller, densely-populated
enclosures with greater heat dissipation requirements. Can be sidemounted on enclosures with 8 in. (203mm) or greater depth.

RAL 7035 light gray polyester powder coating

Construction
• Models are equipped with a screwdriver-adjustable thermostat
located behind the front grille
• EMI/RFI noise suppressor is standard
• Subcompact models are ideal for cooling smaller enclosures. The
T15 series is only 7.50 in. (191mm) wide, making it ideal for wallmount enclosures or enclosures with narrow side walls.
• Includes power cord with plug for standard grounded outlet
• Built-in hanging brackets facilitate installation on door, side, or rear
of the enclosure
• Reusable and washable air filter is easily accessible without
removing front cover
• Condensate management system with base pan side drain
• High-performance, industrial-grade ball-bearing fans provide
maximum heat transfer
• All units use CFC-free, environmentally-safe R134A refrigerant
• Mounting hardware, gaskets, mounting template, and instruction
manual furnished

Industry Standards
Maintains UL/cUL Type 12 or 3R rating when properly installed on a UL/cUL
Type 12 enclosure.

UL/cUL Listed, UL File Number SA6453
CE

Accessories
Replacement Filter

Closed Loop Cooling
These subcompact air conditioners are designed and tested to
maintain a UL50 rated separation of the external ambient airflow
from the sealed cabinet interior. This protects the electronic
controls and equiment from shutdowns caused by heat, humidity,
dust, and other contaminants.

Standard Sizes Side-Mount Subcompact Air Conditioner—Replacement Filter Catalog Number 10100091
Catalog Number Voltage

Hz

Phase

BTU/Hr. @ Max.
Ambient Temp.

Full Load Amps

50 Hz Max Amb. 60 Hz Max Amb. Shipping Weight
Temp. °F/°C
Temp. °F/°C
Lbs./Kgs

T150116G120
T150126G120

50/60
50/60

1
1

800
800

3.8/3.6
1.4/1.5

125/52
125/52

TM-12

110/115
220/230

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

131/55
131/55

27/12.25
27/12.25

© 2007 Hoffman Enclosures Inc.

Side-Mount Subcompact
Air Conditioner

Air Conditioners
Bulletin

MCL

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-13

Side-Mount Compact
Air Conditioners

Air Conditioners
Bulletin

MCL

Finish
• Body: RAL 7042 smooth gray polyester powder coating
• Grille: RAL 7035 light gray

Industry Standards
Maintains U/cUL Type 12 rating when properly installed on a UL/cUL Type 12
enclosure.

UL/cUL Listed, UL File Number SA6453
CE

Closed Loop Cooling
Within the air conditioner, the recirculated clean air is kept separate
from the ambient airflow system. This protects the electronic
controls and prevents shutdowns caused by heat, humidity, dust, and
other contaminants.

Application
Models are equipped with a thermostat control that offers
convenient digital display of enclosure temperature and high
temperature alarm (125°F/52°C). Flashing display indicates alarm
condition. EMI/RFI noise suppressor is standard. Compact models
are ideal for cooling smaller enclosures from 25 cu. ft. to 40 cu.
ft. The Series 17 model is only 12 inches wide, making it ideal for
enclosures with narrow side walls.

Features
• Most components accessible by removing grille/filter
• Hanging brackets facilitate installation on door, side, or front of
enclosure
• For a typical application, unique condensate management system
evaporates moisture from enclosure
• High performance, industrial-grade ball-bearing fans provide
maximum heat transfer
• All units use a CFC-free or environmentally safe refrigerant that is
universally accepted
• Mounting hardware, gaskets, mounting template and instruction
manual furnished

17 Series

Ambient airflow
Clean airflow

13 Series

NOTE: Hoffman side-mount models are directly interchangeable with comparable Slimboy and GENESIS™ models.

TM-14

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Air Conditioners

Side-Mount Compact
Air Conditioners

Bulletin

MCL

Side Mount 13 Series 13.25 x 14.25 x 7.8 0 (337 x 362 x 198) Replacement Filter No. 10100057
Catalog Number

Voltage

Hz

Phase

BTU/Hr. @
125°F/125°F

Full Load Amps

Max. Ambient
Temp., °F/°C

Shipping Weight
Lbs./Kgs

M130116G1014
M130126G1008

115
230

50/60
50/60

1
1

800/1000
800/1000

4.0/4.0
2.2/2.1

125/52
125/52

48/22
48/22

Side-Mount to Enclosure
Generally, the 13 Series air conditioners are most effective on
enclosures up to 25 cu. ft. unless the application only requires spot
cooling in a larger enclosure.

Side Mount 17 Series 17.65 x 12.00 x 8.68 (448 x 305 x 220) Replacement Filter No. 10100057
Catalog Number

Voltage

Hz

Phase

BTU/Hr. @
125°F/125°F

Full Load Amps

Max. Ambient
Temp., °F/°C

Shipping Weight
Lbs./Kgs

M170216G009
M170226G004

110/115
220/230

50/60
50/60

1
1

1500/1800
1500/1800

6.6/6.7
4.2/3.7

125/52
125/52

56/25
56/25

Side-Mount to Enclosure

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-15

Thermal
Management

Generally, the 17 Series air conditioners are most effective on
enclosures up to 40 cu. ft. unless the application only requires spot
cooling in a larger enclosure.

Side-Mount Compact
Air Conditioners

Air Conditioners
Bulletin

MCL

Side-Mount 13 Series Air Conditioner Drawing

Side-Mount 17 Series Air Conditioner Drawing

TM-16

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Side-Mount Compact
Air Conditioners

Air Conditioners
Bulletin

MCL

Side-Mount 13 Series Mounting Cutout Dimensions Drawing

Side-Mount 17 Series Air Conditioner Mounting Cutout Dimensions Drawing

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-17

Air Conditioners

Side-Mount Mid-Size
Air Conditioners

Bulletin

MCL

Finish
• Body: RAL 7042 smooth gray polyester powder coating
• Grille: RAL 7035 light gray

Industry Standards
Maintains UL/cUL Type 12 rating when properly installed on a UL/cUL Type 12
enclosure.

UL/cUL Listed, UL File Number SA6453
CE

Closed Loop Cooling
Within the air conditioner, the recirculated clean air is kept separate
from the ambient airflow system. This protects the electronic
controls and prevents shutdowns caused by heat, humidity, dust, and
other contaminants.

Application
28 Series air conditioners are equipped with a thermostat control
that offers convenient digital display of enclosure temperature and
high temperature alarm (125°F/52°C). Flashing display indicates
alarm condition. EMI/RFI noise suppressor is standard on all models.
33NSM Series and 36N Series offer a broad capacity range with the
advantage of mounting on narrow enclosures

Features
• The 33NSM Series is only 12 inches wide and the 36N Series is 15
inches wide
• Most components accessible by removing air filter
• Hanging brackets facilitate installation on door, side, or front of
enclosure
• For a typical application, unique condensate management system
evaporates moisture from enclosure
• High performance, industrial-grade ball bearing fans in the 33
NSM, and high performance centrifugal blowers in the 28 and 36N,
provide maximum heat transfer in densely packed enclosures
• All units use a CFC-free or environmentally-safe refrigerant that is
universally accepted
• Mounting gaskets and instruction manual furnished

28 Series

33NSM Series

Ambient airflow
Clean airflow

36N Series

TM-18

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Air Conditioners

Side-Mount Mid-Size
Air Conditioners

Bulletin

MCL

28 Series 28.50 x 17.00 x 11.33 (724 x 432 x 288) Replacement Filter No. 10100056
Catalog Number

Voltage

Hz

Phase

BTU/Hr @
125°F/125°F

Full Load Amps

Max. Ambient
Temp., °F/°C

Shipping Weight
Lbs./Kgs

M280216G013
M280226G004
M280416G007
M280426G032

115
230
115
230

50/60
50/60
50/60
50/60

1
1
1
1

2200/2200
2200/2200
3800/4000
3800/4000

9.8/9.0
5.0/4.5
14.6/14.0
7.4/6.9

125/52
125/52
125/52
125/52

98/45
98/45
116/53
116/53

33NSM Series 34.37 x 12.00 x 9.88 (873 x 305 x 251) Replacement Filter No. 10100057
Catalog Number

Voltage

Hz

Phase

BTU/Hr @
125°F/125°F

Full Load Amps

Max. Ambient
Temp., °F/°C

Shipping Weight
Lbs./Kgs

M330416G010
M330426G009

115
230

50/60
50/60

1
1

3700/4000
3700/4000

13.0/13.2
7.2/7.3

125/52
125/52

105/48
105/48

36N Series 38.72 x 15.00 x 11.38 (984 x 381 x 288) Replacement Filter No. 10100056
Voltage

Hz

Phase

BTU/Hr @
125°F/125°F

Full Load Amps

Max. Ambient
Temp., °F/°C

Shipping Weight
Lbs./Kgs

M360616307
M360626306

115
230

50/60
50/60

1
1

5000/6000
5000/6000

14.0/14.0
7.0/7.0

152/52
152/52

120/54
120/54

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-19

Thermal
Management

Catalog Number

Side-Mount Mid-Size
Air Conditioners

Air Conditioners
Bulletin

MCL

28 Series

33NSM Series

36N Series

TM-20

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Air Conditioners

Side-Mount Mid-Size
Air Conditioners

Bulletin

MCL

28 Series

Side-Mount to Enclosure
Mounting Cutout Dimensions
33NSM Series

Side-Mount to Enclosure

Mounting Cutout Dimensions
36N Series

Thermal
Management

Side-Mount to Enclosure

Mounting Cutout Dimensions
Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-21

Air Conditioners

Side-Mount Full-Size
Air Conditioners

Bulletin

MCL

• For a typical application, unique condensate management system
evaporates moisture from enclosure
• High performance centrifugal blowers are ideal for densely packed
enclosures
• All units use a CFC-free or environmentally safe refrigerant that is
universally accepted
• Mounting gaskets and instruction manual furnished

Finish
• Body: RAL 7042 smooth gray polyester powder coating
• Grille: RAL 7035 light gray

Industry Standards
8000 BTU/HR MODELS (115V and 230V)
Maintains UL/cUL Type 12 rating when properly installed on a UL/cUL Type 12
enclosure.

UL/cUL Listed, UL File Number SA6453
CE

12,000 BTU/HR MODELS (115V)
Application

Maintains UL/cUL Type 12 rating when properly installed on a UL/cUL Type 12
enclosure.

52 Series air conditioners are equipped with a thermostat control
that offers convenient digital display of enclosure temperature and
high temperature alarm (125°F/52°C). Flashing display indicates alarm
condition. EMI/RFI noise suppressor is standard.

UL/cUL Recognized, UL File Number SA6453
CE

Features

Maintains UL/cUL Type 12 rating when properly installed on a UL/cUL Type 12
enclosure.

• Most components accessible by removing air filter
• Mounting brackets facilitate installation on door, side, or front of
enclosure

TM-22

Subject to change without notice	

12,000 BTU/HR MODELS (230V)

UL/cUL Listed, UL File Number SA6453
CE

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Air Conditioners

Side-Mount Full-Size
Air Conditioners

Bulletin

MCL

52 Series 52.63 x 17.13 x 11.33 (1337 x 435 x 288) Replacement Filter No. 10100056
Catalog Number

Voltage

Hz

Phase

BTU/Hr @
125°F/125°F

Full Load Amps

Max. Ambient
Temp., °F/°C

Shipping Weight
Lbs./Kgs

M520816032
M520826015
M521216017a
M521226034

115
230
110/115
220/230

50/60
50/60
50/60
50/60

1
1
1
1

6700/8000
6700/8000
10000/12000
10000/12000

14.5/14.5
8.0/8.0
24.4/23.0
12.2/11.6

125/52
125/52
125/52
125/52

160/73
160/73
175/79
175/79

a

UL Component Recognized and cUL Component Recognized.

Closed Loop Cooling
Within the air conditioner, the recirculated clean air is kept separate
from the ambient airflow system. This protects the electronic
controls and prevents shutdowns caused by heat, humidity, dust, and
other contaminants.

Ambient airflow
Clean airflow

52 Series

Thermal
Management

Side-Mount to Enclosure
Mounting Cutout Dimensions

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-23

3-Phase 460-Volt Side-Mount Full-Size
Air Conditioners

Air Conditioners
Bulletin

MCL
Features
•
•
•
•
•
•
•
•
•
•

Thermostat control
Most components accessible by removing air filter
Digital display of enclosure temperature
Mounting brackets facilitate installation to enclosure
High-temperature alarm
Unique condensate management system evaporates moisture from
enclosure (for a typical application where the enclosure doors are
kept closed)
High-performance centrifugal blowers are ideal for circulating air
inside densely-packed enclosures
All units use a CFC-free, environmentally safe refrigerant that is
universally accepted (R134A)
Mounting gaskets and instruction manual furnished
EMI/RFI noise suppression is standard

Finish
• Body: RAL 7042 smooth gray polyester powder coating
• Grille: RAL 7035 light gray

Industry Standards
Maintains UL/cUL Type 12 or 3R rating when properly installed on a UL/cUL
Type 12 enclosure.

Application
The 52 Series 460-Volt 3-phase air conditioner mounts to the
side of a large enclosure to cool electrical controls in industrial
environments. Efficient 460-Volt 3-phase compresssor and
motors eliminate the need for additional transformers in 460-Volt
applications.

TM-24

Subject to change without notice	

UL/cUL Listed, UL File Number SA6453
CE

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

3-Phase 460-Volt Side-Mount Full-Size
Air Conditioners

Air Conditioners
Bulletin

MCL
52 Series 52.63 x 17.13 x 11.33 (1337 x 435 x 288) Replacement Filter No. 10100056
Catalog Number

Voltage

Hz

Phase

BTU/Hr @
125°F/125°F

Full Load Amps

Max. Ambient
Temp., °F/°C

Shipping Weight
Lbs./Kgs

M520446G002
M520646G002
M520846G002
M521046G002

460
460
460
460

50/60
50/60
50/60
50/60

3
3
3
3

3800/4100
5700/6000
6500/7500
8000/10000

1.8/1.6
2.0/1.8
3.5/3.2
3.7/3.4

125/52
125/52
125/52
125/52

162/74
162/74
162/74
165/75

Closed Loop Cooling
Within the air conditioner, the recirculated clean air
is kept separate from the ambient airflow system.
This protects the electronic controls and prevents
shutdowns caused by heat, humidity, dust, and other
contaminants.

Ambient airflow
Clean airflow

Thermal
Management

Side-Mount to Enclosure

Mounting Cutout Dimensions

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-25

Air Conditioners

Top-Mount Series Air Conditioners

Bulletin

MCL

Application

Finish

Top-mount air conditioners are ideal for use where there is little or
no clearance around the enclosure. HB11 top-mount air conditioners
are equipped with a thermostat control that offers convenient
digital display of enclosure temperature and high temperature alarm
(125°F/52°C).

• Body: RAL 7042 smooth gray polyester powder coating
• Grille: RAL 7035 light gray

Features
• Most components accessible by removing air filter
• For a typical application, unique condensate management system
evaporates moisture from enclosure
• High-performance CFM ball-bearing centrifugal blowers perform
well in densely packed enclosures
• All units use a CFC-free or environmentally safe refrigerant that is
universally accepted
• Mounting gaskets and instruction manual furnished

Industry Standards
Maintains UL/cUL Type 12 rating when properly installed on a UL/cUL Type 12
enclosure.

UL/cUL Recognized, UL File Number SA6453
CE

Closed Loop Cooling
Within the air conditioner, the recirculated clean air is kept separate
from the ambient airflow system. This protects the electronic
controls and prevents shutdowns caused by heat, humidity, dust, and
other contaminants.

Top-Mount to Enclosure
For Type 12 enclosure, interfacing air-out
and air-in openings are required in the
enclosure top.

Ambient airflow
Clean airflow

NOTES: Hoffman top-mount units are directly interchangeable with comparable GENESIS™ and Slimboy models.

TM-26

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Air Conditioners

Top-Mount Series Air Conditioners

Bulletin

MCL

HB11 Series 10.25 x 17.00 x 21.08 (260 x 432 x 536) Replacement Filter No. 10100056
Catalog Number

Voltage

Hz

Phase

BTU/Hr (Watts) @
125°F/125°F

Full Load Amps

Max. Ambient
Temp., °F (°C)

Shipping Weight
Lbs (Kgs)

MHB110216G306
MHB110226G306
MHB110416G307
MHB110426G306

115
230
115
230

50/60
50/60
50/60
50/60

1
1
1
1

2200/2200
2200/2200
3300/4000
3300/4000

9.7/9.0
5.5/4.6
14.7/13.6
8.0/7.5

125/52
125/52
125/52
125/52

104/47
104/47
118/54
118/54

Thermal
Management

Mounting Cutout Dimensions

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-27

CR Compact, Mid-Size, and Full-Size
Air Conditioners

Features

• Thermostat control and EMI/RFI noise suppressor included
• Front cover hinges open for quick access to all components
• Filter can be inverted to double operating time between cleanings
and or replacements (models CR23 and CR29 only)
• Filterless operation possible in many applications
• Mounting flanges facilitate installation on door, side, or front of
enclosure
• For a typical application, unique condensate management system
evaporates moisture from enclosure
• High-performance fans and blowers are ideal for densely-packed
enclosures
• All units use a CFC-free or environmentally safe refrigerant that is
universally accepted
• Mounting hardware, gaskets, mounting template and instruction
manual furnished

Air Conditioners
Bulletin

MCL

Package 4: Low Ambient Temperature/SST/Corrosion
Maintains UL/cUL Type 12 or Type 3R rating when properly installed on a
UL/cUL Type 12 rated enclosure.

• For use where air conditioner must operate in ambient
temperatures below 50°F (10°C)
• Lowest operating temp = 40°F (4.4°C)
• Type 304 stainless steel exterior for longer life in corrosive and
outdoor applications
• For protection from corrosive environments, thermostat is tinplated and a special coating is applied to coils and copper lines
exposed to the ambient air

Package 5: Low Ambient Temperature/SST/Level 2
Controller
Maintains UL/cUL Type 12 or Type 3R rating when properly installed on a
UL/cUL Type 12 rated enclosure.

UL/cUL Listed, UL File Number SA6453
CE

• For use where air conditioner must operate in ambient
temperatures below 50°F (10°C)
• Lowest operating temp = 40°F (4.4°C)
• Type 304 stainless steel exterior for longer life in corrosive and
outdoor applications
• Includes microprocessor-based, programmable temperature
management, digital display, and remote alarm capability

Air Conditioner Packages

Package 6: Outdoor/SST/Corrosion/4X

Finish

Available in brushed stainless steel or RAL 7035 light gray polyester
powder coating.

Industry Standards

The CR family of air conditioners is available in six different package
combinations.

Package 1: Basic
Maintains UL/cUL Type 12 or Type 3R rating when properly installed on a
UL/cUL Type 12 rated enclosure.

• Standard air conditioner with painted mild steel exterior

Package 2: Level 2 Controller
Maintains UL/cUL Type 12 or Type 3R rating when properly installed on a
UL/cUL Type 12 rated enclosure.

• Standard air conditioner with painted mild steel exterior
• Includes microprocessor-based programmable temperature
management, digital display, and remote alarm capability

Maintains UL/cUL Type 4X, 4, or 12 rating when properly installed on a UL/
cUL Type 4X, 4, or 12 rated enclosure.

• For use where air conditioner must operate in ambient
temperatures below 50°F (10°C)
• Lowest operating temp = 40°F (4.4°C)
• Constructed of 304 stainless steel for increased protection in
corrosive and outdoor applications
• For protection from corrosive environments, thermostat is tinplated and a special coating is applied to coils and copper lines
exposed to the ambient air
• Protective shield, shown below, protects unit in outdoor and hosedown applications and provides 4X rating. Shield protrudes about
2 inches (51mm) from the air conditioner.

Package 3: Low Ambient Temperature
Maintains UL/cUL Type 12 or Type 3R rating when properly installed on a
UL/cUL Type 12 rated enclosure.

• Standard air conditioner with painted mild steel exterior
• For use where air conditioner must operate in ambient
temperatures below 50°F (10°C)
• Lowest operating temp = 40°F (4.4°C)

Shield maintains UL/cUL
Type 4X rating. (Package 6)
Ambient air enters from
the bottom

Notes: Hoffman top-mounted units are directly interchangeable with comparable GENESIS™ and Slimboy models.

TM-28

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

AIR CONDITIONERS

CR Compact, Mid-Size, and Full-Size
Air Conditioners

Rev. A 06/07

Bulletin

MCL

Standard Sizes CR Compact, Mid-Size, and Full-Size Air Conditioners
Catalog Number BTU/Voltage/Hz

Package

Catalog Number BTU/Voltage/Hz

Package

CR230216G002
CR230216G016
CR230216G013
CR230216G007
CR230216G017
CR230216G015
CR230226G002
CR230226G030
CR230226G009
CR230226G016
CR230226G014
CR290216G002
CR290216G030
CR290216G035
CR290216G013
CR290216G036
CR290226G002
CR290226G030
CR290226G020
CR290226G010
CR290226G031
CR290226G037
CR290416G002
CR290416G047
CR290416G045
CR290416G030
CR290416G052
CR290416G068

1 - Basic
2 - Level 2 Controller
3 - Low Ambient Temperature
4 - Low Ambient/SST/Corrosion
5 - Low Ambient/SST/Level 2
6 - Outdoor/SST/Corrosion/4X
1 - Basic
3 - Low Ambient Temperature
4 - Low Ambient/SST/Corrosion
5 - Low Ambient/SST/Level 2
6 - Outdoor/SST/Corrosion/4X
1 - Basic
2 - Level 2 Controller
3 - Low Ambient Temperature
4 - Low Ambient/SST/Corrosion
6 - Outdoor/SST/Corrosion/4X
1 - Basic
2 - Level 2 Controller
3 - Low Ambient Temperature
4 - Low Ambient/SST/Corrosion
5 - Low Ambient/SST/Level 2
6 - Outdoor/SST/Corrosion/4X
1 - Basic
2 - Level 2 Controller
3 - Low Ambient Temperature
4 - Low Ambient/SST/Corrosion
5 - Low Ambient/SST/Level 2
6 - Outdoor/SST/Corrosion/4X

CR290426G002
CR290426G027
CR290426G022
CR290426G017
CR290426G054
CR430616002
CR430616016
CR430616013
CR430616004
CR430616031
CR430626002
CR430626018
CR430626014
CR430626020
CR430626034
CR430816002
CR430816021
CR430816038
CR430816010
CR430816023
CR430816036
CR430826002
CR430826026
CR430826007
CR430826037
CR430826024
CR430826038

1 - Basic
2 - Level 2 Controller
3 - Low Ambient Temperature
4 - Low Ambient/SST/Corrosion
6 - Outdoor/SST/Corrosion/4X
1 - Basic
2 - Level 2 Controller
3 - Low Ambient Temperature
4 - Low Ambient/SST/Corrosion
6 - Outdoor/SST/Corrosion/4X
1 - Basic
2 - Level 2 Controller
3 - Low Ambient Temperature
5 - Low Ambient/SST/Level 2
6 - Outdoor/SST/Corrosion/4X
1 - Basic
2 - Level 2 Controller
3 - Low Ambient Temperature
4 - Low Ambient/SST/Corrosion
5 - Low Ambient/SST/Level 2
6 - Outdoor/SST/Corrosion/4X
1 - Basic
2 - Level 2 Controller
3 - Low Ambient Temperature
4 - Low Ambient/SST/Corrosion
5 - Low Ambient/SST/Level 2
6 - Outdoor/SST/Corrosion/4X

1600 BTU/Hr. 115V-50/60 Hz
1600 BTU/Hr. 115V-50/60 Hz
1600 BTU/Hr. 115V-50/60 Hz
1600 BTU/Hr. 115V-50/60 Hz
1600 BTU/Hr. 115V-50/60 Hz
1600 BTU/Hr. 115V-50/60 Hz
1600 BTU/Hr. 230V-50/60 Hz
1600 BTU/Hr. 230V-50/60 Hz
1600 BTU/Hr. 230V-50/60 Hz
1600 BTU/Hr. 230V-50/60 Hz
1600 BTU/Hr. 230V-50/60 Hz
2200 BTU/Hr. 115V-50/60 Hz
2200 BTU/Hr. 115V-50/60 Hz
2200 BTU/Hr. 115V-50/60 Hz
2200 BTU/Hr. 115V-50/60 Hz
2200 BTU/Hr. 115V-50/60 Hz
2200 BTU/Hr. 230V-50/60 Hz
2200 BTU/Hr. 230V-50/60 Hz
2200 BTU/Hr. 230V-50/60 Hz
2200 BTU/Hr. 230V-50/60 Hz
2200 BTU/Hr. 230V-50/60 Hz
2200 BTU/Hr. 230V-50/60 Hz
4000 BTU/Hr. 115V-50/60 Hz
4000 BTU/Hr. 115V-50/60 Hz
4000 BTU/Hr. 115V-50/60 Hz
4000 BTU/Hr. 115V-50/60 Hz
4000 BTU/Hr. 115V-50/60 Hz
4000 BTU/Hr. 115V-50/60 Hz

4000 BTU/Hr. 230V-50/60 Hz
4000 BTU/Hr. 230V-50/60 Hz
4000 BTU/Hr. 230V-50/60 Hz
4000 BTU/Hr. 230V-50/60 Hz
4000 BTU/Hr. 230V-50/60 Hz
6000 BTU/Hr. 115V-60 Hz
6000 BTU/Hr. 115V-60 Hz
6000 BTU/Hr. 115V-60 Hz
6000 BTU/Hr. 115V-60 Hz
6000 BTU/Hr. 115V-60 Hz
6000 BTU/Hr. 230V-60 Hz
6000 BTU/Hr. 230V-60 Hz
6000 BTU/Hr. 230V-60 Hz
6000 BTU/Hr. 230V-60 Hz
6000 BTU/Hr. 230V-60 Hz
8500 BTU/Hr. 115V-60 Hz
8500 BTU/Hr. 115V-60 Hz
8500 BTU/Hr. 115V-60 Hz
8500 BTU/Hr. 115V-60 Hz
8500 BTU/Hr. 115V-60 Hz
8500 BTU/Hr. 115V-60 Hz
8500 BTU/Hr. 230V-60 Hz
8500 BTU/Hr. 230V-60 Hz
8500 BTU/Hr. 230V-60 Hz
8500 BTU/Hr. 230V-60 Hz
8500 BTU/Hr. 230V-60 Hz
8500 BTU/Hr. 230V-60 Hz

NOTE: Some packages are not listed. Verify package before ordering.

CR23 23.00 x 10.00 x 8.75 (584 x 254 x 222) Replacement Filter No. 23200400
Catalog
Number

Voltage

CR230216GXXX 115
CR230226GXXX 230

Hz

Phase

BTU/Hr. @
131°F/131°Fa

50/60
50/60

1
1

1400/1600
1400/1600

Amps @
131°F/131°F

BTU/Hr. @
95°F/95°Fa

Amps @
95°F/95°F

Max Amb.
Temp °F/°C

Shipping
Weightb
Lbs./Kgs

4.1/4.5
2.2/2.2

1500/1700
1500/1700

3.8/3.6
2.1/1.8

131/55
131/55

57/26
57/26

CR29 29.50 x 15.75 x 8.63 (749 x 400 x 219) Replacement Filter No. 10100032
Catalog
Number

Voltage

Hz

CR290216GXXX
CR290226GXXX
CR290416GXXX
CR290426GXXX

115
230
115
230

50/60
50/60
50/60
50/60

Phase

BTU/Hr. @
131°F/131°Fa

Amps @
131°F/131°F

BTU/Hr. @
95°F/95°Fa

Amps @
95°F/95°F

Max Amb.
Temp °F/°C

Shipping
Weightb
Lbs./Kgs

1
1
1
1

2000/2200
2500/2700
3500/4000
3500/4000

7.4/7.4
4.6/3.9
13.5/13.5
6.7/6.6

1700/2000
1900/2300
2400/2800
2400/2800

7.0/6.0
4.4/3.3
10.7/9.6
5.9/5.3

131/55
131/55
131/55
131/55

98/44
98/44
118/54
118/54

Catalog
Number

Voltage

Hz

CR430616XXX
CR430626XXX
CR430816XXX
CR430826XXX

115
230
115
230

60
60
60
60

Phase

BTU/Hr. @
131°F/131°F

Amps @
131°F/131°F

BTU/Hr. @
95°F/95°F

Amps @
95°F/95°F

Max Amb.
Temp °F/°C

Shipping
Weightb
Lbs./Kgs

1
1
1
1

6000
6000
8500
8500

13.7
6.9
16.0
8.2

5100
5100
7500
7500

11.0
5.5
12.9
6.3

131/55
131/55
131/55
131/55

133/60
133/60
140/64
140/64

a
Because
b

air conditioners provide less cooling at lower operating temperatures, two cooling capacity ranges are provided.
For Stainless Steel UL Type 4X models, add approximately 10 lbs. to shipping weight.

Closed Loop Cooling
Within the air conditioner, the recirculated clean air is kept
separate from the ambient airflow system. This protects
the electronic controls and prevents shutdowns caused by
heat, humidity, dust, and other contaminants.

Subject to change without notice

Ambient airflow
Clean airflow

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com

© 2007 Hoffman Enclosures Inc.

TM-29

Thermal
Management

CR43 43.31 x 15.75 x 10.25 (1100 x 400 x 260) Replacement Filter No. 10100044

CR Compact, Mid-Size, and Full-Size
Air Conditioners

Air Conditioners
Bulletin

MCL

CR23

CR29

CR43

TM-30

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

CR Compact, Mid-Size, and Full-Size
Air Conditioners

Air Conditioners
Bulletin

MCL

CR23

CR23 Side-Mount to Enclosure
CR23 Mounting Cutout Dimensions

CR29

CR29 Side-Mount to Enclosure
CR29 Mounting Cutout Dimensions

CR43

Thermal
Management

CR43 Side-Mount to Enclosure
CR43 Mounting Cutout Dimensions

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-31

Air Conditioners

Vortex Cooling Systems

Application

Industry Standards

The compact size of VCool vortex cooling systems make them ideally
suited for small enclosures. Powered by compressed air (typically
100 psig, not to exceed 150 psig), VCool coolers generate chilled
air without refrigerants or moving parts. These coolers provide
exceptional reliability with minimal maintenance in even the most
harsh or dirty environments.

NEMA Type 4 Models:

Construction
• NEMA models are aluminum
• All models include a 5-micron airline filter, 115V solenoid,
thermostat, and a ducting kit to distribute cold air throughout the
enclosure
• Thermostatically controlled to save energy by operating only when
necessary
• Cooling capacities to 2500 Btu/Hr (733 W).

Bulletin

MCL

Maintains UL/cUL Type 4 when properly installed on a UL/cUL Type 4
enclosure.

UL508, File Number E187045: Type 4
NEMA Type 4X Models:
Maintains UL/cUL Type 4X when properly installed on a UL/cUL Type 4X
enclosure.

UL508, File Number E187045: Type 4X
NEMA Type 12 Models:
Maintains UL/cUL Type 12 when properly installed on a UL/cUL Type 12
enclosure.

UL508, File Number E187045: Type 12

Accessories (for the enclosure)
Can be installed on all enclosure product families.
Separate VCool accessories include in-line oil filter and 230V
solenoid.

Finish
Brushed satin aluminum or stainless steel.

How the VCool Vortex Cooling System Works

Vortex Tube Air Flow Schematic

The VCool Vortex cooling system uses the principle of vortex
cooling. A vortex occurs when a fluid (air) rotates around an axis,
like a tornado.
A vortex tube creates a vortex from compressed air and then
separates it into hot and cold airstreams.
On entering the VCool tube, the compressed air flow first passes
through a vortex generation chamber, which starts the air stream
rotating. The air stream exiting the chamber rotates at speeds up
to 1,000,000 rpm as it is forced along the inner walls of the tube
towards the control valve. At the control valve a small portion of
the air exits through a needle valve as hot exhaust. The remaining
air is forced back through the center of the incoming air stream at
a slower speed, where the slower-moving return air gives up heat
energy to the faster-moving incoming air. The cooled return air
then flows through the center of the vortex generation chamber
and exits through the cold air exhaust port.

NOTE: Manufactured for Hoffman by ITW Vortec.

TM-32

Subject to change without notice	

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© 2007 Hoffman Enclosures Inc.

Air Conditioners

Vortex Cooling Systems

Bulletin

MCL

Standard Sizes VC Series NEMA Type 12
Catalog
Number

Cooling
Capacity
BTU/Hr.

Cooling
Capacity
W

Compressed Air Compressed Air
Consumption
Consumption
SCFM
l³/m

Noise Level
db

Voltage

Frequency
Hz

Material

Weight
lb.

Weight
kg

VC0416012
VC0916012
VC1516012
VC2516012

400
900
1500
2500

117
264
440
733

8
15
25
35

69
80
83
90

115
115
115
115

50/60
50/60
50/60
50/60

Aluminum
Aluminum
Aluminum
Aluminum

5
6
6
6

2.27
2.72
2.72
2.72

227
425
708
991

Standard Sizes VC Series NEMA Type 4, 4X
Catalog
Number

Cooling
Capacity
BTU/Hr.

Cooling
Capacity
W

Compressed Air Compressed Air
Consumption
Consumption
SCFM
l³/m

Noise Level
db

Voltage

Frequency
Hz

Material

Weight
lb.

Weight
kg

VC0916004
VC1716004
VC2516004
VC091604X
VC171604X
VC251604X

900
1700
2500
900
1700
2500

264
498
733
264
498
733

15
25
35
15
25
35

83
86
90
83
86
90

115
115
115
115
115
115

50/60
50/60
50/60
50/60
50/60
50/60

Aluminum
Aluminum
Aluminum
Stainless Steel
Stainless Steel
Stainless Steel

6
6
6
6
6
6

2.72
2.72
2.72
2.72
2.72
2.72

425
708
991
425
708
991

Accessory Catalog
Number

Description

Use with
VCool Model Capacity

vc0f17
vc0f25

Oil filter
Oil filter

Up to 1700 BTU/Hr.
2500 BTU/Hr.

NEMA Type 12 - 400 BTU/Hr.

NEMA Type 12 900, 1500, 2500 BTU/Hr.

Typical Installation

NEMA Type 4X
900, 1700, 2500 BTU/Hr.

Thermal
Management

Subject to change without notice	

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© 2007 Hoffman Enclosures Inc.

TM-33

Heat Exchangers
Sizing and Selection

Before choosing a thermal management solution, you

need to carefully consider the specifics of your application in addition to the following factors:

• Fan packages and blowers may introduce ambient
contaminants like oil mist and dust into the enclosure

• Heat exchangers (this section) cannot cool below
the ambient temperature

• Closed-loop air conditioners can cool below ambient temperature and reduce humidity without
introducing contaminants

• Simple ventilation devices such as louvers or grilles
and filters are appropriate if maintaining a cool,
constant temperature is not a critical factor

Once you have determined the proper form of cool-

ing equipment you need, selecting the required cooling
capacity is outlined in this section.

When Should You Use a Heat Exchanger?
A heat exchanger is recommended when:
• ambient air contaminants must be kept out of the enclosure
• the integrity of the enclosure must be maintained
• temperature slightly above ambient inside the cabinet is acceptable
• humidity is not a factor

How to Read Heat Exchanger Catalog Numbers
XR 29 18 1 6 012
1

2

3 4 5

6

Subject to change without notice	

Sizing Heat Exchangers
Determine internal heat load in watts.
1 WATT = 3.413 BTU/Hr.
Determine the internal heat load produced by
equipment as total operating watts.

Determine desired temperature difference in degrees F.
1°K ΔT = 1.8°F ΔT °K ΔT = °C ΔT
Determine the ΔT (°F), the temperature difference
between the maximum temperature outside
the enclosure (To) and the maximum desired
temperature inside the enclosure (Ti), which can be
calculated as:
Ti - To = ΔT for heat exchangers.

Determine exposed surface area of the
enclosure in square feet.
AREA (ft 2 )
1 M 2 = 10.76 ft 2
Calculate the exposed surface area of the enclosure
in Square Feet:
AREA (ft 2 ) = 2[(H” x W”) + (H” x D”) + (W” x D”)] ÷ 144
where “H”, “W”, and “D” are the dimensions of the enclosure.

Determine required heat exchanger performance rating.
WATTS ÷ ΔT(°F) - [0.22 x AREA (ft 2 )] = WATTS/°F.
Use this formula to determine the required cooling capacity needed
to maintain the desired operating temperature for your enclosure.
This selection procedure applies to uninsulated, sealed, gasketed
enclosures in indoor locations.
It is recommended that the average “Air In” rating be used when
sizing an application. However, it may be possible to use a lowerrated heat exchanger by locating the most heat sensitive components
in line with the “Air Out” opening of the heat exchanger. The actual
performance rating of any heat exchanger may vary slightly because
of the airflow impedance of the specific electronics configurations.
Heat exchangers are appropriate for applications in which:
• the electronic controls can operate at a temperature above the
ambient temperature
• humidity is not a factor
• ambient air contaminants must be kept out of the enclosure

Selection and Sizing Software

1.	 Heat Exchanger Series
XR = XR Modified Heat Pipe Core heat exchanger
2.	 This is the approximate height of the heat exchanger
(i.e., 29 = 29” high).
3.	 Capacity in W/°F
4.	 1 = 115V, 2 = 230V
5.	 6 = 50/60 Hz
6.	 UL Type.

TM-34

Heat E xchangers

Designed to assist you in determining the most
suitable choices of air conditioners, heat exchangers,
or fans for your application. Download a free copy of
our selection software by visiting our web site:
www.hoffmanonline.com.

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2006 Hoffman Enclosures Inc.

Heat E xchangers

Heat Exchangers
Sizing and Selection
Compact and Mid-Size Heat Exchangers

XR Compact and Mid-Size
Enclosure Air In

Enclosure Air Out

Series

A
in.

mm

in.

B
mm

in.

C
mm

W/ ˚F

W/ ˚K

W/ ˚F

W/ ˚K

xr2004_

20.00

508

7.50

191

3.00

76

4

7

9

16

xr2908_

29.50

749

10.00

254

3.09

79

9

16

30

54

xr2918_

29.66

753

10.24

260

5.92

150

18

32

34

61

xr4724_

47.16

1198

10.24

260

5.92

150

24

43

44

79

xr4735_

47.16

1198

15.24

387

5.92

150

35

63

77

139

xr6055_

59.66

1515

15.24

387

5.92

150

55

99

138

248

xr6084_

59.66

1515

15.24

387

9.92

252

84

151

210

378

Thermal
Management

Subject to change without notice	

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© 2006 Hoffman Enclosures Inc.

TM-35

XR Series Compact and Mid-Size
Heat Exchangers

Heat E xchangers
Bulletin

MCLHE

Application

When Should You Use a Heat Exchanger?

These high-efficiency heat exchangers have a closed-loop design that
separates dirty ambient air from the clean air inside the enclosure
to maintain the integrity of the enclosure and extend equipment life.
Available in 7 sizes, these streamlined units are designed for limited
space applications, especially on narrow or shallow enclosures.

A heat exchanger is recommended when:
• Ambient air contaminants must be kept out of the enclosure
• The integrity of the enclosure must be maintained
• Temperature slightly above ambient inside the cabinet is acceptable
• Humidity is not a factor

Construction
• Unique cores provide high efficiency and high performance heat
transfer
- Modified heat pipe core on XR20 and XR2908
- Counterflow aluminum core on XR2918, XR47, and XR60
• Top-quality ball-bearing fans result in extended reliable service
• Streamlined aesthetics with no visible mounting rails or fasteners.
The slim design allows for mounting to narrow or shallow
enclosures.
• Front cover hinges open for easy access to all components
• Filterless design. The core slides out for easy cleaning
• Mounts vertically or horizontally on front, side or top of enclosure
• Mounts inside or outside the enclosure
• Enclosure air return plenum is provided
• DC voltage available if required. Please contact Hoffman. Service
cord provided includes appropriate plug:
- NEMA 5-15P for 115V units
- NEMA 6-15P for 230V units
• Mounting gaskets and instruction manual furnished

Closed Loop Air Circulation
Within the heat exchanger, the recirculated clean air is kept separate
from the ambient airflow system. This protects the electronic
controls and prevents shutdowns caused by heat, humidity, dust, and
other contaminants.

Ambient airflow
Clean airflow

Finish
Coated with RAL 7035 polyester powder paint inside and out

Industry Standards
Maintains UL/cUL Type 12 or Type 3R rating when properly installed on the
appropriate UL/cUL Type 12 enclosure.
Note: Maintains Type 3R rating when mounted externally and in a vertical
position.
Note: XR200416012 and XR200426012 do not carry Type 3R rating.

UL/cUL Listed, UL File Number SA7402
CE

XR Series

NOTE: Hoffman XR units are directly interchangeable with ProAir models.

TM-36

Subject to change without notice	

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© 2007 Hoffman Enclosures Inc.

Heat E xchangers

XR Series Compact and Mid-Size
Heat Exchangers

Bulletin

MCLHE

Standard Sizes XR Series Compact and Mid-Size Heat Exchangers
Catalog Number

XR200416012b
XR200426012b
XR290816012
XR290826012
XR291816012
XR291826012
XR472416012
XR472426012
XR473516012
XR473526012
XR605516012
XR605526012
XR608416012
XR608426012

AxBxC

in. (mm)
20.00 x 7.50 x 3.00 (508 x 191 x 76)
20.00 x 7.50 x 3.00 (508 x 191 x 76)
29.50 x 10.00 x 3.09 (749 x 254 x 79)
29.50 x 10.00 x 3.09 (749 x 254 x 79)
29.66 x 10.24 x 5.92 (753 x 260 x 150)
29.66 x 10.24 x 5.92 (753 x 260 x 150)
47.16 x 10.24 x 5.92 (1198 x 260 x 150)
47.16 x 10.24 x 5.92 (1198 x 260 x 150)
47.16 x 15.24 x 5.92 (1198 x 387 x 150)
47.16 x 15.24 x 5.92 (1198 x 387 x 150)
59.66 x 15.24 x 5.92 (1515 x 387 x 150)
59.66 x 15.24 x 5.92 (1515 x 387 x 150)
59.66 x 15.24 x 9.92 (1515 x 387 x 252)
59.66 x 15.24 x 9.92 (1515 x 387 x 252)

Voltage

Hz

Phase

Full Load
Amps

115
230
115
230
115
230
115
230
115
230
115
230
115
230

50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60

1
1
1
1
1
1
1
1
1
1
1
1
1
1

0.6
0.3
0.6
0.3
1.0
0.6
1.5
0.8
1.5
0.8
6.7
3.4
6.7
3.4

Max Amb.
Temp.
° F/°C

Enclosure
Enclosure Air Ina Air Out a
W/°F (W/°K)
W/°F (W/°K)

Shipping
Weight
lb./kg

140/60
140/60
140/60
140/60
140/60
140/60
140/60
140/60
140/60
140/60
140/60
140/60
140/60
140/60

4 (7)
4 (7)
8 (14)
8 (14)
18 (32)
18 (32)
24 (43)
24 (43)
35 (63)
35 (63)
55 (99)
55 (99)
84 (151)
84 (151)

16/7
16/7
27/12
27/12
34/16
34/16
51/24
51/24
63/29
63/29
91/42
91/42
115/53
115/53

9 (16)
9 (16)
30 (54)
30 (54)
34 (61)
34 (61)
44 (79)
44 (79)
77 (139)
77 (139)
138 (248)
138 (248)
210 (378)
210 (378)

a
The “enclosure air in” efficiency rating is based on air entering the heat exchanger from the enclosure. The “enclosure air out” efficiency rating is based on air exiting the heat exchanger
into the enclosure. All XR exchanger units are rated at 100°F/38°C ambient temperatures with 1500W internal heat load. Heat exchanger efficiency will decrease as ambient temperature
and/or internal heat load decreases.
b
XR200416012 and XR200426012 do not carry Type 3R rating.

Thermal
Management

Application Tip
Locate heat-sensitive components in line with the “Air Out” opening
of the heat exchanger.

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-37

XR Series Compact and Mid-Size
Heat Exchangers

Heat E xchangers
Bulletin

MCLHE

XR20, XR2908 Heat Exchangers Drawing

XR2918 and XR4724 Heat Exchangers

XR4735 and XR60 Heat Exchangers

TM-38

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

XR Series Compact and Mid-Size
Heat Exchangers

Heat E xchangers
Bulletin

MCLHE

Enclosure Cutouts

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-39

Fans, Blowers, Louvers, and Vents
Sizing and Selection

Fans , Blowers ,
Louvers , and Vents

Determine the required fan/blower size
(volume airflow):
Step 1 Select the product family which best fits your
application:
• Compact Cooling Fans (economical fan with no filter)
• Cooling Fan Packages (economical fan package with low-density
filter)
• Type 12 Cooling Fan Package
• Filter Fan Packages (high-tech fan package with high-density filter,
for IP54 rating)
• Blower Package (centrifugal blower package with filter for denselypacked enclosures)
Step 2 Determine the internal heat load in WATTS.
1 WATT = 3.413 BTU/Hr.
Step 3 Determine desired temperature
difference in degrees F.
Determine the ΔT (F), the temperature difference
between the maximum temperature outside
the enclosure (To) and the maximum desired
temperature inside the enclosure (Ti).
To - Ti = ΔT for heat exchangers and fans
NOTE: 1°C ΔT = 1.8°F ΔT
Step 4 Plot your application using the selection graph to the
right.
• Find WATTS (internal heat load) on the vertical scale
• Draw a horizontal line across to the intersection point with the
diagonal line representing your ΔT
• Extend a vertical line down to the horizontal scale to determine
your CFM requirement
• Continue the vertical line to identify applicable fan or blower
A sample line is shown in red for a 400 watt heat load and a ΔT
of 20°F, which indicates a 70 CFM airflow requirement.
Step 5
Make sure the line intersects the bar which includes the exhaust
grille kit(s) from the product family chosen in Step 1. Remember,
actual air flow going through your enclosure may be less depending
on how densely packed your enclosure is.
Note: Fan output (CFM) is reduced by 10-15% when operated at 50Hz.

Cooling Fan and Blower Selection
CFM

a

a

Filter Fan Packages

29

SF05

57

SF09

126

SF10

250

SF13

CFMa

Cooling Fan Packages

55

TFP41, TFP42

140

TFP61, TFP62

215

TFP101, TFP102

CFMa

Blower Package

260

ADB275

CFM with one exhaust grille @ 60Hz

Selection and Sizing Software
Designed to assist you in determining the most
suitable choices of air conditioners, heat exchangers,
or fans for your application. Download a free copy
of our selection software by visiting our web site:
www.hoffmanonline.com.

How to Read Filter Fan Package Catalog Numbers
SF - 05 1 6 - 001

Filter Fans
1.	 Filter fan
2.	 Approximate size of fan frame (i.e., 05 = 5”)
3.	 1 = 115 Volt, or 2 = 230 Volt
4.	 6 = 50/60 Hz
5.	 Standard Model

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

2 3 4

5

EG - 0500 - 001

Exhaust Grille Kit
1.	 Exhaust grille kit
2.	 Approximate size of fan frame (i.e., 05 = 5”)
3.	 Standard model

TM-40

1

1

2

3

© 2006 Hoffman Enclosures Inc.

Fans, Blowers, Louvers, and Vents
Sizing and Selection
Compact Cooling Fans
Catalog No.

Diameter
in. (mm)

a4axfn

—

4.69 (119)

1.52 (39)

100 (170)

a6axfn

6.72 (171)

—

2.00 (51)

240 (408)

a10axfn

10.00 (254)

—

3.50 (89)

560 (951)

Cooling Fan Packages

Square
in. (mm)

Fans , Blowers ,
Louvers , and Vents

Depth
in. (mm)

CFM@60Hz
(M3 /Hr.)

Catalog No.

Diameter
in. (mm)

Square
in. (mm)

Depth
in. (mm)

CFM@60Hz
(M3 /Hr.)

tfp41

6.29 (160)

7.37 (187)

2.65 (67)

55 (95)

tfp61

7.80 (198)

8.87 (225)

3.75 (95)

140 (238)

tfp101

11.81 (300

12.99 (330)

5.25 (133)

215 (370)

Depth
in. (mm)

CFM@60Hz
(M3 /Hr.)

NOTE: CFMs with single exhause grille installed

Filter Fan Packages
Catalog No.

Diameter
in. (mm)

Square
in. (mm)

sf05

5.83 (148)

5.83 (148)

2.76 (70)

29 (49)

sf09

8.03 (204)

8.03 (204)

3.78 (96)

57 (97)

sf10

9.84 (250)

9.84 (250)

5.20 (132)

126 (214)

sr13

12.72 (323)

12.72 (323)

6.09 (155)

250 (425)

NOTE: CFMs with single exhause grille installed

Blower Package
Catalog No.

Diameter
in. (mm)

Square
in. (mm)

Depth
in. (mm)

CFM@60Hz
(M3 /Hr.)

adb275

5.75 (146)

19.00 (483)

7.25 (184)

230/275 (135/162)

Thermal
Management

Louvers and Vents

Subject to change without notice	

Three styles of louvers and vents provide passive cooling.

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2006 Hoffman Enclosures Inc.

TM-41

Fans , Blowers ,
Louvers , and Vents

Compact Cooling Fans
Rev. A	

Bulletin

D85

7/07

Construction
• Dynamically balanced impellers molded from polycarbonate
material
• One finger guard is furnished (an additional finger guard is
recommended for maximum safety)
• All mounting hardware is provided
NOTE: Fan bracket and additional finger guards must be
purchased separately,
• 240 and 560 CFM fans have ball bearing construction and split
capacitor motors
• Fans have leadwires with ends stripped 1/2 inch (12 millimeters) or
6 ft (1.83m) cord with polarized plug for power connections.
Consult your local Hoffman sales office for information on modifications to this
product.

Finish

Application
Designed for use in enclosures where space is limited and reliable
cooling is required. Powered by 115 volt or 230 volt AC, 60/50 Hz
single-phase motors and available in three sizes with nominal airflows
of 100, 240, and 560 cubic feet per minute (CFM). These fans are
ideal for applications where compact and quiet service is desired.

Fan housing is black.

Industry Standards
UL Component Recognized
CSA certified

Features

Accessories

• Rigid housing eliminates breakage and grounding problems
• Maximum operating temperature is 158º F (70º C)
• 4-inch fan is thermally protected and uses permanently lubricated
ball bearings
• 6- and 10-inch fans have ball-bearing construction and splitcapacitor motors
• Split-capacitor motors are thermally protected to avoid premature
failure
• Engineered for 50,000 hours of continuous operation without
lubrication or service

Fan Brackets
Finger Guard
Temperature Control Switch

Installation
Can be installed on any surface of an enclosure. With the addition of
accessory fan brackets, Compact Cooling Fans can also be installed
in any position inside the enclosure for spot cooling or air circulation.

Technical/Performance Data for Compact Cooling Fans
Catalog
Number
A4AXFNGQ
A4AXFNPG
A4AXFN
A4AXFN2
A6AXFNGQ
A6AXFNPG
A6AXFN
A6AXFN2
A10AXFNPG
A10AXFN
A10AXFN2

TM-42

Nominal Size

Power
Connection

Voltage
(VAC)

Amps @
50/60 Hz

Watts @
50/60 Hz

CFM @
50/60 Hz

4 in. Quiet Fan
4 in.
4 in.
4 in.
6 in. Quiet Fan
6 in.
6 in.
6 in.
10 in.
10 in.
10 in.

Power cord
Power cord
Leadwires
Leadwires
Power cord
Power cord
Leadwires
Leadwires
Power cord
Leadwires
Leadwires

115
115
115
230
115
115
115
230
115
115
230

.09/.08
.26/.21
.26/.21
.14/.11
.16/.19
.45/36
.45/.36
.23/.18
1.0/.88
1.0/.88
.47/.43

6/5
17/15
17/15
16/14
16/18
36/32
36/32
39/35
36/36
36/36
36/36

46/49
85/100
85/100
85/100
85/102
200/240
200/240
200/240
480/560
480/560
480/560

Subject to change without notice	

Fan Size

Fan
Depth

Max. Motor
Operating RPM @ Noise SIL
50/60 Hz
(db)

4.69 in. square
4.69 in. square
4.69 in. square
4.69 in. square
6.77 in. diameter
6.77 in. diameter
6.77 in. diameter
6.77 in. diameter
10.00 in. diameter
10.00 in. diameter
10.00 in. diameter

1.52
1.52
1.52
1.52
1.50
1.50
1.50
1.50
3.50
3.50
3.50

1350/1450
2415/2900
2415/2900
2415/2900
1400/1650
2670/3200
2670/3200
2670/3200
1350/1650
1350/1650
1350/1650

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

27/28
37/41
37/41
37/41
35/38
50/56
50/56
50/56
45.8/49
45.8/49
45.8/49

© 2007 Hoffman Enclosures Inc.

Fans , Blowers ,
Louvers , and Vents

Compact Cooling Fans

Bulletin

D85

Cutout Dimensions Compact Cooling Fans
Catalog
Number

Nominal
Size

Power
Connection

Voltage

A
(in.)

A
(mm)

D
(in.)

D
(mm)

E
(in.)

E
(mm)

J
(in.)

J
(mm)

K
(in.)

K
(mm)

L
(in.)

L
(mm)

M
(in.)

M
(mm)

A4AXFNPG
A4AXFNGQ
A4AXFN
A4AXFN2
A6AXFNPG
A6AXFNGQ
A6AXFN
A6AXFN2
A10AXFNPG
A10AXFN
A10AXFN2

4 inch
4 inch
4 inch
4 inch
6 inch
6 inch
6 inch
6 inch
10 inch
10 inch
10 inch

Power cord
Power cord/Quiet
Leadwires
Leadwires
Power cord
Power cord/Quiet
Leadwires
Leadwires
Power cord
Leadwires
Leadwires

115
115
115
230
115
115
115
230
115
115
230

4.62
4.62
4.62
4.62
5.88
5.88
5.88
5.88
9.00
9.00
9.00

117
117
117
117
149
149
149
149
229
229
229

4.12
4.12
4.12
4.12
—
—
—
—
6.88
6.88
6.88

105
105
105
105
—
—
—
—
175
175
175

2.06
2.06
2.06
2.06
—
—
—
—
3.44
3.44
3.44

52
52
52
52
—
—
—
—
87
87
87

4.12
4.12
4.12
4.12
—
—
—
—
6.88
6.88
6.88

105
105
105
105
—
—
—
—
175
175
175

2.06
2.06
2.06
2.06
—
—
—
—
3.4
3.44
3.44

52
52
52
52
—
—
—
—
87
87
87

—
—
—
—
3.19
3.19
3.19
3.19
—
—
—

—
—
—
—
81
81
81
81
—
—
—

—
—
—
—
6.38
6.38
6.38
6.38
—
—
—

—
—
—
—
162
162
162
162
—
—
—

Fan Cords
Used to
power
compact
cooling fans
when positive
ground of
the cabinet
case is
required. Available with connectors for one or two fans. Five-foot
(1.52 meter) cord with grounded three-prong plug. Fits A4AXFNPG,
A6AXFNPG, A10AXFNPG, A4AXFNGQ, and AGAXFNGQ.

Catalog Number

Description

ACORD1
ACORD2

One connector
Two connectors

Fan Brackets
Designed to provide easy
mounting of Hoffman cooling
fans on enclosure panels.
Brackets can be used for general
air circulation or to direct air at
problem areas. All sizes are .100
inch aluminum. Package quantity
of 1 bracket. Fans must be
ordered separately.

Used with
Fan Catalog Number

AxBxC
in. (mm)

ABRKT4

A4AXFNPG, A4AXFNGQ,
A4AXFN, or A4AXFN2
A6AXFNPG, A6AXFNGQ,
A6AXFN, or A6AXFN2
A10AXFNPG, A10AXFNGQ,
A10AXFN, or A10AXFN2

6.00 x 5.00 x 1.50
(152 x 127 x 38)
10.00 x 6.88 x 2.00
(254 x 175 x 51)
13.5 x 10.12 x 3.5
(343 x 257 x 89)

ABRKT6
ABRKT10

D (in.)

D (mm) E (in.)

E (mm) F (in.)

F (mm) G (in.)

G (mm) H (in.)

H (mm) J (in.)

J (mm)

3.50

89

—

—

3.00

76

1.00

25

0.38

10

0.62

16

6.50

51

—

—

5.00

127

0.94

24

0.38

10

1.00

25

8.50

216

4.00

102

4.00

102

1.06

27

0.62

16

2.00

51

Finger Guards
One finger guard is included with
each Compact Cooling Fan and
Cooling Fan Package. Additional
finger guards can be mounted
on either side of the fan for
maximum safety. All guards are
chrome-plated and meet UL 507
.25-inch plug gauge test.

Subject to change without notice	

Catalog Number

Use on
Compact Cooling Fan Catalog Numbers

AGARD4
AGARD6
AGARD10

A4AXFNPG, A4XFNGQ, A4AXFN, A4AXFN2
A6AXFNPG, A6AXFNGQ, A6AXFN, A6AXFN2
A10AXFNPG, A10AXFNQR, A10AXFN, A10AXFN2

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-43

Thermal
Management

Catalog
Number

Cooling Fan and Exhaust Packages

Application
Designed for use in enclosures where space is limited and reliable
filtered airflow is required. The Cooling Fan Package is the air inlet
of a cooling system. It requires at least one Exhaust Package of the
same size and type rating to provide the outlet. Where positive air
flow through the enclosure is not required, Exhaust Packages can be
used on both the inlet and outlet.
NOTE: fan and exhaust packages must be ordered separately.

The Cooling Fan Package is available for both Type 1 and Type 12
enclosures. Type 1 is recommended in UL Type 1 environments
where the ambient air is cool and clean. Type 12 is recommended
in UL Type 12 environments where the ambient air is cool and
may contain small amounts of dust, foreign bodies, and splashing
water. For both Type 1 and Type 12 systems a monthly maintenance
schedule is recommended to ensure optimal cooling performance.
The cooling fan and exhaust packages come with RAL 7035
composite or brushed stainless steel grilles; replacement black ABS
composite and brushed stainless steel grilles are available separately.
The optional EMC Upgrade Kit prepares the fan and exhaust
packages for use where EMC protection is required.

Fans , Blowers ,
Louvers , and Vents
Bulletin

D85

• Durable composite air plenum and grille takes up minimal
enclosure space. Plenum permits even airflow through the filter
for maximum filtering efficiency. An integral and removable finger
guard on either side of the plenum adds safety and convenience.
• Air filters can be accessed for cleaning from outside the enclosure
• Rigid fan housing eliminates breakage and grounding problems
• Engineered for 50,000 hours of continuous operation without
lubrication or service

Construction
• Dynamically-balanced fan impellers molded from polycarbonate
material
• 4-in. fan is thermally protected and uses permanently-lubricated
ball bearings
• 6- and 10-in. fans have ball bearing construction and split-capacitor
motors that are thermally protected to avoid premature failure
• Fans have leadwires for power connection with ends stripped 1/2in. (12 mm)
• All mounting hardware and installation instructions are furnished

Filters

Installation

Standard Type 1 air filters are washable foam.

Fan and exhaust packages can be installed on any surface of an
enclosure. They are most effective when the fan assembly is located
on a lower panel of the enclosure and the exhaust grille is positioned
near the top of the opposite side. This installation assists heat
transfer by causing slightly more turbulence and also prolongs the
working life of the fan since it is located in the path of the cooler air
entering the enclosure.
The height and width of the cooling fans and exhaust grilles can be
rotated 90° for mounting on narrow enclosures. Allow adequate
clearance for servicing the fan when equipment is installed inside the
enclosure and for replacing filters on both the fan and the exhaust.
Cutout dimensions for both the fan and the exhaust are shown in the
order table. Order the fan and exhaust packages separately.

Note: Type 12 air filters are not washable.

Features

Temperature Control Switch
Aluminum Type 1 and Hi-Density Type 12 Filters
EMC Upgrade Kit
Grille Options:
Stainless Steel
Black ABS Plastic

• Cooling Fan Package includes fan, air filter, composite air plenum,
finger guard, and grille
• Exhaust Package includes air filter, filter retainer with integral
finger guard, and grille
• EMC Upgrade Kit includes a grille standoff collar and a special
EMC shielding grille. It can be used with either fan or exhaust
packages that have composite grilles. Cannot be used with stainless
steel grilles.
• Optional grilles, available in both brushed stainless steel and black
ABS plastic, can be used with either the fan or exhaust package
• Washable foam (Type 1) or disposable (Type 12) filter in both fan
and exhaust packages provide good arrestment of airborne dirt
with minimal pressure drop. Optional washable aluminum air filter
is available for Type 1 applications.

TM-44

Subject to change without notice	

Finish
Fan housing, composite plenum, and grille are RAL 7035 light gray.
Stainless steel grilles have brushed finish. ABS composite grille is
black.

Industry Standards
UL 508A Component Recognized, File Number E61997
CSA certified (fan only)
CE

Accessories

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Fans , Blowers ,
Louvers , and Vents

Cooling Fan and Exhaust Packages

Bulletin

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Standard Sizes and Cutout Dimensions Cooling Fan and Exhaust Packages
Catalog
Number
TFP41
TFP41SS
TFP41UL12
TFP42
TFP42SS
TFP42UL12
TFP61
TFP61SS
TFP61UL12
TFP62
TFP62SS
TFP62UL12
TFP101
TFP101SS
TFP101UL12
TFP102
TFP102SS
TFP102UL12

AxBxC

in. (mm)
6.29 x 7.37 x 2.65
(160 x 187 x 67)
6.29 x 7.37 x 2.65
(160 x 187 x 67)
6.29 x 7.37 x 2.65
(160 x 187 x 67)
6.29 x 7.37 x 2.65
(160 x 187 x 67)
6.29 x 7.37 x 2.65
(160 x 187 x 67)
6.29 x 7.37 x 2.65
(160 x 187 x 67)
7.80 x 8.87 x 3.75
(198 x 225 x 95)
7.80 x 8.87 x 3.75
(198 x 225 x 95)
7.80 x 8.87 x 3.75
(198 x 225 x 95)
7.80 x 8.87 x 3.75
(198 x 225 x 95)
7.80 x 8.87 x 3.75
(198 x 225 x 95)
7.80 x 8.87 x 3.75
(198 x 225 x 95)
11.81 x 12.99 x 5.25
(300 x 330 x 133)
11.81 x 12.99 x 5.25
(300 x 330 x 133)
11.81 x 12.99 x 5.25
(300 x 330 x 133)
11.81 x 12.99 x 5.25
(300 x 330 x 133)
11.81 x 12.99 x 5.25
(300 x 330 x 133)
11.81 x 12.99 x 5.25
(300 x 330 x 133)

Material and Type
Composite Grille
UL 508 Type 1
Stainless Steel Grille
UL 508 Type 1
Composite Grille
UL 508 Type 12
Composite Grille
UL 508 Type 1
Stainless Steel Grille
UL 508 Type 1
Composite Grille
UL 508 Type 12
Composite Grille
UL 508 Type 1
Stainless Steel Grille
UL 508 Type 1
Composite Grille
UL 508 Type 12
Composite Grille
UL 508 Type 1
Stainless Steel Grille
UL 508 Type 1
Composite Grille
UL 508 Type 12
Composite Grille
UL 508 Type 1
Stainless Steel Grille
UL 508 Type 1
Composite Grille
UL 508 Type 12
Composite Grille
UL 508 Type 1
Stainless Steel Grille
UL 508 Type 1
Composite Grille
UL 508 Type 12

Use with
Exhaust Grille

Nominal
Fan Size

D
(in.)

D
(mm)

F
(in.)

F
(mm)

H
(in.)

H
(mm)

T
(in.)

T
(mm)

W
(in.)

W
(mm)

TEP4

4 inch

0.45

11

5.66

144

0.77

20

4.12

105

6.39

162

TEP4SS

4 inch

0.45

11

5.66

144

0.77

20

4.12

105

6.39

162

TEP4UL12

4 inch

0.45

11

5.66

144

0.77

20

4.12

105

6.39

162

TEP4

4 inch

0.45

11

5.66

144

0.77

20

4.12

105

6.39

162

TEP4SS

4 inch

0.45

11

5.66

144

0.77

20

4.12

105

6.39

162

TEP4UL12

4 inch

0.45

11

5.66

144

0.77

20

4.12

105

6.39

162

TEP6

6 inch

0.49

12

7.16

182

1.33

34

4.50

114

7.89

200

TEP6SS

6 inch

0.49

12

7.16

182

1.33

34

4.50

114

7.89

200

TEP6UL12

6 inch

0.49

12

7.16

182

1.33

34

4.50

114

7.89

200

TEP6

6 inch

0.49

12

7.16

182

1.33

34

4.50

114

7.89

200

TEP6SS

6 inch

0.49

12

7.16

182

1.33

34

4.50

114

7.89

200

TEP6UL12

6 inch

0.49

12

7.16

182

1.33

34

4.50

114

7.89

200

TEP10

10 inch

0.55

14

11.16

283

2.14

54

6.88

175

11.89

302

TEP10SS

10 inch

0.55

14

11.16

283

2.14

54

6.88

175

11.89

302

TEP10UL12

10 inch

0.55

14

11.16

283

2.14

54

6.88

175

11.89

302

TEP10

10 inch

0.55

14

11.16

283

2.14

54

6.88

175

11.89

302

TEP10SS

10 inch

0.55

14

11.16

283

2.14

54

6.88

175

11.89

302

TEP10UL12

10 inch

0.55

14

11.16

283

2.14

54

6.88

175

11.89

302

An intake grille and filter are included with each Cooling Fan Package. Order at least one Exhaust Package separately for each installation

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-45

Fans , Blowers ,
Louvers , and Vents

Cooling Fan and Exhaust Packages

Bulletin

D85

Technical Performance Data for Cooling Fan Packages
Catalog
Number

CFMa
50/60 Hz

Watts
50/60 Hz

Voltage

Hz

Amps
50/60 Hz

Max. Operating
Temp. °F

Max. Operating
Temp. °C

Max. Operating
Noise SIL db

Weight
(lb.)

Weight
(kg.)

TFP41
TFP41SS
TFP41UL12
TFP42
TFP42SS
TFP42UL12
TFP61
TFP61SS
TFP61UL12
TFP62
TFP62SS
TFP62UL12
TFP101
TFP101SS
TFP101UL12
TFP102
TFP102SS
TFP102UL12

46/55
46/55
21/25
46/55
46/55
21/25
117/140
117/140
50/60
117/140
117/140
50/60
180/215
180/215
63/75
180/215
180/215
63/75

17/15
17/15
17/15
16/14
16/14
16/14
36/32
36/32
36/32
39/35
39/35
39/35
64/80
64/80
64/80
64/80
64/80
64/80

115
115
115
230
230
230
115
115
115
230
230
230
115
115
115
230
230
230

50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60

.26/.21
.26/.21
.26/.21
.14/.11
.14/.11
.14/.11
.45/.36
.45/.36
.45/.36
.23/.18
.23/.18
.23/.18
.58/.70
.58/.70
.58/.70
.29/.35
.29/.35
.29/.35

158
158
158
158
158
158
158
158
158
158
158
158
167
167
167
167
167
167

70
70
70
70
70
70
70
70
70
70
70
70
75
75
75
75
75
75

37/41
37/41
37/41
37/41
37/41
37/41
50/56
50/56
50/56
50/56
50/56
50/56
54/61
54/61
54/61
54/61
54/61
54/61

4.2
4.2
4.2
4.3
4.3
4.3
5.3
5.3
5.3
5.4
5.4
5.4
12.0
12.0
12.0
11.4
11.4
11.4

1.90
1.90
1.90
1.95
1.95
1.95
2.40
2.40
2.40
2.45
2.45
2.45
5.45
5.45
5.45
5.17
5.17
5.17

a

CFM with single exhaust grille installed.

Performance Curve for a 4”
Cooling Fan Package @ 60 Hz

4 in. Cooling Fan Package
4 in. Exhaust Package
Two 4 in. Exhaust Packages
4 in. Type 12 Cooling Fan Package

TM-46

Subject to change without notice	

Performance Curve for a 6”
Cooling Fan Package @ 60 Hz

Performance Curve for a 10”
Cooling Fan Package @ 60 Hz

6 in. Cooling Fan Package
6 in. Exhaust Package
Two 6 in. Exhaust Packages
6 in. Type 12 Cooling Fan Package

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

10 in. Cooling Fan Package
10 in. Exhaust Package
Two 10 in. Exhaust Packages
10 in. Type 12 Cooling Fan Package

© 2007 Hoffman Enclosures Inc.

Cooling Fan and Exhaust Packages

Fans , Blowers ,
Louvers , and Vents
Bulletin

D85

EMC Fan/Grille Upgrade Kit

Filters

With the addition of this kit, the cooling fan and exhaust packages
are upgraded to provide EMC (electromagnetic compatibility)
protection. Consult Hoffman for shielding effectiveness (dB
attenuation vs. frequency).

Standard Type 1 air filters are washable foam.
Note: Type 12 air filters are not washable.

NOTE: Separate kits must be installed on both the inlet and outlet. Cooling fan
and exhaust package must be ordered separately. EMC upgrade kit will not
work with stainless steel grille option.

Catalog Number

Fits Cooling Fan Package
Catalog Number

Fits Exhaust Grille
Catalog Number

T4EMC
T6EMC
T10EMC

TFP41/TFP42
TFP61/TFP62
TFP101/TFP102

TEP4
TEP6
TEP10

Optional Grilles and Replacement Filters
Optional grilles offer the
choice of stainless steel or
black ABS plastic grilles replace
the standard RAL 7035 gray
composite or stainless steel
grilles on both fan and exhaust
packages. Standard replacement
filters are washable foam (Type
1) or disposable (Type 12). To
maintain UL Type 12 rating on
the enclosure, UL Type 12 filters
must be used on both the inlet and outlet. Washable aluminum
filters are also available. Aluminum filters are compatible with Type 1
systems only.

Fits Fan and
Exhaust Grille Size
in. (mm)

Brushed stainless steel grille

4 inch

TG4B

Black ABS plastic grille

4 inch

AFLTR4

4 inch
4 inch

—

4 inch

—

TG6SS

Type 1 filter replacement
(5/package)
Aluminum filter replacement
(5/package)
Type 12 filter replacement
(5/package)
Brushed stainless steel grille

6.29 x 7.31 x .81
(160 x 186 x 21)
6.29 x 7.37 x .81
(160 x 187 x 21)
—

6 inch

TG6B

Black ABS plastic grille

6 inch

AFLTR6

6 inch
6 inch

—

6 inch

—

TG10SS

Foam filter replacement
(5/package)
Aluminum filter replacement
(5/package)
UL 12 filter replacement
(5/package)
Brushed stainless steel grille

7.80 x 8.81 x .75
(198 x 224 x 19)
7.80 x 8.87 x .49
(198 x 225 x 12)
—

10 inch

TG10B

Black ABS plastic grille

10 inch
10 inch

11.81 x 12.92 x .75
(300 x 328 x 19)
11.81 x 12.99 x .75
(300 x 330 x 19)
—

10 inch

—

10 inch

—

TG4SS

AFLTR4AL
TFLT4UL12

AFLTR6AL
TFLT6UL12

AFLTR10

Foam filter replacement
(5/package)
AFLTR10AL Aluminum filter replacement
(5/package)
TFLT10UL12 UL 12 filter replacement
(5/package)

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-47

Thermal
Management

Description

Fits Fan and
Exhaust
Nominal Size

Catalog
Number

Fans , Blowers ,
Louvers , and Vents

Filter Fan Packages

Bulletin

MCLY

Industry Standards
UL Component Recognized, UL File Number SF165154
CSA Certified (fan only)
CE

Installation
Fan Package should be mounted near bottom of enclosure with the
exhaust near the top of the opposite side. This will ensure complete
airflow distribution through the entire enclosure.

Added Protection
With the supplied filter sealing gasket installed on
both the filter fan package and the exhaust grille
kit, an IP54 rating can be maintained according to
DIN 40050. This rating is defined as protecting
internal electronics from dust, foreign bodies,
and splashing water.

Replacement Filter Sealing Gasket and Filters
Application
Permits densely filtered ambient air to pressurize enclosure so that
ambient air cannot be drawn in through poorly sealed doors, panels,
and wireways. Positive airflow provides a simple and effective way to
protect enclosed electronics from heat and condensation. Ideal for
clean environments.

Construction
Simple, snap-in mounting
Slim fan grille protrudes only .25” or less from enclosure mount
Fan is completely installed inside plastic housing
Housings are made of heat resistant, self-extinguishing ABS; color
RAL 7042 gray (grille only)
• Air filter is accessible for cleaning or replacement from outside the
enclosure by simply removing the grille cover
• Easy to install. Mounting hardware, full-size mounting template,
drawings, and installation instructions furnished.
• Filter Fan Package includes the fan with grille, filter, and filter
sealing gasket. Exhaust Grille Kits are offered for each Filter Fan
Package and must be ordered separately. Filter sealing gaskets are
supplied with both Filter Fan Package and Exhaust Grille Kit to
achieve an IP54 rating.
•
•
•
•

Filter Sealing Gasket
Catalog Number

Replacement Filter

To Fit Fan Packages
and Exhaust Grille Kits

g050000

10100060

SF0516002
SF0526002
SG0500002

g090000

10100061

SF0916002
SF0926002
SF0900002

g100000

10100062

SF1016002
SF1026002
SG1000002

g130000

10100063

SF1316002
SF1326002
SF1300002

Filtered Cooling
Filter fan packages are appropriate for applications in
which:
• The electronic controls can operate at a
temperature differential slightly above the ambient
temperature
• Humidity is not a factor
• The quality of filtered ambient air is acceptable to
be drawn into the enclosure for cooling

Series SF-05 Filter Fan Package

TM-48

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Fans , Blowers ,
Louvers , and Vents

Filter Fan Packages

Bulletin

MCLY

Standard Sizes Filter Fan Packages
Service Temp.
Catalog
Number

AxBxC
in. (mm)

Replacement Filter Voltage Hz

SF0516002 5.83 x 5.83 x 2.76
10100060 115
50/60
(148 x 148 x 70)
SF0526002 5.83 x 5.83 x 2.76
10100060 230
50/60
(148 x 148 x 70)
SF0916002 8.03 x 8.03 x 3.78
10100061 115
50/60
(204 x 204 x 96)
SF0926002 8.03 x 8.03 x 3.78
10100061 230
50/60
(204 x 204 x 96)
SF1016002 9.84 x 9.84 x 5.20
10100062 115
50/60
(250 x 250 x 132)
SF1026002 9.84 x 9.84 x 5.20
10100062 230
50/60
(250 x 250 x 132)
SF1316002 12.72 x 12.72 x 6.09 10100063 115
50/60
(323 x 323 x 155)
SF1326002 12.72 x 12.72 x 6.09 10100063 230
50/60
(323 x 323 x 155)
a
Free air, CFM
b
With 1 exhaust grille kit, CFM. Order exhaust grille kit separately.
NOTE: Actual airflow may vary depending on system impedence

Full
Load Motor
Phase Amps RPM

Ship. Wt.

Exhaust
Grille Kit
Low Low High High Noise
Model
(°F) (°C) (°F) (°C) dB (A) (lbs.) (kgs) Number

Air
Flowa Air Flowb

1

.22

2650/3100 14

-10

131

55

42

1.87

.85

SG0500002 39

29

1

.11

2650/3100 14

-10

131

55

42

1.87

.85

SG0500002 39

29

1

.22

2650/3100 14

-10

131

55

51

2.56

1.16

SG0900002 75

57

1

.11

2650/3100 14

-10

131

55

51

2.56

1.16

SG0900002 75

57

1

.53

2760/3030 14

-10

131

55

52

4.39

1.99

SG1000002 162

126

1

.30

2760/3030 14

-10

131

55

52

4.39

1.99

SG1000002 162

126

1

.89

2550/2800 14

-10

131

55

61

8.38

3.80

SG1300002 376

250

1

.45

2550/2800 14

-10

131

55

61

8.38

3.80

SG1300002 376

250

Series SF-09 Filter Fan Package

Series SF-10 Filter Fan Package

Thermal
Management

Series SF-13 Filter Fan Package

Subject to change without notice	

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© 2007 Hoffman Enclosures Inc.

TM-49

Outdoor Filter Fan and Exhaust Package

Rev. A 5/07

Application

Finish

For use in outdoor or indoor applications where warm air must be
dissipated.

Light gray plastic, UL94H-B

Fans , Blowers ,
Louvers , and Vents
Bulletin

D85

Industry Standards

Features
• Ball bearing axial fan, service life 50,000 hours at 77˚F (25˚C) and
65 percent RH
• Aluminum fan body, plastic impeller
• Airflow 11.8 cfm (20m3 /h) free blowing
• High-impact plastic is highly weatherproof and resistant to
UV light
• F5 filter mat is easy to remove from outside for cleaning and
changing
• Lockable door in hood for security
• Two-sided tape provided for mounting ease
• Filter hood permanently fixed to enclosure from inside using
screws
• 2 lead wires, 3.94 inches (100mm) long, with pressure clamps,
14 gauge max. (2.5mm)
• Synthetic filter material, temperature resistant to 212˚F (100˚C),
self-extinguishing class F1, moisture resistant to 100 percent RH
• Filter mat: Fine grade F5 to DIN EN779
filtering degree: 98 percent of particles larger than 10μm (10
microns)

CE
cURus File No. E234324
NEMA Type 3R
IEC/EN 60529, IP55

Standard Sizes Outdoor Filter Fan and Exhaust Package
Enclosure Cutout

External Mounting Depth

Internal Mounting Depth

Catalog Number

in.

mm

Description

in.

mm

in.

mm

Voltage

AOFF118

4.92 x 4.92

125 x 125 (+.4)

Filter Fan

2.56

65

2.44

62

120 VAC, 60 Hz

AOEFG118

4.92 x 4.92

125 x 125 (+.4)

Exhaust Filter

2.56

65

0.71

18

NOTE: AOEFG118 does not include a fan.

Replacement Filter
Catalog Number

Filter Mat 122 x 122mm

AOFILTER

F5 (3 per package)

TM-50

Subject to change without notice	

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© 2007 Hoffman Enclosures Inc.

Outdoor Filter Fan and Exhaust Package

Fans , Blowers ,
Louvers , and Vents
Bulletin

D85

Thermal
Management

Subject to change without notice	

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© 2007 Hoffman Enclosures Inc.

TM-51

Blower Fan Package;
Fan and Blower Accessories

Fans , Blowers ,
Louvers , and Vents
Bulletin

MCLY

Finish
Blower housing is black enamel. Grille is brushed stainless steel.

Industry Standards
UL Component Recognized, UL File Number E61997
EIA RS-310-D
CSA certified (blower motor only)

Accessories
Exhaust Grille and Filter
Filter Adhesive
Temperature Control Switch

Application
Provides a maximum amount of cooling air while occupying a
minimum of space. Cool air enters through the intake grille and filter
and is discharged into the enclosure. Blower operates on 115 volt
AC, 60/50 Hertz, single phase input power. The unit delivers 275
cubic feet per minute (CFM) of air at zero static pressure.

Performance Curve for ADB275 Blower

Installation
Can be mounted as shown below or installed on standard 19.00
inch (483mm) racks. The unit is self-supporting with 16 gauge steel
flanges notched per EIA RS-310-D. Two openings are required in the
enclosure for air to flow in and out. Refer to drawings for size and
location of openings. An exhaust grille and filter package (catalog
number AEXGR275) is required and must be ordered separately.

Construction
• 16 gauge steel housing
• Attractive stainless steel intake grille is easily removed with two
captive thumbnuts
• Washable aluminum filter provides good arrestment of airborne
dirt with minimal pressure drop. Filter has 12 layers of expanded
aluminum which provides hundreds of adhesive-coated baffle
surfaces for trapping dirt and dust particles. (To achieve best
results, Hoffman Filter Adhesive is recommended).
• Single phase motor powers the statically balanced blower. Motor is
thermally protected and cooled by incoming forced air.
• Direct drive induction motor contains permanently lubricated ball
bearings. Lubricant protects from -20° F to 298° F (-29° C to
148° C).
• Rotating components are suspended on neoprene shock-mounts
to minimize noise and vibration
• Three-conductor power cord (five feet long) with molded plug is
internally grounded and strain relieved to the body of the fan
• Engineered for 20,000 hours of continuous operation when
properly powered
• Consult your local Hoffman sales office for information on
modifications to this product

TM-52

Subject to change without notice	

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© 2007 Hoffman Enclosures Inc.

Fans , Blowers ,
Louvers , and Vents

Blower Fan Package;
Fan and Blower Accessories

Bulletin

MCLY

Standard Sizes Blower Fan Package
Catalog
Number

AxBxC
in. (mm)

Free Air
CFM

Watts

Voltage

Hz

Amps

Motor
RPM

Noise
SIL (dB)

Weight
(lb.)

Weight
(kg)

adb275

5.75 x 17.00 x 7.25
(146 x 483 x 184)

230/275

84

115

50/60

1.2

2580/3100

56

15.00

7.00

Exhaust Grille and Filters for Blower Package
Located at air discharge side
of an enclosure using Blower
Package ADB275. Polished
stainless steel grille is 65% open
and offers low resistance to
airflow. Expanded aluminum
filter (included with each grille) is
easily removed for cleaning from
outside the enclosure. Mounting
hardware is furnished.

Catalog
Number

AxB
(in.)

AxB
(mm)

Filter Size
(in.)

AEXGR275
AFLTR275AL

5.75 x 19.00
146 x 483
4.98 x 16.56
Aluminum Filter Replacement (5 per package)

Filter Size
(mm)
126 x 421

Thermal
Management

Subject to change without notice	

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© 2007 Hoffman Enclosures Inc.

TM-53

Fans , Blowers ,
Louvers , and Vents

Louvers and Vents
Louver Plate Kits
Catalog
Number

AxB
in. (mm)

AVK23

Designed to provide
ventilation in enclosures
where excessive internal heat
or excessive moisture is a
problem. Although louvers
cannot keep all moisture out
of an enclosure, gasketing or
sealing the perimeter of the
louver plate reduces problems
associated with moisture
intrusion. These kits may be
easily installed in the field
by making a cutout of the
proper size and attaching the
louver plate in place. Louver
plates are made from 14 gauge
steel with an ANSI 61 gray
polyester powder finish over
phosphatized surfaces or 316
stainless steel. Hardware is
furnished for mounting. Custom
sizes, materials, finishes, etc.,
can be provided on special
order.

3.25 x 3.25
(83 x 83)
AVK23SS6 3.25 x 3.25
(83 x 83)
AVK33
3.88 x 4.50
(98 x 114)
AVK33SS6 3.88 x 4.50
(98 x 114)
AVK34
4.75 x 4.50
(121 x 114)
AVK34SS6 4.75 x 4.50
(121 x 114)
AVK43
4.50 x 5.50
(114 x 140)
AVK43SS6 4.50 x 5.50
(114 x 140)
AVK44
5.62 x 5.50
(143 x 140)
AVK44SS6 5.62 x 5.50
(143 x 140)
AVK64
5.62 x 7.50
(143 x 191)
AVK64SS6 5.62 x 7.50
(143 x 191)
AVK66
7.88 x 7.50
(200 x 191)
AVK66SS6 7.88 x 7.50
(200 x 191)
AVK84
5.81 x 9.50
(148 x 241)
AVK84SS6 5.81 x 9.50
(148 x 241)
AVK86
8.19 x 9.50
(208 x 241)
AVK86SS6 8.19 x 9.50
(208 x 241)
AVK88
10.56 x 9.50
(268 x 241)
AVK88SS6 10.56 x 9.50
(268 x 241)
AVK812
15.31 x 9.50
(389 x 241)
AVK812SS6 15.31 x 9.50
(389 x 241)

Bulletin

MCLY

Number
of
Louvers

Depth
D (in.)

Opening Opening Cutout
Depth Length Length Area
Area
Size
D (mm) L (in.) L (mm) sq. in.
sq. cm F (in.)

Cutout
Size
F (mm)

Cutout
Size
G (in.)

Cutout
Size
G (mm)

3

0.19

5

2.00

51

.86

5.54

2.00

51

1.75

44

3

0.19

5

2.00

51

.86

5.54

2.00

51

1.75

44

3

0.25

6

3.00

76

1.32

8.52

2.62

67

3.00

76

3

0.25

6

3.00

76

1.32

8.52

2.62

67

3.00

76

4

0.25

6

3.00

76

1.76

11.35

3.50

89

3.00

76

4

0.25

6

3.00

76

1.76

11.35

3.50

89

3.00

76

3

0.25

6

4.00

102

1.88

12.10

3.25

83

4.00

102

3

0.25

6

4.00

102

1.88

12.10

3.25

83

4.00

102

4

0.25

6

4.00

102

2.50

16.13

4.38

111

4.00

102

4

0.25

6

4.00

102

2.50

16.13

4.38

111

4.00

102

4

0.31

8

6.00

152

5.21

33.61

4.38

111

6.00

152

4

0.31

8

6.00

152

5.21

33.61

4.38

111

6.00

152

6

0.31

8

6.00

152

7.82

50.45

6.62

168

6.00

152

6

0.31

8

6.00

152

7.82

50.45

6.62

168

6.00

152

4

0.31

8

8.00

203

8.08

52.12

4.56

116

8.00

203

4

0.31

8

8.00

203

8.08

52.12

4.56

116

8.00

203

6

0.31

8

8.00

203

12.11

78.13

6.94

176

8.00

203

6

0.31

8

8.00

203

12.11

78.13

6.94

176

8.00

203

8

0.31

8

8.00

203

16.15

104.19

9.31

236

8.00

203

8

0.31

8

8.00

203

16.15

104.19

9.31

236

8.00

203

12

0.31

8

8.00

203

24.22

156.26

14.06

357

8.00

203

12

0.31

8

8.00

203

24.22

156.26

14.06

357

8.00

203

SS6 in catalog number indicates louver plate is Type 316 stainless steel.

TM-54

Subject to change without notice	

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© 2007 Hoffman Enclosures Inc.

Fans , Blowers ,
Louvers , and Vents

Louvers and Vents
Filters for Louver Plate Kits
Designed for use with Louver
Plate Kit. Mounting holes on
filter bracket align with louver
mounting holes. Hardware
supplied with louvers also secure
filter brackets in place. Aluminum
air filters provide good
arrestment of airborne dust and
dirt. Filter media is composed
of layers of slit and expanded
aluminum providing hundreds of adhesive coated baffle surfaces for
trapping impurities. Impurities are held throughout the depth of the
filter. Washing with warm water will keep the filter clean. To achieve
best results, Hoffman Filter Adhesive is recommended.

Vent Kit
Includes a stylized louvered
cover and filter package. Use as
an air inlet when a cooling fan is
mounted in an enclosure or use
two vent kits to allow
passive airflow.
Mounting hardware
included. Vent Kit
requires cutout shown in diagram. Available in gray
(RAL 7042) or black.

Ventilators

Catalog
Number

A x B (in.)

A x B (mm)

Use with Steel
Louver

Use with Stainless
Steel Louver

AFLT33
AFLT34
AFLT43
AFLT44
AFLT64
AFLT66
AFLT84
AFLT86
AFLT88
AFLT812

3.22x 3.25
4.09 x 3.25
3.84 x 4.25
4.97 x 4.25
4.45 x 6.25
6.72 x 6.25
4.64 x 8.25
7.02 x 8.25
9.39 x 8.25
14.14 x 8.25

82 x 83
104 x 83
98 x 108
126 x 108
113 x 159
171 x 159
118 x 210
178 x 210
239 x 210
359 x 210

AVK33
AVK34
AVK43
AVK44
AVK64
AVK66
AVK84
AVK86
AVK88
AVK812

AVK33SS6
AVK34SS6
AVK43SS6
AVK44SS6
AVK64SS6
AVK66SS6
AVK84SS6
AVK86SS6
AVK88SS6
AVK812SS6

Catalog Number

H x W x D (in.)

H x W x D (mm)

Color

XPV32
PPV32B

11.81 x 7.88 x 1.03
11.81 x 7.88 x 1.03

300 x 200 x 26
300 x 200 x 26

Gray
Black

Catalog Number

Description

ANMV6
ANMV3

Large nonmetallic vent
Small nonmetallic vent

Thermal
Management

Designed to fit most metallic and
non-metallic enclosures. Proper
installation will provide
rainproof ventilation
but will not meet
Type 4 or 12
requirements. Kit
includes a ventilator
made of fire-retardant
thermoplastic
material, mounting
hardware, and
instructions.

Bulletin

MCLY

NOTE: Supplied screws are 13mm (.515 inch) long. Some
applications may require longer screws.

Filter Adhesive

Catalog Number

Description

AFLTAD

Spray Adhesive

Designed to maximize the efficiency of all expanded aluminum air filters. Use of Filter Adhesive doubles
the dust-retention capacity of the filter. Adhesive contains a low-viscosity water-soluble oil which absorbs
dirt particles trapped on the surface of the filter. Through the circulation of the oil, a renewed impurityabsorbing surface is constantly established. Washing with water will remove dust, dirt, and other impurities.
Once the filter is dry, re-coat with adhesive.

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-55

Fans , Blowers ,
Louvers , and Vents

Filter and Fan Airflow Monitor

Bulletin

D85

Airflow monitor integrated
in protective grille

Application
Airflow monitor provides simple, reliable method to indicate loss
of airflow of fans. Simple mechanical operation makes these usable
alternatives to electronic monitoring systems.

Features
• Bi-directional switch activates an electrical contact if the airflow
of the fan falls below 8.2 ft./sec.
• Easy to install
• Monitors airflow to 164 ft./sec. (50m/s) max.

• Contact resistance, including wire, 370mΩ
• 2 x single strand AWG 26 connection, 19.69 in. (500mm) long;
0.20 in. (5mm) tip of stranded wire stripped/tinned
• Mount with attachment clamp and/or clip or integrated in
protective grille (see drawing)
• Mount airflow monitor opening perpendicular to airflow in dustfree and contamination-free environment
• AAFMCNC can be attached directly to Cooling and Exhaust
Package Grilles
• AAFM120NO can be attached to any 4-inch standard fan

Finish

Construction
• Reed/magnet contact
• Switching threshold of air flow speed > 8.2 ft./sec. (2.5m/s)
• Maximum switching:
capacity = 10W (resistive load)
voltage = NC: DC 240V; NO: DC 60V
current = NC: DC 500mA; NO: DC 170mA
• Hysteresis 3.3 ft./sec. (1m/s) fixed

Black plastic, UL94H-B

Industry Standards
CE
cURus File No. E250507
UL File No. E250507

Standard Sizes Filter and Fan Airflow Monitor
Dimensions

Operating/Storage Temperature

Catalog Number

in.

mm

Description

˚F

˚C

AAFMCNC

1.34 x 0.71 x 0.31

34 x 18 x 8

Airflow Monitor Normally Closed

-4.0 to 122

-20 to 50

AAFM120NO

4.72 x 4.72 x 0.39

120 x 120 x 10

Airflow Monitor with 120mm (4 in.)
Grille Normally Open

-4.0 to 176

-20 to 80

NOTE: Maximum Voltage and switching current must not exceed 10 watts. The resulting voltage and current peaks of inductive or capacitive loads must be
restricted by a contact protection circuit.

TM-56

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Filter and Fan Airflow Monitor

Fans , Blowers ,
Louvers , and Vents
Bulletin

D85

Description

Recommended use

NC - Normally Closed
Contact opens when airflow > 8.2 ft./sec.

Use to turn an alarm or signaling device ON
to indicate loss of air flow (≤ 8.2 ft./sec.)

NO - Normally Open
contact closes when air flow > 8.2 ft./sec.

Use to turn a signaling device ON to
indicate sufficient airflow (> 8.2 ft./sec.)

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-57

DataCom Fan Speed Controls

Fans , Blowers ,
Louvers , and Vents
Bulletin

DTHRM

Application

A19FANSC 19 In. Rack Mount Fan Speed Control

These Hoffman Fan Speed Controls provide a means to optimize
airflow in a cabinet or rack, balancing air volume requirements
with noise level and power use. The AFANTSC Panel Mount Fan
Speed Control adjusts fan speed automatically based on remote
temperature sensor inputs. The A19FANSC 19 in. Rack Mount Fan
Speed Control allows manual control over fan speed. Both units are
designed to work with Hoffman 4-, 6-, and 10-in. Compact Cooling
Fans and with 19 in. fan trays, as well as door- and top-mount fan
trays. These fan speed controls are ideal for offices, classrooms, and
other acoustic noise-sensitive areas.

• Continuously variable fan speed control knob with minimum speed
adjustment
• Uses 1 RU rack space
• Steel construction
• Two NEMA 5-15R outlets provide power to fan
• Six ft (1.83m) power cord plugs into standard 120V 60 Hz outlet

Features

A19FANSC: RAL 9005 black polyester powder paint

AFANTSC Panel Mount Fan Speed Control

Industry Standards

• Automatically adjusts fan speed depending on remote temperature
sensor input
• Temperature sensitivity is field adjustable; preset at 35°C (95°F)
• Idle speed and temperature slope are field adjustable
• Push-to-reset thermal circuit breaker inside control housing
• Compact polycarbonate control housing can be mounted in any
position
• NEMA 5-15R outlet provides power to fan
• Six ft (1.83m) power cord plugs into standard 120V, 50 or 60 Hz
outlet
• Remote probe with 10 ft (3.05m) lead mounts in airflow
• Mounting brackets included

(both controls)
UL 508A, File No. E249700
cUL C22.2 No. 14, File No. E249700

TM-58

Subject to change without notice	

Finish
AFANTSC: Light gray polycarbonate control housing

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Fans , Blowers ,
Louvers , and Vents

DataCom Fan Speed Controls

Bulletin

DTHRM

Standard Sizes DataCom Fan Speed Controls
Catalog
Number

Description

AFANTSC

Panel Mount Fan Speed Control

A19FANSC

Application

Fan speed controlled automatically
with remote temperature sensor
19 in. Rack Mount Fan Speed Control Fan speed adjusted manually

Voltage and
Frequency

Current Draw

Temperature Settings
(° C)

Temperature Settings
(° F)

120V, 50/60 Hz

2A max .

30, 35, 40, 45

86, 95, 104, 113

120V, 60 Hz

4A max .

Continuously variable

Continuously variable

Thermal
Management

Subject to change without notice	

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© 2007 Hoffman Enclosures Inc.

TM-59

Fans , Blowers ,
Louvers , and Vents

19 Inch Rack Mount Fan Tray

Bulletin

EC1

19 Inch Rack Mount Fan Tray with 3 Fans

Application
Fan trays enhance natural convection airflow within the cabinet
when installed with other 19-in. rack mount equipment. These trays
mount directly to 19-in. rack mounts and occupy one rack unit (1.75
in.) of rack height. They are made of steel with an RAL 9005 black
lightly textured polyester powder paint finish. Order rack mounting
hardware separately.

Construction
•
•
•
•

Fan trays available with either three or six 4-in. fans
Includes 6 ft (1.83m) power cord with NEMA 5-15P plug
Power cord plugs into standard 115 VAC outlet
Lighted rocker switch provides on-off control and indicates when
fans are on

Finish
RAL 9005 black lightly-textured polyester powder paint

19 Inch Rack Mount Fan Tray with 6 Fans

Standard Sizes 19 Inch Rack Mount Fan Tray
Catalog Number

Number of Fans

Power (watts)

Max Airflowa (cfm)

C (in.)

C (mm)

A19FT3B
A19FT6B

3
6

45
90

253
506

8.10
12.96

206
329

Technical Performance per 4 in. Fan
Operating Voltage
(VAC)

Operating
Frequency
(Hz)

Nominal Airflow
Capacitya
(CFM)

115
60
102
a Airflow rating shown appolies to fans before installation in fan tray.

TM-60

Subject to change without notice	

Noise Level
(dB)

Max. Static
Pressure
(in. WC)

Max. Operating
Pressure
(°F)

Max. Operating
Pressure
(°C)

Power
Consumption
(W)

41

0.27

158

70

15

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Fans , Blowers ,
Louvers , and Vents

Type 3R Fan Shroud Kit

Application
Fan shroud kits are available for outdoor enclosure applications
requiring Type 3R protection from falling rain, sleet, and snow.
Fan shroud kits include two fan shrouds, gasketing, and mounting
hardware. These fan shrouds can be used over any opening that fits
the shroud size.

Features
• Shrouds are easily installed over appropriately-sized openings using
the supplied hardware and gasket
• Two fan shouds per package to manage intake and exhaust
ventilation

Bulletin

D85

Catalog
Number

Compact Cooling
(muffin) Fans
4 in.
6 in.
10 in.

T4S3R
T6S3R
T10S3R
T4S3RSS
T6S3RSS
T10S3RSS

•
•
•
•
•
•

Cooling and
Exhaust Fan
Packages
Filter Fan Packages
TFP4_ TFP6_ SF05_ SF09_ SF10_

•
•

•

•

•

•
•

•

•

•
•

•

•

•

•
•

•

•

Construction
• 16 gauge mild steel or Type 304 stainless steel
• Perforated ventilation screen
• Pressure-sensitive adhesive-backed gasket and mounting hardware

Finish
ANSI 61 gray polyester powder coating over mild steel; smooth #4
brushed finish on stainless steel.

Industry Standards
Maintains UL/cUL Type 3R rating when properly installed on UL/cUL Type 3R
enclosure.

Thermal
Management

UL 508A Listed, File No. E61997: Type 3R
cUL CSA C22.2 No. 94, File No. E61997: Type 3R
NEMA/EEMAC Type 3R
IEC 60529, IP22

Standard Sizes Type 3R Fan Shroud Kit
Catalog
Number

Material

A
(in.)

A
(mm)

B
(in.)

B
(mm)

C1
(in.)

C1
(mm)

C2
(in.)

C2
(mm)

G
(in.)

G
(mm)

H
(in.)

H
(mm)

T4S3R
T6S3R
T10S3R
T4S3RSS
T6S3RSS
T10S3RSS

Steel
Steel
Steel
Stainless Steel
Stainless Steel
Stainless Steel

6.00
8.00
12.00
6.00
8.00
12.00

152
203
305
152
203
305

6.00
8.00
12.00
6.00
8.00
12.00

152
203
305
152
203
305

1.44
1.44
1.44
1.44
1.44
1.44

37
37
37
37
37
37

4.69
4.69
4.71
4.69
4.69
4.71

119
119
120
119
119
120

4.69
6.69
10.69
4.69
6.69
10.69

119
170
272
119
170
272

5.25
7.25
11.25
5.25
7.25
11.25

133
184
286
113
184
286

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-61

Heaters
Sizing and Selection

Heaters

When temperatures dip below the minimally-acceptable ranges for electronics, our electric heaters can raise
the temperature inside enclosures to appropriate levels. Heaters are designed to protect sensitive mechanical,
electrical, and electronic equipment from the harmful effects of condensation and corrosion. Two styles offer
heating powers from10 watts to 800 watts.
The graphs represent a painted steel enclosure mounted in a calm air building interior. The lowest temperature differential between room temperature and
enclosure interior must be 10°F+ to prevent humidity and condensation. For outdoor applications, double the heating power requirement.

Semiconductor Control Panel Heaters (for 10-60 Watt Heating Applications)

Step 1:
Plot your application using the graph above.
• Find surface area (4 ft. 2 ) on the vertical scale
• Draw a horizontal line across to the intersection point with the
diagonal line representing ΔT = 40°F
• Extend a vertical line down to the horizontal scale to determine
your total heating power required (W = 45 watts)

Step 2:
From the total watts required, subtract the 20 watts from preexisting components to arrive at the minimum heater power of 25
watts. The 30 watt DAH301 heater should be selected in this case
since it is the nearest size that exceeds the requirement.

Electric Heaters (for 100-800 Watt Heating Applications)

Example:

Step 2:

Which electric heater would most efficiently maintain a 60°F
temperature in an insulated 24 x 24 x 10 enclosure that is exposed to
a temperature not less than 30°F?

Using the graphs, draw a vertical line through the enclosure surface
area and determine the temperature rise given by each heater.
For enclosures exposed to windy conditions, heaters should be
oversized by approximately 50 percent.

Step 1:
Calculate the total enclosure surface area.
		
Area (ft. 2 ) = 2[(AxB)+(AxC)+BxC)] ÷ 144
where “A”, “B”, and “C” are the dimensions of the enclosure.
In our example,
		
Area = 2[(24x24)+(24x10)+(24x10)] ÷ 144

TM-62

Subject to change without notice	

Step 3:
Select the electric heater that achieves the desired temperature rise.
In our example, the desired temperature rise is 30°F (60°F - 30°F).
The 200 watt heater should be selected since its temperature rise
(35°F) exceeds the requirement.

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Heaters

Heaters
Sizing and Selection
Semiconductor Control Panel Heaters

Electric Heaters

Catalog Number

Watts

DAH101
DAH301
DAH601

10
30
60

Catalog Number

Watts

DAH1001A
DAH1002A
DAH2001A
DAH2002A
DAH4001B
DAH4002B
DAH8001B
DAH8002B

100
100
200
200
400
400
800
800

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-63

Heaters

Semiconductor Control Panel
Heaters

Bulletin

D85

Finish
Black anodized extruded aluminum.

Industry Standards
UL Component Recognized
CSA Component Recognized
IEC IP54
CE

Installation
Application
Designed to meet the demands of electronic, pneumatic,
hydraulic, and mechanical equipment requiring protection from
low temperatures, condensation, and corrosion. The Positive
Temperature Coefficient heater unit will maintain a stable
temperature environment within enclosures, allowing critical
components to perform with consistent reliability for longer periods.

Construction

Mount unit at or near the bottom of the cabinet. Improved heat
dissipation will be achieved by using two or more smaller heaters
wired in parallel. If a technical requirement exists for a specific
temperature, regardless of the external ambient temperature, a
thermostat can be installed.
CAUTION: Do not mount on wooden structures. Avoid
placement near heat-sensitive components.

• PTC (Positive Temperature Coefficient) heating element
• Mounting clip for 35mm DIN rails EN 50022

Standard Sizes Semiconductor Control Panel Heaters
Catalog Number

Watts

Voltage

Amps Starting
Current

L (in.)

L (mm)

Weight (lbs.)

Weight (kg)

DAH101
DAH301
DAH601

10
30
60

AC/DC 110/120
AC/DC 110/120
AC/DC 110/120

.8
1.2
2.5

1.97
3.93
5.5

50
100
140

.45
.66
1.10

.20
.30
.50

TM-64

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Semiconductor Control Panel
Heaters

Heaters
Bulletin

D85

Dimensions and Clearance Range for DAH101 and DAH301 Drawing

Dimensions and Clearance Range for DAH601 Drawing

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-65

Heaters

Electric Heaters

Bulletin

D85

Installation

CAUTION
These electric heaters are not designed for use in
dusty, dirty, corrosive, or hazardous locations. Portions
of the heater can get hot. Adequate protection must
be taken to protect people from potential burns, and
to protect other components from this heat. Hoffman
recommends this heater only be installed in a totallyenclosed metal enclosure.
DO NOT INSTALL HEATERS ON WOOD PANELS.

Application
Designed to protect sensitive mechanical, electrical, and electronic
equipment from the harmful effects of condensation, corrosion, and
low temperatures. Thermostatically-controlled fan-driven heater
units maintain a stable temperature within enclosures so critical
components can perform more reliably over a longer period of time.

Construction

Hoffman electric heaters should be centered as low as possible on
an interior enclosure panel. This permits the unit to heat the cool air
located at the bottom of the enclosure. For maximum efficiency and
longevity, the heater should be mounted in a vertical position with
the terminal block to the bottom and the air outlet openings at the
top in a sealed enclosure free from dust or debris. However, the unit
will also effectively distribute heat if turned 90 degrees. Although
enclosure panels are preferable, heaters may be installed on any flat
sheet metal surface.
DO NOT INSTALL HEATERS ON WOOD PANELS.
Heat sensitive components should not be placed near the heater
discharge area since this air can be quite warm. The clearance range
defines the space that must be kept free of these components for
proper and safe operation of the heater.

• Attractive and durable aluminum housing
• Thermostat, standard on all units, is adjustable from 0°F to 100°F
(-18°C to 38°C)
• Fan draws cool air from the bottom of the enclosure and passes
this air across the thermostat and heating elements before being
released into enclosure cavity
• Heated air is discharged through the top of the heater unit
• Four 10-32 x self-tapping screws are included with each heater
• Ball bearing fan runs continuously for even temperature
distribution
• Terminal strip with clamp connector that accepts both solid and
stranded wire

Finish
Brushed aluminum

Industry Standards
UL Component Recognized, UL File No. E61997
CSA Certified, CSA File No. 42186
CE

Standard Sizes Electric Heaters
Catalog Number

Watts

Voltage

Hz

Amps

Weight (lb.)

Weight (kg)

DAH1001A
DAH1002A
DAH2001A
DAH2002A
DAH4001B
DAH4002B
DAH8001B
DAH8002B

100
100
200
200
400
400
800
800

115
230
115
230
115
230
115
230

50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60

0.98
0.49
1.89
0.95
3.72
1.86
7.37
3.69

4.00
4.00
4.00
4.00
6.00
6.00
6.00
6.00

181
181
181
181
2.72
2.72
2.72
2.72

TM-66

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Heaters

Electric Heaters

Bulletin

D85

Dimensions and Clearance Range Drawing for DAH1001A, -2A and DAH2001A, -2A

Dimensions and Clearance Range Drawing for DAH4001B, -2B and DAH8001B, -2B

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-67

Thermal Accessories

Electronic Hygrotherm

Bulletin

D85

Application

Finish

Senses ambient temperature and relative air humidity and turns
on or off a connected device if temperature is below or humidity
is above the set point. Integrated LED in each adjustment knob
indicates active function.

Light gray plastic, UL94V-0

Features

Industry Standards
CE
cURus File No. E164102

• Temperature (32º-140ºF) and humidity (50%-90% RH) adjustment
• High switching capacity
• Optical function displays (LED) in each control
• Long service life (100,000 cycles, NO) (50,000 cycles, NC))
• Mounting clip for 35mm DIN rail
• Change-over contact (relay)
• Connection: 5-pole terminal for AWG 14 max. (2.5mm2 )
• Plastic housing UL94V-0
• Vertical mounting
• Max. switching capacity:
		 120 VAC 8A (Resistive Load)
		 240 VAC 8A (Resistive Load)
		 120 VAC 3A (Inductive Load)
		 240 VAC 3A (Inductive Load)
		 24 VDC 4A

Standard Sizes Electronic Hygrotherm
AxBxC

Operating Temperature
(adjustable)

Storage Temperature

Catalog Number

in.

mm

Hysteresis

Humidity range
(adjustable)

˚F

˚C

˚F

˚C

ATEMHUM

3.03 x 2.36 x 1.69

77 x 60 x 43

~ 3.6˚F (2K) ± 1.8ºF (1K) tolerance

50-90% RH

32 to 140

0 to 60

-4 to 176

-20 to 80

TM-68

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Thermal Accessories

Electronic Hygrotherm

Bulletin

D85

Input:
	

Contacts 1 and 2: Supply voltage 120 VAC or 230 VAC

Relay Output:
	

Contacts 3 and 5 and contacts 4 and 5 (see table)
Contacts

Close at...

Open at...

Use for

3 and 5

humidity rise or
temperature drop

humidity drop or
temperature rise

heaters,
dehumidifiers,
low-temp alarms

4 and 5

humidity drop or
temperature rise

humidity rise or
temperature drop

cooling,
humidifiers,
high-temp alarms

Thermal
Management

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-69

Thermal Accessories

Mechanical Hygrostat

Bulletin

D85

Application

Finish

Designed to control relative air humidity inside enclosures. When
connected to an enclosure heater (dehumidifier), it will turn on the
heater at the set humidity level to raise the dew point. Prevents
damage and malfunction of electronic components caused by
condensation and corrosion. Can also be used to control cooling
fans, warning lights, or other devices.

Light gray plastic, UL94V-0

Industry Standards
CE

NOTE: The critical relative humidity (RH) for most components is 65 percent.
Above 65 percent RH, condensation can cause malfunction of electronic
equipment.

Features
•
•
•
•
•
•
•
•
•

Adjustable relative humidity range
High switching capacity
Long service life (50,000 cycles)
Maximum permissible air velocity of 50 ft./sec. (15m/s)
Maximum switching voltage = 250 VAC
NOTE: 250 V should be switched only in a non-condensing environment
Change-over contact
Contact resistance <10mΩ
Connection: 3-pole terminal, for AWG 14 max. (2.5mm2 )
Mounting clip for 35mm DIN rail

Standard Sizes Mechanical Hygrostat
AxBxC

Switching Capacity

Operating Temperature
(adjustable)

Storage Temperature

Catalog Number

in.

mm

Minimum

Maximum

˚F

˚C

˚F

˚C

AMHUM

2.64 x 1.97 x 1.50

67 x 50 x 38

100mA @ AC/DC 20 V

5A @ AC 230 V (resistive load)
0.2A @ AC 230 V
(inductive load at cos Ω = 0.8)
DC 20W

32 to 140

0 to 60

-4 to 176

-20 to 80

TM-70

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Thermal Accessories

Dual Thermostat

Bulletin

D85

Application
Houses two separate thermostats, allowing independent control of
heating and cooling of equipment. Both thermostats offer a wide
adjustment range and are color coded for easy function recognition.

Features
• Two thermostats; one normally closed (NC), red, and one
normally open (NO), blue, in one casing
• Wide adjustable temperature range (32º-140ºF)
• Wiring terminal easily accessible
• Thermostatic bimetallic sensor element
• Connection: 4-pole terminal for AWG 14 max. (2.5mm2 )
• Mounting clip for 35mm DIN rail

Finish
Light gray plastic, UL94V-0

Thermal
Management

Industry Standards
CE
cURus File No. E164102
CSA File No. 215952
UL File No. E164102

Standard Sizes Dual Thermostat
AxBxC

Setting Range

Catalog Number

in.

mm

Switching Capacity

Normally Closed

Normally Open

ADLTEMP

2.64 x 1.97 x 1.81

67 x 50 x 46

NC: 10A resistive/2A inductive @250 VAC
NO: 5A resistive/2A inductive @250 VAC
DC 30W

32–140 ˚F

32–140 ˚F

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-71

Thermal Accessories

Temperature Control Switches

Bulletin

D85

Temperature Control Switches (Thermostats)
Features
• Labels included:
- Additional label for conversion to Celsius scale
- Blank label to cover set point range label when adjustment after
initial setting is not desired

Construction
• Bimetal temperature sensor
• Plastic housing
• Connections consist of tubular screw terminals for
AWG 14 (0.04 sq. in.)
• Provision for both panel mounting and DIN rail mounting

Finish
Molded Plastic housing is black

Industry Standards
UL94-VO
Protection rating IEC IP30
UL/cUL Component Recognized, File Number E164102
CSA Certified, File Number 215952
CE

Application
These easy-to-install thermostats are designed to regulate and
monitor air temperature in enclosures that are set up to operate
with heaters, fans, filter ventilators, heat exchangers, and/or signal
transmitters. Thermostat ATEMNC is specifically designed for use
with heaters (contacts open on temperature rise), while thermostat
ATEMNO is designed to control fans, filter ventilators, or for
switching signal transmitters in the event of overheating (contacts
close on temperature rise). Both thermostats have an adjustable
set point range of 30°F to 140°F. An additional label is provided to
convert set point range to degrees Celsius. A preset label is also
provided to cover the set point range label after the thermostat is
put at desired temperature.
When the enclosure reaches the pre-determined set point,
temperature contacts in the thermostat are activated and the fan or
heater begins to operate. Thermostats prolong the life expectancy
of heaters and fans by curtailing their operating hours and also
increase the working efficiency of electrical components by exposing
them to fewer contaminants from the surrounding environment.
Connections consist of tubular screw terminals for AWG 14 (0.04
sq. in.). Provision for both panel mounting and DIN rail mounting.
Housing is plastic.

TM-72

Subject to change without notice	

Temperature Control Switches (Thermostats)
Catalog Number

Contact Type

ATEMNC
ATEMNO

NC (normally closed), quick acting
NO (normally open), quick acting

Load Rating
Amp

Volts

Contact Type

15
16
1
10
1

120 AC
250 AC
120-250 AC
12-24 DC
12-24 DC

Resistive
Resistive
Inductive
Resistive
Inductive

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

Thermal Accessories

Industrial Corrosion Inhibitors

Bulletin

A80

Life Expectancy and Usage
The normal useful life-span of Hoffman corrosion inhibitors is in
excess of one year. However, inhibitor life expectancy is shortened
by approximately 25% when exposed to temperatures above
104° F (40°C). This product is not recommended for use where
temperature exceeds 199°F. Ventilated enclosures or enclosures not
sealed properly, as well as frequent door openings, also shorten the
product life. Additional inhibitors should be used if these conditions
exist. Since Hoffman corrosion inhibitors are vapor-phase protective,
all surfaces to be protected should be accessible to the vapors. The
maximum distance the vapors can travel is approximately 1.50 feet
(.46 meters). Protection of long narrow enclosures can be achieved
with tape or multiple inhibitors.

Storage and Handling

Industrial Corrosion Inhibitors
Hoffman corrosion inhibitors protect
• Interior components of electrical enclosures, boxes, consoles, and
wireways
• Interior components of electronic enclosures
• Electrical and electronic equipment and controls
• Parts and components that are packaged in crates during shipping
and storage
• Switch gear and relay cabinets
• Interiors of pipes, conduits, and fuse boxes
• Process control computers, instruments, and recording devices
• Tool chest interiors and contents
• Equipment stored at construction sites

Chief Advantages
• Protects against salt and high humidity
• Eliminates the need of oiling, plating, or dipping metal
• Puts protected equipment to use immediately without degreasing
or coating removal
• Provides durable protection for up to 12 months

How They Work

Metal

Protected by Chemical

Unprotected by Chemical

Catalog Number

Enclosure Volume Protected

Aluminum

Marked reduction of surface attack;
no pitting
Decreased tarnish; very minor surface
attack
No change
Slight staining
Slight discoloration
Slight discoloration

Severe surface attack; tarnish; pitting

AHCI1DV
AHCI5E
AHCI10E
AHCI60R
AHCI240R
AHCI238S

1 cu. ft. (28.32 liters)
5 cu. ft. (141.6 liters)
10 cu. ft. (283.2 liters)
60 cu. ft. per roll (1699 liters)
240 cu. ft. per roll (6797 liters)
Corrosion Inhibitor Spray

Brassa
Steel, Iron
Coppera
Zinc Plate
Tin Plate
a

Surface discoloration; pitting
Severe corrosion
Heavy corrosive attack
Severe corrosion
Moderate corrosive attack

AHC15E and AHCI10E emitters are recommended for these materials

Subject to change without notice	

PH 763 422 2211 • FX 763 422 2600 • www.hoffmanonline.com	

© 2007 Hoffman Enclosures Inc.

TM-73

Thermal
Management

Each inhibitor contains a special chemical combination that vaporizes
and condenses on all surfaces in an enclosed area. Vapors will
redeposit as needed in the event of condensation of moisture on
surfaces. These vapors reach every part of an enclosure, protecting
all interior components. Spraying, wiping, or greasing are not
required. This eliminates precoating, special wraps, and drying
agents. Protection is effective even in salt-water atmospheres. The
AHCI5E and AHCI10E emitters have additional red-metal inhibitors
for further protection. Enclosures containing corrosion inhibitors
must be reasonably sealed.

Each Hoffman corrosion inhibitor is individually packaged in a
resealable bag for maximum effectiveness at the time of usage.
Corrosion inhibitors should be stored at temperatures not exceeding
120°F (45C ). Recommended shelf life under normal conditions is
one year. Hoffman corrosion inhibitors are not returnable. When
determining the proper corrosion inhibitor for your application,
assume the enclosure volume to be protected is greater than
calculated if (1) cabinet doors are opened frequently, (2) cabinet is
located in an extremely corrosive area, and/or (3) cabinet length
divided by depth is greater than four.
AHCI1DV Foam device protects one cubic foot (28 liters) of
enclosure volume for approximately one year.
Size: .25 in. x 1.25 in. x 3.00 ft. (6mm x 32mm x 76mm)
AHCI60R Tape protects sixty cubic feet of enclosure volume per
roll. Use approximately 2.50 in. (6.3cm) of tape per cubic foot
(28 liters) of enclosure volume to be protected. Each roll of tape is
packaged individually in a resealable bag.
Size: .25 in. x .75 in. x 12.00 ft. (6mm x 19mm x 3.6m)
AHCI240R Tape protects 240 cubic feet of enclosure volume per
roll. Use approximately 1.00 in. (2.5cm) of tape per cubic foot
(28 liters) of enclosure volume to be protected. Each roll of tape is
packaged individually in a resealable bag.
Size: .25 in. x 2.00 in. x 20.00 ft. (6mm x 51mm x 6.1m)
AHCI5E Emitter protects five cubic feet (142 liters) of enclosure
volume for approximately one year. Emitters contain additional red
metal (non-ferrous) inhibitors.
Size: 2.50 in. (diameter) x 1.50 in. (high) (63mm x 38mm)
AHCI10E Emitter protects ten cubic feet (283 liters) of enclosure
volume for approximately one year. Emitters contain additional red
metal (non-ferrous) inhibitors.
Size: 2.50 in. (diameter) x 2.00 in. (high) (63mm x 51mm)
AHCI238S Spray is a non-conductive, nonflammable, vapor phase
film and is non-toxic. It has essentially neutral pH value. Application
provides instant protection against corrosion. Spray is water soluble
and can be easily flushed away with water if desired. This product
should be kept from freezing, and has a shelf life of 2+ years in
normal warehouse conditions.



---

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