CM Coded Magnetic Safety Interlock Switches And Controllers Datasheet Series

2016-05-20

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Safety Interlock Switches

CM Series
Most Diverse and Flexible Line of
Coded Magnetic Safety Interlock
Switches and Controllers
• Combine door switch monitoring and E-stop monitoring by using
the CM-S41 controller
• Monitor is single switch to CAT4 with the CM-S30 controller
• Monitor multiple switches to CAT3 using CM-S4 or CM-S30
controllers
• Monitoring multiple switches on individual channels can be
achieved by using the CM-S21 or CM-S41 controllers. Easily
expand your system by using the CM-SE expansion module.
• All CM switches are rated IP67
• Stainless steel switches are available for harsh environments
• A Rapid Delivery Product: Select models are available for shipment today or within 3 to 5 days
R

C

US

Conforms to EN292, EN60204-1, EN954-1,
EN1088, EN60947-5-3, EN947-5-3,
EN50081, EN50082, EN61000-6-2,
ISO 13849-1
UL and C-UL listed, TUV certified

Description
The CM series of controllers and coded magnetic switches
offers the most flexibility and widest range of options available.
The CM series is comprised of two basic technologies.

Controller Technologies
2-Wire Single Channel Controllers
The CM-S41 and CM-S21 controllers monitor the 2-wire
magnetically coded switches. The CM-S41 and CM-S21 controllers use a patented technology which allows them to monitor the
2-wire or single channel switches up to Category 3. The ability to
monitor just a single channel enables the CM-S41 and CM-S21 to
easily monitor multiple switches and provide individual status of
each channel. Both of these controllers are compatible with the
CM-SE expansion module.
Dual Channel Controllers
The CM-S4 and CM-S30 controllers are designed to monitor
conventional read-style, magnetically-coded switches with 1 N/O
+ 1 N/C contacts. The CM-S4 controller can monitor up to four
switches to category 3. The CM-S4 controller offers status indication for each individual switch. The CM-S30 controller can monitor
one switch to category 4, or two switches to category 3. The CMS30 control unit is capable of monitoring up to 30 conventional
read style switches in series, but does not conform to category 3
when used with more than two switches.

G

Switch Categories
The CM series of switches are all magnetically coded.
The CM series of switches fall into three main categories:
1. 2-wire Coded Magnetic
2. Conventional Read Style 1 N/C + 1 N/O contacts
3. Universal Read Style 2 N/C + 1 N/O contacts
The 2-wire Coded Magnetic Switches are only compatible with
the CM-S21, CM-S41 and CM-SE control units and expansion
module. The Conventional Read Style Switches are compatible
with the CM-S4 and CM-S30 controllers. The Universal Read
Style Switches are unique in design, all three contacts are rated
for safety. This means that Universal Read Style switches can
be used with the CM-S4 or CM-S30 Controllers, or conventional
safety monitoring relays such as the G9SA, SR103 or G9SX-AD,
-BC. This allows the Universal Read Style Switches to be run in
series with E-stop switches or other mechanical door switches.
Typically a category 2 rating would be applied to a system that
incorporates multiple switches wired in series to a standard safety
monitoring relay. A risk assessment should always be performed
by properly trained and authorized personnel.

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G-63

CM Series

Safety Interlock Switches

Switch Specifications
Electrical
Safety Contacts:
N/C Operating Distance:

CM-S5, CM-S6
1 N/C + 1 N/O

CM-S221, CMS521, CM-S621
2 N/C + 1 N/O

CM-S11
Current Sensing
Circuit
On = 5-7 mm; Off
= 8-12 m

CM-S31
Current Sensing
Circuit
On = 5-7 mm; Off
= 8-12 mm

On = 7 mm;
Off = 10 mm

On = 7 mm;
Off = 10 mm

1 mm
300 mA / 24 V

1 mm
300 mA / 24 V

1 mm

1 mm

1 mm
300 mA / 24 V

2 x M4
screws supplied
Glass filled PPS

2 x M4
screws supplied
ABS

2 x M4
screws supplied
ABS

2 x M4
screws supplied
ABS

Max Wire Size:

Pre-wired cable
to 5 m

Pre-wired cable
to 10 m

Pre-wired cable
to 10 m

Pre-wired cable
to 10 m

2 x M4
screws supplied
316 stainless
steel
Pre-wired cable
to 10 m

Weight:
Color:
Mechanical Life:
Environmental
Protection:
Operating Temperature:

230 g (8.1 oz.)
Red
106

207 g (8.1 oz.)
Red
106

230 g (8.1 oz.)
Red
106

207 g (7.3 oz.)
Red
106

265 g (9.3 oz.)
Stainless
106

3 x M4
screws supplied
316 stainless
steel
Pre-wired
cable to 5 m,
6-pin micro AC
connector
545 g (19.2 oz.)
Stainless
106

IP67 (NEMA 6)
-10 to 55°C
(14 to 131°F)

IP67 (NEMA 6)
-10 to 55°C
(14 to 131°F)

IP67 (NEMA 6)
-10 to 55°C
(14 to 131°F)

IP67 (NEMA 6)
-10 to 55°C
(14 to 131°F)

IP67 (NEMA 6)
-10 to 55°C
(14 to 131°F)

Humidity:
Compliance
Standards:
Approvals/Listings:

95% RH at 55°C (131°F)

Case Material:

EN292, EN60204-1, EN954-1, EN1088, EN60947-5-3, EN947-5-3, EN50081, EN50082, EN61000-6-2
CE marked for all applicable directives, UL and C-UL.
TUV certified: CM-S1, CM-S2, CM-S3, CM-S11 and CM-S31.
Specifications are subject to change without notice.
Note: The safety contacts of the STI switches are described as normally closed (N/C) i.e., with the guard closed, actuator in place, and
the machine able to be started.

	

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G-64

CM-S321,
CM-S421
2 N/C + 1 N/O

CM-S1 —
On = 3 mm;
Off = 8 mm
CM-S2 and
CM-S3 —
On = 6 mm;
Off = 13 mm
1 mm
500 mA / 24 V

Minimum Gap:
Max Switched Current/
Voltage:
Mechanical
Mounting:

G

CM-S1, CM-S2,
CM-S3
1 N/C + 1 N/O

www.sti.com/info

On = 7 mm;
Off = 10 mm

IP67 (NEMA 6)
Connector
Models:
-10 to 55°C
(14 to 131°F)
Integrated
Cables:
-10 to 95°C
(14 to 203°F)

CM Series

Safety Interlock Switches

Control Unit Specifications
Electrical
Power Supply:

CM-S4
24 VAC/DC ± 10%

CM-S30
24 VAC/DC ± 10%

Power Consumption:

2.4 VA typical, 0.25 A quick acting

120 mA

Input Fuse:
Safety Inputs:

500 mA resetable
1 N/O + 1 N/C

750 mA resetable
1 N/O + 1 N/C

Max Cable Length:
Max Input Resistance:
Relay Outputs:

—
Contact factory
1 N/O safety + 1 N/O aux.

—
Contact factory
2 N/O safety + 1 N/C aux.

Max Switched Current/Voltage:
Min Switched Current/Voltage:
Impulse Withstand Voltage:
Max Drop-Out Time:
Max Output Fuse:
Reset Mode:
External Device Monitoring:
Mechanical
Mounting:
Case Material:
Max Wire Size:
Weight:

4 A / 24 VAC/DC
4 mA / 12 V
250 V
18 ms
4 A quick acting
Automatic
N/C loop between Y1 and Y2

3 A / 24 VAC/DC
4 mA / 12 V
250 V
18 ms
4 A quick acting
Automatic/Manual, monitored
Between Y1, Y2, Y3

35 mm (1.38 in.) DIN rail
Polyamid PA6.6
2 x 2.5 mm2 (12 AWG)
240 g (8.5 oz.)

35 mm (1.38 in.) DIN rail
Polyamid PA6.6
1 x 2.5 mm2 (14 AWG)
230 g (8.1 oz.)

Color:
Indication:

Grey
U: Green = On
Outputs Open: Red = On
Outputs Closed: Green = On
D11, D12, D21, D22: Green = Gate closed
D31, D32, D41, D42: Red = Gate open
3 x 107

Red/Grey
Green = Power On
Green = K1 On
Green = K2 On

1 x 107

35 mm (1.38 in.) DIN rail
Polycarbonate
1 x 2.5 mm2 stranded, 1 x 4 mm2 solid
CM-S41 — 575 g (20.3 oz.)
CM-S21 — 183 g (6.5 oz.)
CM-SE — 135 g (4.8 oz.)
Red
Power = Red
Outputs Closed: Green = On
Outputs Open: No Light = Off
Gate Closed: Yellow = On
Gate Open: No Light = Off
1 x 106

Housing IP40, Terminals IP20
0 to 50°C (32 to 122°F)
95%

Housing IP40, Terminals IP20
0 to 55°C (32 to 131°F)
93%

Housing IP40, Terminals IP20
10 to 55°C (50 to 131°F)
85%

Mechanical Life:
Environmental
Protection:
Operating Temperature:
Humidity:
Compliance
Standards:

CM-S41, CM-S21 & CM-SE
CM-S41 — 24 VAC/DC, 110/230 VAC
CM-S21 & CM-SE — 24 VAC/DC
CM-S41 — 6 VA;
CM-S21 & CM-SE — 3 VA
500 mA resetable
CM-S41 —
4 CM-S11 or CM-S31 switches
CM-S21 —
2 CM-S11 or CM-S31 switches
CM-SE — 5 CM-S11 or CM-S31 switches
100 m (328 ft.)
Contact factory
CM-S41 & CM-S21 — 2 N/O;
CM-SE — N/A
4 A / 230 VAC; 2 A / 24 VDC (resistive)
10 V / 10 mA
250 V
Deactivation by sensor 13 mS
AC = 5 A; DC = 2.5 A; quick acting
Monitored manual or automatic
N/C loop between X1 and X2

G

EN292, EN60204-1, EN954-1,EN1088,
EN60947-5-3, EN947-5-3, EN50081,
EN50082, EN61000-6-2
Approvals/Listings:
CE marked for all applicable directives, UL and C-UL, TUV (TUV pending for CM-S30)
Safety Category:
Cat 3 per EN954-1
Cat 4 per ISO 13894-1
Cat 3 per EN954-1
(internal operation)
(internal operation)
(internal operation)
Specifications are subject to change without notice.
Note: The safety contacts of the STI switches are described as normally closed (N/C) i.e., with the guard closed, actuator in place, and the machine able to
be started.

	

EN292, EN60204-1, ISO 13849-1, EN1088, EN60947-5-3, EN947-5-3,
EN50081, EN50082, EN61000-6-2

Select models are available for Rapid Delivery.

Visit this product on www.sti.com for details.

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G-65

CM Series

Safety Interlock Switches

Applications
2-Wire Single Channel Controllers
CM-S41 Control Unit
The CM-S41 is a combined Safety Switch and E-Stop control
unit. Along with the ability to monitor up to four, 2-wire CM Series
safety switches, it can also monitor the normally closed contacts
of emergency stop buttons or mechanical safety switches in dual
channel control circuits.
The CM-S41 has 2 normally open safety contact outputs and 1
normally closed auxiliary output, an external reset/proving circuit
and LED indication for “Power”, “Run” and the status of each
activated gate switch.
CM-S21 Control Unit
The CM-S21 control unit is a 24 VAC/DC system that can monitor up to 2 CM Series safety switches.
The CM-S21 has 2 normally open safety contact outputs and 1
normally closed auxiliary output, an external reset/proving circuit
and LED indication for “Power”, “Run” and the status of each
activated gate switch.

G

CM-S21 Application Diagram

24V
(+ve)

CM-SE Extender Module
The CM-SE expansion module is a 24 VAC/DC unit that can be
added to either the CM-S41 or CM-S21 to monitor an additional
5 CM Series safety switches. Connection to the main control
unit is by a simple 2-wire bus connection. The status of each
guard switch is shown by the YELLOW LED’s. Additional CMS-E
modules can be added to monitor larger systems.

GS1

A1 X1 BL DR 31 13 23

K1

GATE 1

K2

POWER
IND 1
IND 2

MANUAL
RE-SET

RUN

GATE 2

F2

F1

A2 X2 BL DR 32 14 24

GS2
0V
(-ve)

CM-S41 Application Diagram

24 V
+ve

GS1 GS2

A1 S13 S23 X1 BL DR BL DR 31 13 23

RUN 2

DE-SELECT
GATE 2

3

GATE 3

4

GATE 4

POWER

IND 2

IND 4

MANUAL
RE-SET

IND 5

GATE 4 GATE 5

F2

F1

ISIS-4
or ISIS-2
CM-S41
/ CM-S21
Control
CONTROL UNIT
Units:
Connect
the CM-SE
Bus
Connect
the ISIS-E
connection
to an active to
Bus connection
gate input.
A2

GS4 GS5

GS3 GS4

G-66

A1

BUS

A2 DR BL DR BL DR BL

GATE 3 GATE 4

A2 S14 S24 X2 BL DR BL DR 32 14 24

N (-ve)

IND 1

IND 3

K1

Control Unit

GATE 1 GATE 2 GATE 3

K2
1

Extender Module
GS1 GS2 GS3

A1 DR BL DR BL DR BL

K1

GATE 1 GATE 2

POWER

K1
K2

K2

CM-SE Application Diagram

L (+ve)

MECHANICAL
SAFETY
SWITCHES
or
EMERGENCY
STOP

K1

K2

K1
K2

www.sti.com/info

0V
-ve

2-WIRE BUS CONNECTION

BL DR

CM Series

Safety Interlock Switches

Applications (continued)
Dual Channel Controllers
CM-S4 Control Unit
The CM-S4 controller is capable of monitoring up to four,
magnetically coded switches with 1 N/O + 1 N/C contacts up to
category 3 according to EN954-1. The CM-S4 has a dedicated
dual channel input for each switch and has LED status indicators
for each channel. The CM-S4 has 1 N/O safety contact and 1 N/O
Aux contact. External Device Monitoring (EDM) is available using
Y1,Y2 inputs.
CM-S30 Control Unit
The CM-S30 controller is capable of monitoring one magnetically coded switch with 1 N/O + 1 N/C contacts up to category
4, or two switches to category 3 according to ISO 13489-1. The
CM-S30 control unit is capable of monitoring up to 30 conventional read style switches in series, but does not conform to category
4 when used with more than two switches. The CM-S30 controller
has 2 N/O safety contacts and 1 N/C Auxiliary contact. External
Device Monitoring (EDM) is available using Y1,Y2 inputs.

CM-S4 Application Diagram

G

CM-S30 Application Diagram (Cat 3)

24VAC/DC

24VAC/DC
READ HEAD 1

READ HEAD 2
A1 A2

YE

GN

WH BN

YE

GN

WH BN

WH

HL1 HL2 H22

BRN

2

3

4

5

6

7

GN
GN
GN
GN

BN

H73 H74

Y1

ID

D42
RD

GN

BN

16

WH YE

FEEEDBACK LOOP

17

GN

18

Y1

Y2

CM-S30 Application Diagram (Cat 4)
14

24VAC/DC

24

K1
K2

A1 A2

K1

READ HEAD 3

K2

K4

RD
15

32

F2

N (0 Volt)

K3

OUT

CHANNEL 4

12

K1

K1
K2

GN

D41

24

Y3

K1

MONITORED AUTO
RESTART

control logic

D31

11

Y2

K1

D21

14

CHANNEL 21 START/
FEEDBACK LOOP

CM-S30
K1

D12

WH YE

GN

K3

CHANNEL 2

D11

CHANNEL 3

10

GN

K2

READ HEAD 4

READ HEAD 1

GN

9

23

YE

RD

CHANNEL 1

CM-S4

13

YE

UB

D12

D12
RD

UB

8

MONITORED AUTO RESTART

1

31

GN

K2

GN

A2

23

GN

K1

BRN

A1

13

CHANNEL 1

WH

HL1 HL2 H22

13

23

14

24

31

CHANNEL 1

WH
BRN

K1
UB

YE

GN
GN

K2

GN

K3
CHANNEL 21 START/
FEEDBACK LOOP

GN

CMS-S30

N (0 Volt)

H73 H74

Y1

Y2

K1

*23-24 should not be used as safety output.

Y3

K1

K1

32

F2

MONITORED AUTO
RESTART

K1

K2

N (0 Volt)

	

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G-67

CM Series

Dimensions	
2-Wire Coded Magnetic Switches

(mm/in.)
CM-S11 Switch

CM-S11

52
2.04
22
0.86

28
1.1

6.4
0.25

Ø4.2
0.16
Ø8.1
0.32

3
0.11

G

14
0.55
SIDE

CM-S31 Switch
CM-S31

53
2.08
22
0.86

28
1.1

6.4
0.25

Ø4.2
0.16
Ø8.1
0.32

3
0.11

	

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G-68

Safety Interlock Switches

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13.5
0.53
SIDE

CM Series

Safety Interlock Switches

Dimensions (continued)	

(mm/in.)

Conventional Read Style Switches

CM-S1 Switch

CM-S1

5
0.2

8.5
0.334

13
0.51
0.34
0.013

NOTE: Actuator is same
dimension as switch.

ca. Ø5.8
0.23

Actuator

4.5
in
Center Offset m at s = 3
0.12
2.5
2.5
0.1
0.1

Son

Active Area
19.2
0.755 26.2
1.03

42
1.65

22
0.87
36
1.42

7
0.28

G

CM-S2 Switch

CM-S2

67.5
2.66

87.5
3.44

6
0.24

13
0.51

Active Area
12
0.47 9.5
0.374

NOTE: Actuator is same
dimension as switch.

2.5
0.1
Center Offset m at s = 3
0.12
2.5
2.5
0.1
0.1

Son

Ø5.5
0.22

24.5
0.97 6
0.24

Actuator

0.34
0.013

ca. Ø5.8
0.23

42
1.65

78 ± 1
3.07 ± 0.04

CM-S3 Switch
CM-S3

M30 x 1.5
0.06

	

42
1.65

36
1.42

8
0.31

ca. Ø5.8
0.23

Son
2.5
0.1

2.5
0.1

SW15
SW40

Active Area

Actuator

Center Offset m at s = 3
0.12

0.34
0.013

20
0.79

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G-69

CM Series

Safety Interlock Switches

Dimensions (continued)	

(mm/in.)

Conventional Read Style Switches (continued)
CM-S5
CM-S5 and CM-S521
52.0
2.05
22.0
0.87

14.0
0.55

3.0
0.12

28.0
1.10

SIDE VIEW

4.2
dia.
0.17
8.1
dia.
0.32
6.4
0.25

G
CM-S6

CM-S6 and CM-S621
19.0
0.75

4.9
0.19

19.0
0.75

5.0
0.20

SWITCH

	

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G-70

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19.0
0.75

82.5
3.25

82.5 68.0
3.25 2.68

5.0
0.20

4.9
0.19

7.2
0.28

19.0
0.75

73.0
2.87

7.2
0.28

ACTUATOR

CM Series

Safety Interlock Switches

Dimensions (continued)	

(mm/in.)

Universal Read Style Switches

CM-S221 Switch

CM-S221
13.5
0.53
78.0
3.07
27.2
1.07

Switch
9.8
0.39
87.5
3.44
9.8
0.39

27.2
1.07

Actuator
6.6
0.26

78.0
3.07
13.5
0.53

G
CM-S321/CM-S421

CM-S321 and CM-S421
Note: The CM-S321 includes a backing plate (not shown).
17.8 with backing
0.70 plate
33.0
1.30
19.5
0.77

4.0
0.16

79.0
3.11

60.0
2.36

9.5
0.37

5.3
0.21

16.0
0.63
4.0
0.16

79.0
3.11

60.0
2.36

9.5
0.37

4.4
0.17
SWITCH

CM-S521

33.0
1.30
19.5
0.77

16.0
0.63

5.3
0.21

17.8 with backing
0.70 plate

4.4
0.17
ACTUATOR

CM-S621

CM-S521 dimensions, please refer to the
✎ For
CM-S5 dimensions on the previous page.
CM-S621 dimensions, please refer to the
✎ For
CM-S6 dimensions on the previous page.

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G-71

CM Series

Safety Interlock Switches

Dimensions (continued)	

(mm/in.)

Control Units
CM-S4
CM-S4

CM-S4

75
2.95
75
75
2.95
2.95

45
1.77
45
45
1.77
1.77

105
4.13
105
105
4.13114.7
4.13
4.515
114.7
114.7
4.515
4.515

For 35 DIN rail
1.38
35 DIN rail
For 35
For
1.38 DIN rail
1.38

G

CM-S41

CM-S41
CM-S41

75
2.95
75
75
2.95
2.95

74
2.91
74
74
2.91
2.91

75
2.95
75
75
2.95
2.95

74
2.91
74
74
2.91
2.91
119
4.68
119
119
4.68
4.68

CM-S21 & CM-SE

CM-S21/SE
CM-S21/SE
22.5
0.88
22.5
22.5
0.88
0.88

84
3.3
84
84
3.3
3.3

119
4.68
119
119
4.68
4.68

	

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G-72

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22.5
0.88
22.5
22.5
0.88
0.88

84
3.3
84
84
3.3
3.3

CM Series

Safety Interlock Switches

Dimensions (continued)	
Control Units (continued)

(mm/in.)
CM-S30

CM-S30

114
4.5

22.5
0.885

99
3.9

35
DIN RAIL MOUNTING
1.38

G

	

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G-73

CM Series

Safety Interlock Switches

Ordering

G

Switch
Model
Construction
Contacts
Wiring Entry
Part No.
Control Units for 2-Wire Switches
CM-S21-24 (24 VAC/DC)
44536-0120
CM-S41-24 (24 VAC/DC)
44536-0140
CM-S41-110 (110 VAC or 230 VAC)
44536-0141
CM-SE-24 (24 VAC/DC)
44536-0170
2-Wire Switches
CM-S11-PC3
Plastic
2-wire system
3 m cable
44536-1100
CM-S11-PC5
Plastic
2-wire system
5 m cable
44536-1105
CM-S11-PC10
Plastic
2-wire system
10 m cable
44536-1110
CM-S11-PCC5
Plastic
2-wire system
connector + 5 m cable
44536-1159
CM-S31SC3
Stainless Steel
2-wire system
3 m cable
44536-3100
CM-S31SC5
Stainless Steel
2-wire system
5 m cable
44536-3105
CM-S31SCC5
Stainless Steel
2-wire system
connector + 5 m cable
44536-3159
Control Units for 1 N/C + 1 N/O Reed Style Switches
CM-S30 (24 VAC/DC)
44536-0030
CM-S4 (24 VAC/DC)
44536-0040
1 N/C + 1 N/O Reed Style Switches
CM-S1PC3
Plastic
1 N/C + 1 N/O
3 m cable
44536-0100
CM-S1PC5
Plastic
1 N/C + 1 N/O
5 m cable
44536-0105
CM-S2PC3
Plastic
1 N/C + 1 N/O
3 m cable
44536-0200
CM-S2PC5
Plastic
1 N/C + 1 N/O
5 m cable
44536-0205
CM-S3PC3
Plastic
1 N/C + 1 N/O
3 m cable
44536-0300
CM-S3PC5
Plastic
1 N/C + 1 N/O
5 m cable
44536-0305
CM-S5PC5
Plastic
1 N/C + 1 N/O
5 m cable
44536-0505
CM-S5PC10
Plastic
1 N/C + 1 N/O
10 m cable
44536-0510
CM-S6PC5
Plastic
1 N/C + 1 N/O
5 m cable
44536-0605
CM-S6PC10
Plastic
1 N/C + 1 N/O
10 m cable
44536-0610
Universal Reed Style Switches
(can be used with safety monitoring relays that accept 1N/C + 1N/O or 2NC switch contacts except the SR203, SR208, SR209)
CAUTION! Universal reed switches may be operated with a coded or non-coded actuator when using 2 NC contacts with a safety monitoring relay.
CM-S221PC5
Plastic
2 N/C + 1 N/O
5 m cable
44536-0221
CM-S221PCC5
Plastic
2 N/C + 1 N/O connector + 5 m cable
44536-0225
CM-S221PCC
Plastic
2 N/C + 1 N/O
no cable
44536-0226
CM-S521PC5
Plastic
2 N/C + 1 N/O
5 m cable
44536-0521
CM-S521PC10
Plastic
2 N/C + 1 N/O
10 m cable
44536-1521
CM-S621PC5
Plastic
2 N/C + 1 N/O
5 m cable
44536-0621
CM-S621PC10
Plastic
2 N/C + 1 N/O
10 m cable
44536-1621
CM-S321SC5
Stainless Steel
2 N/C + 1 N/O
5 m cable
44536-3221
Stainless Steel,
M12 connector
CM-S321SCC5
2 N/C + 1 N/O
44536-3229
backing plate
+ 5 m cable
Stainless Steel,
M12 connector,
CM-S321SCC
2 N/C + 1 N/O
44536-3220
backing plate
no cable
Stainless Steel, No
CM-S421SC5
2 N/C + 1 N/O
5 m cable
44536-4221
backing plate
Stainless Steel, No
M12 connector
CM-S421SCC5
2 N/C + 1 N/O
44536-4229
backing plate
+ 5 m cable
Recommended Safety Monitoring Relays for Universal Reed Style Switches
CM-S4, CM-S30, G9SA series, G9SX-AD, G9SX-BC, SR series
Spare Actuators/Accessories
Replacement Actuator for CM-S1, Red ABS Plastic
44536-0710
Replacement Actuator for CM-S2, Red ABS Plastic
44536-0720
Replacement Actuator for CM-S3, Red ABS Plastic
44536-0730
Replacement Actuator for CM-S5,CM-S521 Red ABS Plastic
44536-0750
Replacement Actuator for CM-S6, CM-S621 Red ABS Plastic
44536-0760
Replacement Actuator for CM-S11, Red ABS Plastic
44536-0711
Replacement Actuator for CM-S31, Red ABS Plastic
44536-0731
Replacement Actuator for CM-S221, Red ABS Plastic
44536-0721
Replacement Actuator for CM-S321, Stainless Steel, backing plate
44536-0741
Replacement Actuator for CM-S421, Stainless Steel, No backing Plate
44536-0751
Mounting Bracket for CM-S3
44536-0800

Select models are available for Rapid Delivery.

Mounting Brackets can be used with
✎ Universal
this product. See page G-210 for details.

Visit this product on www.sti.com for details.

G-74

www.sti.com/info

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Authorized Distributor:

Automation Control Systems
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• Power Supplies
Safety
• Laser Scanners • Safety Mats • Edges and Bumpers • Programmable Safety
Controllers • Light Curtains • Safety Relays • Safety Interlock Switches

C42I-E-01

08/14

Note: Specifications are subject to change.
Printed on recycled paper.

© 2014 Omron Electronics LLC

Printed in U.S.A.



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Keywords                        : CM Coded Magnetic Safety Interlock Switches and Controllers, STI, Omron
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Title                           : CM Coded Magnetic Safety Interlock Switches and Controllers Datasheet
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