Safety Interlock Switches
MC-S Series
MC-S
Rev. 9.10
Compact Coded Magnetic Safety
Interlock Switch and Control Unit
• Dual channel, fully monitored system; meets Category 3 when
single MC-S Series switch and control unit are used; MC-S6
meets Category 4
• External Device Monitoring (EDM) with automatic or manual reset
• NEMA 6 switch enclosures in plastic or stainless steel with
connector satisfy most application requirements
• Magnetically coded switches are tamper resistant to common
magnets
• Misalignment tolerance of (5 and 9 mm) reduces nuisance tripping
• A large number of switches may be used with a MC-S Series control unit
• MC-S6 control unit provides individual monitoring and indication for up
to 6 switches and a N/O delayed output
• Mechanical interlock switches may be used with a MC-S Series control
• MC-S Series controls may replace a safety relay in some applications
r
C
US
• Auxiliary contacts available for individual guard door monitoring on MC-S switches
Conforms to EN954-1, EN1088, EN60204-1
UL and C-UL listed
Actual Size
Description
Type 1 Sensor
Type 2 Sensor
1.89 in.
48 mm
0.75 in
19 mm
.98 in.
25 mm
MC S Series
3.23 in
82 mm
IP 67
MADE IN EC
Omron Scientific Technologies, Inc.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
For the Latest Information
On the Internet: www.sti.com
G
The MC-S Series is a tamper
resistant non-contact switch
that operates with its own
control unit. As a fully monitored
dual channel system, a single
MC-S Series switch and MC-S
Series Control Units 1 or 2
combine to fulfill Category 3
requirements. Control Unit 6
with 2 to 6 MC-S switches fulfills
Category 4 requirements for the
N/O outputs and Category 3
MC S3Series
for the N/O delayed output.
The Control Units provide
EDM (External Device
Monitoring, also called MPCE
monitoring) with an automatic
or manual reset. This allows the
Control Units to replace a safety
relay in some applications.
The NEMA 6 encapsulated
IPdesign
67
makes it ideal for harsh
MADEenvironments.
IN EC
The Control Units can be
used with a large number of
MC-S switches for applications
with multiple guard doors. The
Control Unit provides individual
monitoring and LED indication
for up to six MC-S switches.
Mechanical switches and
MC-S switches may be used
together with a single MC-S
Control Unit for applications
requiring both non-contact and
mechanical safety interlock
switches.
G1
MC-S Series
Safety Interlock Switches
Operation
Operating Principle
On presenting the actuator to the switch,
the coded, high intensity magnetic field
from the actuator causes the contacts to
close. On removing the actuator (opening
the door), the safety contacts open, isolating the machine.
Connector Configurations
MC-SS2 Stainless Steel
MC S Series
8-Pin Male,
Micro DC, M12
SWITCH
N/C
Blue
IP 67
MADE IN EC
Red
M12
Green (ground)
N/O
Grey
Yellow
Black
Mounting Examples
White
Auxiliary Circuit - not for safety use (N/O or N/C)
8-Pin Female,
Micro DC, M12
INCLUDED CABLE
Red
Operation: target face to target face
Blue
M12
Grey
G
Green
White
Black
Yellow
8-Pin Female,
Micro DC, M12
ACCESSORY CABLE 44512-0620
Contact Arrangements
White Brown
M12
NOTE: ACTUATOR MUST NOT STRIKE SENSOR
Blue
Guard Stops
Face to face
distance (mm)
Green
Pink
MC-S
9
Grey
Type 2
5
0mm
Red
Yellow
Type 1 & 3
3 4
Misalignment
tolerance (mm)
Misalignment Tolerance (when mounted
min 1mm
on non- ferrous materials).
max 3mm - type 1 & 3
max 4mm - type 2
MC-S3
Recommended gap between sensor and actuator.
4-Pin Male,
Micro DC, M12
SWITCH
Safety Circuit 1 (N/C)
12
11
M12
Safety
Circuit 2
(N/O)
2
1
3
4
33
34
4-Pin Female,
Micro DC, M12
ACCESSORY CABLE 44512-0600
Brown
✎
M12
Universal Mounting Brackets
can be used with this product.
See accessories on www.sti.com
Black
G2
Omron Scientific Technologies, Inc.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
White
For the Latest Information
On the Internet: www.sti.com
1
2
4
3
Blue
MC-S Series
Safety Interlock Switches
Applications
Typical applications are on sliding guard
doors or swinging guard doors.
Red
Green
Yellow
Blue
MC-S
Actuator
1 2 3 4
MC-S
Sensor
MC-SS2
Sensor
MC-S
Control Unit
Black
White
Auxiliary Contacts
for Indication - N/C or N/O
MC-S Series
Sensor
MC-S Series
Actuator
MC-S
Control Unit
Auxiliary Contacts
for Indication - N/C or N/O
White
Momentary
Push Button
Momentary
Push Button
Yellow
K1 (Aux)
START
STOP
Blue
Yellow
1 2 3 4
Black
24 VAC/DC
Guard
Closed
Green
Red
Gray
Yellow
Blue
MC-SS2
Actuator
L1
L2 L3
G
K2 (Aux)
Green
2 1 A1 +
33 23 21
K1
MC-S2 Series
Control
Unit
3 4 A2 - X1 X2
Green
K2
32 14 24
Fuse
CONTACT
PROTECTION
E.G. Thermal
Cut Out
Fuse
K1 (Aux)
Red
RESET
K2 (Aux)
Momentary
Push Button
K1
M
K2
Single sensor and two contactors with manual reset and EDM (External Device Monitoring). Machine will start when
guard is closed, auxiliary contacts at K1 and K2 are closed (i.e. both contactors are off), reset button is pressed and
then start button is pressed.
Blue
Yellow
START
STOP
Yellow
Momentary
Push Button
Momentary
Push Button
Green
K1 (Aux)
K2 (Aux)
L1
Red
MC-S Series
Sensor 1
Guard
Closed
MC-S Series
Actuator 1
24 VAC/DC
Green
3 4 A2 - X1 X2
32 14 24
Yellow
Green
Green
L1
K1
K1 (Aux)
Blue
MC-S Series
Sensor 3
MC-S Series
Actuator 3
Guard
Closed
L2 L3
L2 L3
31 13 23
MC-S2 Series
Control
Unit
Yellow
Red
MC-S Series
Sensor 2
Guard
Closed
MC-S Series
Actuator 2
Blue
2 1 A1 +
K2 (Aux)
Red
K2
CONTACT
PROTECTION
E.G. Thermal
Cut Out
Fuse
Fuse
RESET
Momentary
Push Button
K1
K2
M
M
Three sensors and two contactors with manual reset and EDM (External Device Monitoring). Machine will start
when all guards are closed, reset button is pressed and then start button is pressed. NOTE: The use of multiple
sensors connected to a single control unit is only suitable in applications where each guard door is always
opened and then shut individually. Otherwise some single faults may not be detected and unintentional lockout
reset may occur if two or more guard doors are open at the same time.
Omron Scientific Technologies, Inc.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
For the Latest Information
On the Internet: www.sti.com
G3
MC-S Series
Safety Interlock Switches
Specifications
Electrical
Power Supply:
Power Consumption:
Safety Inputs:
Max Input Resistance:
Min. Approach Speed:
Safety Contacts:
Auxiliary Contacts:
Auxiliary Contact Rating:
Relay Outputs:
Auxiliary Contact of Controls:
N/C Operating Distance:
Max Switched AC:
Max Switched DC:
Min Switched Current/Voltage:
Impulse Withstand Voltage:
Max Drop-Out Time:
Max Output Fuse:
G
Reset Mode:
External Device Monitoring:
Mechanical
Mounting:
Case Material:
Max Wire Size:
Weight:
Color:
Indication:
Mechanical Life:
Environmental
Protection:
Operating Temperature:
MC-S Series Control Units
24 VAC/DC ± 10% - Control 1
24 VDC ± 10% or 24/110/220 VAC - Control 2 & 6
< 2 VA Control 1; < 4 VA - Control 2 & 6
1 N/O + 1 N/C for controls 1 & 2 (x6 for Control 6)
Red/Blue - 200 Ω; Green/Yellow - 150 Ω
Typically 10-17 mm/sec.
—
—
—
1 N/O + 1 Semi Aux. - Control 1
2 N/O + 1 N/C Aux. - Control 2
100 mA, 24 VDC and 230 VAC - Control 1
2 A, 24 VDC and 230 VAC - Control 2 and 6
—
4 A/250 VAC
2 A/30 VDC
10 mA/10 V AC/DC
2500 V
25 m/sec
5 A quick acting on AC, 3 A quick acting on DC
(3 A quick acting on AC/DC Control 6)
Automatic/Manual
N/C loop between x1 and x2
35 mm (1.38 in.) DIN Rail
Polycarbonate
2 x 1 mm (20 AWG) stranded
2 x 1.5 mm (15 AWG) solid
147 g (5.2 oz.) - Control 1, 590 g (21 oz.) - Control 2,
990 g (35 oz.) - Control 6
Red
LED 1: Green = Output Closed
LED 2: Red = Power On Controls 1 & 2
LED 2: Green = Power on Control 6
1 x 106
IP40 (NEMA 1)
-10 to 55°C (14 to 131°F)
MC-S Series Switches
—
—
—
—
1 N/C + 1 N/O
1 N/C or 1 N/O
100 mA, 24 VDC and 230 VAC
Control 6 Delayed Output (0.6-30 s)
3 N/O + 1 N/O Delayed, 1 N/C Aux. - Control 6
—
On = 5 mm; Off = 11 mm Type 1 and Type 3
On = 9 mm; Off = 12 mm Type 2
On = 10 mm; Off = 13 mm Type 2 stainless
100 mA/230 VAC
100 mA/24 VDC
—
—
—
—
—
—
4 x M4 screws, M18 x 1 mm pitch for MC-S3
ABS plastic - Type 1 & 2; nylon - Type 3;
stainless steel - Type 2 stainless
Pre-wired cable to 10 m MC-S1, S2,
Connector MC-SS2, MC-S3
100 g (3.5 oz.) plastic, 600 g (1-lb. 5-oz.) steel
Red or Stainless steel
—
—
1 x 106
IP67 (NEMA 6); (IP68 for stainless)
-10 to 55°C (14 to 131°F) Plastic
-25 to 125°C (-13 to 257°F) Stainless
90% RH at 50°C (122°F)
Humidity:
90% RH at 50°C (122°F)
Compliance
Standards:
EN954-1, EN1088, EN60204-1
Approvals/Listings:
CE marked for all applicable directives, UL and C-UL
Specifications are subject to change without notice.
Note:The safety contacts of the Omron 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.
G4
Omron Scientific Technologies, Inc.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
For the Latest Information
On the Internet: www.sti.com
7
7
0.28
4.5
0.18 19
0.75
5
0.2
7
4.5
0.18
19
0.75
0.28 19Series
MC-S
0.75
Dimensions
45.5
1.79
99
3.9
69
2.72
35 DIN rail
1.38 Mounting
75
2.95
57
2.24
LED's
50
1.97
FERROTEK REMOTE
INDICATOR UNIT
Control Unit 1
Control Unit 2
90
3.54
ACTUATOR
=
=
82
3.23
73
2.87
82
3.23
=
=
5
0.2
5
0.2
Switch - Type 2
4.5
0.18
19
0.75
99
3.9
4.4
0.17
5
8
0.20 0.31
8
350.31
DIN rail
1.38 Mounting
82
7
3.23
0.28
62.5
2.46
9
0.35
4.5
0.18
24
0.94
ACTUATOR
22
0.87
4.8
0.19
G
Actuator - Type 1
7
0.28 60
2.36 4.549
0.18
1.93
Ø5.1
0.20
Switch - Type 3
=
7373
60
2.87
2.87
82 2.36 49
82
3.23
3.23
1.93
7
4.5
0.28 19
0.18
0.75
Actuator - Type 2
=
99
3.9
35 DIN rail
33.5
1.32 16.8
0.66
1.38 Mounting
39.3
1.5575
78.5
2.95
3.1
39.3
1.55
19.5
0.77
7
16.8 0.28
0.66
Switch - Type 2
Stainless steel
19
0.75
M18 x 1
82
3.23
73
2.87
Ø5.1
82
0.20 3.23
69
5
2.72
0.2
75
2.95
LED's
62.5
5
0.2
16
0.63
2.36
50
1.97
7
0.28
16.8
0.66
16
0.63
57 695
2.242.72
0.2
39.3
1.55
39.3
1.55
7
0.28 19
0.75
M18 x 1
10
Actuator - Type
0.393
Ø30
1.18
19
0.75
10
0.39
36 38
1.42 1.5
38
1.5
FERROTEK CONTROL UNIT
33.5
1.32
16.8
0.66
7 4.5
0.28
0.18
=
7
7
0.28
5
4.5
0.2 5
0.18 19 19
0.2
0.75 0.75
82
3.23
9
0.35
Switch - Type 1
7
7
82
3.23
RROTEK CONTROL UNIT
22.5
0.89
4.5
0.18
7
0.28
68
2.68
68 68
2.68
2.68
=
M4
7
=
82
3.23
SWITCH
4.5
0.18
=
=
=
8
7
0.28
25
0.98
12
0.47
25
0.98
Control Unit 6
12
0.47
22
48 0.87
1.89
24
0.94
4.2
0.17
84
3.31
6.0
0.24
M4
13
0.51
4.8
0.19
48
1.89
118
4.65
4.5
4.2
0.18
0.17
SWITCH
7
0.28
35
1.38
Din Rail
Mounting
73
2.87
13
0.51
82
3.23
(mm/in.)
36
1.42
120
4.72
38
1.5
FERROTEK CONTROL UNIT
22.5
0.89
19
Safety Interlock Switches
0.75
24
0.94
5
0.2
Ø30
1.18
36
1.42
57
2.24
LED's
78.5
3.1
4.4
0.17
50
FERROTEK REMOTE
1.97
INDICATOR
UNIT
FERROTEK REMOTE
INDICATOR UNIT
19.5 7
0.77 0.28
Actuator - Type 2
Stainless steel
Omron Scientific Technologies, Inc.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
For the Latest Information
On the Internet: www.sti.com
G5
MC-S Series
Safety Interlock Switches
Ordering
Model
Contacts
Wiring Entry
Part No.
CONTROL UNITS
Unit 1
MC-S1 Control (24VAC/DC) (1 switch input)
1 N/O + 1 N/C Semi Aux.
44531-0010
2 N/O + 1 N/C Aux.
44531-0020
3 N/O + 1 N/O Delayed, 1 N/C Aux.
44531-0040
Unit 2
MC-S2 Control (24VAC/DC + 110/220VAC) (1 switch input)
Unit 6
MC-S6 Control (24VAC/DC + 110/220VAC) (6 switch inputs)
PLASTIC CASE SWITCHES
Type 1
MC-S1PC3 Switch & Actuator
1 N/C + 1 N/O
3 m cable
44531-0100
MC-S1PC10 Switch & Actuator
1 N/C + 1 N/O
10 m cable
44531-0110
MC-S1XCPC3 Switch & Actuator w/ signal contacts
2 N/C + 1 N/O (N/C Aux. Contact)
3 m cable
44531-0150
MC-S1XOPC3 Switch & Actuator w/ signal contacts
1 N/C + 2 N/O (N/O Aux. Contact)
3 m cable
44531-0155
MC-S1XCPC10 Switch & Actuator w/ signal contacts
2 N/C + 1 N/O (N/C Aux. Contact)
10 m cable
44531-0160
MC-S1XOPC10 Switch & Actuator w/signal contacts
1 N/C + 2 N/O (N/O Aux. Contact)
10 m cable
44531-0165
Type 2
G
MC-S2PC3 Switch & Actuator
1 N/C + 1 N/O
3 m cable
44531-0200
MC-S2PC10 Switch & Actuator
1 N/C + 1 N/O
10 m cable
44531-0210
MC-S2XCPC3 Switch & Actuator w/ signal contacts
2 N/C + 1 N/O (N/C Aux. Contact)
3 m cable
44531-0250
MC-S2XOPC3 Switch & Actuator w/signal contacts
1 N/C + 2 N/O (N/O Aux. Contact)
3 m cable
44531-0255
MC-S2XCPC10 Switch & Actuator w/signal contacts
2 N/C + 1 N/O (N/C Aux. Contact)
10 m cable
44531-0260
MC-S2XOPC10
1 N/C + 2 N/O (N/O Aux. Contact)
10 m cable
44531-0265
1 N/C + 1 N/O
connector
44531-0300
MC-SS2XOSCC5
1 N/C + 2 N/O (N/O Aux. Contact)
connector + 5 m cable
44531-0450
MC-SS2XCSCC5
2 N/C + 1 N/O (N/C Aux. Contact)
connector + 5 m cable
44531-0455
MC-SS2X0SC6
1 N/C + 2 N/O (N/O Aux. Contact)
6 m cable
44531-0460
MC-SS2XCSC6
2 N/C + 1 N/O (N/C Aux. Contact)
6 m cable
44531-0465
Type 3
MC-S3PCC Switch & Actuator
STAINLESS STEEL CASE SWITCHES
Spare MC-S Type 1 Actuator, Plastic
44531-0710
Spare MC-S Type 2 Actuator, Plastic
44531-0720
Spare MC-S Type 3 Actuator, Plastic
44531-0730
Spare MC-SS2 Actuator, Stainless Steel
44531-0740
Mounting Brackets
✎ Universal
can be used with this product.
See accessories on www.sti.com
G6
Omron Scientific Technologies, Inc.
USA Tel. 1/888/510-4357 Canada Tel. 1/866/986-6766
For the Latest Information
On the Internet: www.sti.com