Safety-Rated Interlock Switches

Safety rated interlock switches are safeguarding measures designed to improve safety in situations where guards or gates are used around hazardous machinery or equipment.

What are safety rated interlock switches used for?

In industrial situations, safety rated interlock switches prevent or permit the use of machinery, depending on safety conditions. They allow current to pass to the machine when it is safe to operate, for example when the machine's guard is closed. And they cut off the power if there's a potential hazard, such as a guard being opened. When a dangerous piece of equipment such as a metalworking machine is in operation, safety rated interlock switch might be used to ensure safety gates remain closed, excluding workers from hazardous areas.

Types of safety rated interlock switches

Safety rated interlock switches vary according to their lock type, maximum current and voltage, as well as their housing material. Guard-locking switches prevent access to machine parts that may still be in motion, even when the power has been cut. Hinge switches will close protective gates and guards in unsafe conditions.


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Description Price Connection Type Lock Style Normal State Configuration Housing Material Maximum AC Voltage Maximum DC Voltage Safety Contacts Range Actuator Included Lock Type Number of Head Directions Series Auxiliary Contacts Depth
RS Stock No. 252-3864
Mfr. Part No.XCSPA591
TWD1,291.00
Each
units
- Key 1NC/1NO Polyamide 240V 250V - Preventa - - 8 XCSPA - 30mm
RS Stock No. 132-9177
Mfr. Part No.XCSPA991
TWD1,597.00
Each
units
PG 11 Key 2NC/1NO Glass Fibre Reinforced PA 240V 250V 2NC/1NO Preventa Yes - 8 XCSPA - 94mm
RS Stock No. 132-9178
Mfr. Part No.XCSPA992
TWD1,658.00
Each
units
M16 Key 2NC/1NO Glass Fibre Reinforced PA 240V 250V 2NC/1NO Preventa Yes - 8 XCSPA - 94mm
RS Stock No. 666-4940
Mfr. Part No.XCSB502EX
TWD9,960.00
Each
units
Screw Key 1NC/2NO Zamak 240V 250V 1NC/2NO Preventa - - 8 XCSB - 44mm
RS Stock No. 700-4292
Mfr. Part No.XCSPA593
TWD1,100.00
Each
units
Screw Clamp Key NO/NC Glass Fibre Reinforced PA 240V 250V NO/NC Preventa - - 4 XCSPA - 30mm
RS Stock No. 263-3602
Mfr. Part No.XCSA512
TWD3,680.00
Each
units
Screw Key 1NC/2NO Zamak 240V 250V 1NC/2NO Preventa - - 8 XCSA - 44mm
RS Stock No. 666-4944
Mfr. Part No.XCSB702EX
TWD9,445.00
Each
units
Screw Key 2NC/1NO Zamak 240V 250V 2NC/1NO Preventa - - 8 XCSB - 44mm
RS Stock No. 279-6393
Mfr. Part No.XCSTA591
TWD1,400.00
Each
units
Screw Key 1NC/2NO Glass Fibre Reinforced PA 240V 250V 1NC/2NO Preventa - - 8 XCSTA - 30mm
RS Stock No. 814-6999
Mfr. Part No.XCSB703
TWD3,208.00
Each
units
Cable Key 2NC/1NO Zamak 240V 250V - Preventa Yes - 8 XCSB - 44mm
RS Stock No. 263-3652
Mfr. Part No.XCSC502
TWD4,842.00
Each
units
Screw Key 1NC/2NO Zamak 240V 250V 1NC/2NO Preventa - - 8 XCSC - 44mm
RS Stock No. 279-6400
Mfr. Part No.XCSTA791
TWD1,910.00
Each
units
Screw Key 2NC/1NO Glass Fibre Reinforced PA 240V 250V 2NC/1NO Preventa - - 8 XCSTA - 30mm
RS Stock No. 132-9174
Mfr. Part No.XCSPA492
TWD1,672.00
Each
units
M16 Key 2NC/1NO Polyamide 240V 250V 2NC/1NO Preventa Yes - 8 XCSPA - 94mm
RS Stock No. 133-0062
Mfr. Part No.XCSMP70L5
TWD2,748.00
Each
units
Cable Key 2NC/1NO Polyamide 240V 250V 2NC/1NO Preventa Yes - 1 XCSMP - 87mm
RS Stock No. 666-4938
Mfr. Part No.XCSA502EX
TWD7,856.00
Each
units
Screw Key 1NC/2NO Zamak 240V 250V 1NC/2NO Preventa - - 8 XCSA - 44mm
RS Stock No. 814-7015
Mfr. Part No.XCSMP79L2
TWD3,561.00
Each
units
Cable Key 2NC Polyamide 240V 250V - Preventa Yes - 1 XCSMP - 30mm
RS Stock No. 700-4302
Mfr. Part No.XCSPA793
TWD1,100.00
Each
units
Screw Clamp Key 2NC Glass Fibre Reinforced PA 240V 250V 2NC Preventa - - 4 XCSPA - 30mm
RS Stock No. 132-9180
Mfr. Part No.XCSPA491
TWD2,049.00
Each
units
PG 11 Key 2NC/1NO Polyamide 240V 250V 2NC/1NO Preventa Yes - 8 XCSPA - 94mm
RS Stock No. 814-7012
Mfr. Part No.XCSMP70L2
TWD3,639.00
Each
units
Cable Key 2NC/1NO Polyamide 240V 250V - Preventa Yes - 1 XCSMP - 30mm
RS Stock No. 198-734
Mfr. Part No.XCSTA891
TWD1,780.00
Each
units
Screw Key 3NC Glass Fibre Reinforced PA 240V 250V 3NC Preventa - - 8 XCSTA - 30mm
RS Stock No. 609-6697
Mfr. Part No.XCSA711
TWD3,735.00
Each
units
Screw Key 2NC/1NO Zamak 240V 250V 2NC/1NO Preventa - - 8 XCSA - 44mm