Section P Fronts Kv P634 Page

2016-05-27

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LampsNumber A

Depth

Aperture

Width

Length*

Dimensions and Lamps

P634 7

1/4"

184mm

1/2"

343mm

19"

483mm

Two 26W

Quad Tube

1/2"

165mm

Alzak

Reflector

Venting

Slot

Vertical

Adjustment

Aperture

Frame

Safety

Chain

Rail

Support (2)

Lamps (2)

(By Others)

Specular

Alzak Cone

Cone Retaining

Spring

Vented

Top

Socket

Bracket

Prism Lens

(Optional)

*Length increases to 24" with EM accessory.

P634

Wide Beam Downlight

Two 26W Quad Tube Lamps

71/4" Round Apertures

Optics and Applications

The primary reflector maximizes the output of two energy

efficient quad tube lamps. The parabolic shielding cone

offers low brightness visual comfort from all normal viewing

angles. Use in entries, corridors, transient spaces, and for

task lighting in low to medium height ceilings.

Design Features

Construction allows easy access to all components.

Efficient air flow design and extensive heat testing assure

cool fixture temperature for optimal lamp performance.

Steel housing protects the reflector and assures the proper

relationship for maximum performance. Maximum ceiling

thickness 2". Ballast and lamp service from below.

Finish

Specular clear Alzak cones are standard. Optional

colors and Softglow®finishes are available. Housings

and structural parts are painted optical matte black to

suppress stray light leaks. Steel parts are phosphate

conditioned for corrosion resistance before painting.

Ballasts

Fully electronic, microprocessor controlled with variable

starting current for inrush protection to assure rated lamp

life. Input voltage range from 120V through 277V. Power

factor .98, starting temperature 0°F (-18°C), THD < 10%.

Pre-heat start < 1.0 second. End of lamp life protection.

Rated for > 50,000 starts.

General

Fixtures are pre-wired, UL and C-UL listed for eight wire

75°C branch circuit wiring. All products are union made.

Designed and manufactured in the USA.

Warranty

5 Year Warranty. See www.kurtversen.com for details

or select hyperlink.

Accessories

G Gold cone. WT White cone flange.

Wheat cone.

WHT

White complete cone.

Y Pewter cone.

DCE

Double circuiting.

R2 26" support rails.

V347

347 volt ballast.

R5 52" support rails. LS Lamp shield, acrylic.

FLC7

Full lens cone 7". LP Prism lens, acrylic.

Fuse.

S Softglow®add S to color, e.g.SC Softglow®clear.

DM Dimming ballast. Specify watts and volts.

DME

ECO Lutron. Specify watts and volts.

DMX

7% Advance Mark X. Specify watts and volts.

Emergency power includes integral charger light and

test switch visible through aperture. Single lamp

operation for 90 minutes. Specify volts.

DATE: TYPE:

PROJECT:

Rev1 Date 2/26/2016

to change specifications without notice. One Paragon Drive, Suite 157, Montvale, NJ 07645 / Tel 201.664.8200 / Website www.kurtversen.com

P634 Two 26W Quad Tube lamps Read Bottom Data

15° 25° 35°

11'

13'

16'

10'

12'

14'

11'

13'

16'

P634

Performance Datachart

Ceiling to FloorSingle Unit Initial Footcandles, 30" Work Plane Multiple Units Initial Footcandles, 30" Work Plane

Ceiling 80% Walls 50% Floor 20%

FC FC Diam Spacing RCR 1 RCR 3 RCR 8

Nadir

FC Diam FC Diam

Spacing is Maximum Over Work Plane

See notes 4, 5 and 6.

P634 Two 26W Quad Tube lamps

Ceiling

Wall % 70 50 30 10 10 50 10 10 0

80% 70% 50% 30% 0

Zonal Cavity Method - Floor Reflectance 20%

RCR

.58

.54

.51

.48

.44

.42

.39

.36

.34

.32

.56

.51

.47

.43

.39

.36

.33

.31

.28

.26

.55

.49

.44

.39

.36

.32

.29

.27

.25

.23

.53

.47

.41

.37

.33

.30

.27

.24

.22

.20

.55

.50

.46

.42

.39

.36

.33

.30

.28

.26

.53

.46

.41

.37

.33

.30

.27

.24

.22

.20

.53

.49

.45

.41

.38

.35

.32

.30

.27

.26

.51

.45

.40

.36

.33

.29

.27

.24

.22

.20

.51

.47

.43

.40

.37

.34

.31

.29

.27

.25

.49

.44

.40

.36

.32

.29

.26

.24

.22

.20

.47

.42

.38

.34

.31

.28

.25

.23

.21

.19

1 Data on all charts calculated with a clear specular cone finish.

2 Specular cone multipliers: Wheat x .97, Pewter x .88, Black x .50.

3 Softglow® cone multipliers: Clear x .97, Wheat x .87, Pewter x .73.

4 Single unit Datachart pattern diameters are determined by the number

of degrees from each side of nadir. Therefore a 15° diameter

represents a total 30° pattern width at the work plane 30" above the

floor. Footcandle values are at the edge of that diameter.

5 Datachart spacing is rounded off to the nearest foot.

6 Data by IES methods. Compact fluorescent data vary due to lamp

lumen differences, power input, burning position, ambient temperature

and ballast characteristics. A modification factor should be applied.

7 Brightness data from the Average Luminance Method are inaccurate

for small aperture downlights. They are theoretical calculations derived

for large surfaces such as troffers.

Notes

P634 Two 26W Quad Tube lamps

Eff. 52% S/M 0° 1.3 S/M 90° 1.4

110

220

330

440

550

660

770

880

990

1100

55°

35°

45°

75°

65°

85°

25°15°5°

90°0°

980

1033

1091

1145

1037

950

942

811

503

284

132

° Vertical Angles

* Initial Lamp Lumens

3600*

°980

971

982

995

912

924

909

800

592

364

175

Corridor Footcandles

Ceiling

Height

Reflectances: Ceiling 80% Walls 50% Floor 20%

P634 Two 26W Quad Tube lamps Read Bottom Data

8' Centers 12' Centers

C/L 2' 4' 6' C/L C/L 2' 4' 6' 8' 10' C/L

10'

0°

90°

Initial footcandles. Readings on the floor. 5' corridor width.

Candlepower Distribution Coefficients of Utilization

Candelas

One Paragon Drive, Suite 157, Montvale, NJ 07645 / Tel 201.664.8200 / Website www.kurtversen.com

Because of continuing product improvement programs, Kurt Versen reserves the right to change specifications without notice.

Cut out dimensions: 7 9/16". Outer flange dimension: 131/8".

Section P Fronts Kv P634 Page

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