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 Lock Type Actuator Included Housing Material Maximum AC Voltage Safety Contacts Maximum DC Voltage Range IP Rating Number of Head Directions Series Auxiliary Contacts
RS Stock No. 252-3864
Mfr. Part No.XCSPA591
TWD1,453.00
Each
units
- Key 1NC/1NO - - Polyamide 240V - 250V Preventa IP67 8 XCSPA -
RS Stock No. 263-3696
Mfr. Part No.XCSC702
TWD5,163.00
Each
units
Screw Key 2NC/1NO - - Zamak 240V 2NC/1NO 250V Preventa IP67 8 XCSC -
RS Stock No. 609-6704
Mfr. Part No.XCSB501
TWD4,674.00
Each
units
Screw Key 1NC/2NO - - Zamak 240V 1NC/2NO 250V Preventa IP67 8 XCSB -
RS Stock No. 132-9174
Mfr. Part No.XCSPA492
TWD1,543.00
Each
units
M16 Key 2NC/1NO - Yes Polyamide 240V 2NC/1NO 250V Preventa IP67 8 XCSPA -
RS Stock No. 609-6710
Mfr. Part No.XCSB701
TWD5,950.00
Each
units
Screw Key 2NC/1NO - - Zamak 240V 2NC/1NO 250V Preventa IP67 8 XCSB -
RS Stock No. 130-0881
Mfr. Part No.XY2CE4A010
TWD6,750.00
Each
units
- - NC, NO - - Stainless Steel (Cover), Zamak (Body) 240V - 250V Preventa XY2 IP66 - XY2CE -
RS Stock No. 700-4298
Mfr. Part No.XCSA703
TWD7,284.00
Each
units
Screw Clamp Key NO/2NC - - Zamak 240V NO/2NC 250V Preventa IP67 4 XCSA -
RS Stock No. 132-9180
Mfr. Part No.XCSPA491
TWD2,172.00
Each
units
PG 11 Key 2NC/1NO - Yes Polyamide 240V 2NC/1NO 250V Preventa IP67 8 XCSPA -
RS Stock No. 284-0771
Mfr. Part No.XCSTA792
TWD1,561.00
Each
units
Screw Key 2NC/1NO - - Glass Fibre Reinforced PA 240V 2NC/1NO 250V Preventa IP67 8 XCSTA -
RS Stock No. 814-7009
Mfr. Part No.XCSE7333
TWD21,095.00
Each
units
Cable Key 2NC/1NO - Yes Zamak 240V 1NC/1NO 250V Preventa IP67 8 XCSE -
RS Stock No. 132-9171
Mfr. Part No.XCSTA892
TWD1,776.00
Each
units
M16 Key 3NC - Yes Glass Fibre Reinforced PA 240V 3NC 250V Preventa IP67 8 XCSTA -
RS Stock No. 133-0069
Mfr. Part No.XCSE73117
TWD16,270.00
Each
units
- - - - Yes Zamak 240V 2NC 250V Preventa IP67 - XCS-E -
RS Stock No. 700-4302
Mfr. Part No.XCSPA793
TWD4,136.00
Each
units
Screw Clamp Key 2NC - - Glass Fibre Reinforced PA 240V 2NC 250V Preventa IP67 4 XCSPA -
RS Stock No. 814-6993
Mfr. Part No.XCSC703
TWD13,766.00
Each
units
Cable Key 2NC/1NO - Yes Zamak 240V - 250V Preventa IP67 8 XCSC -
RS Stock No. 666-4940
Mfr. Part No.XCSB502EX
TWD19,723.00
Each
units
Screw Key 1NC/2NO - - Zamak 240V 1NC/2NO 250V Preventa IP67 8 XCSB -
RS Stock No. 132-9177
Mfr. Part No.XCSPA991
TWD1,693.00
Each
units
PG 11 Key 2NC/1NO - Yes Glass Fibre Reinforced PA 240V 2NC/1NO 250V Preventa IP67 8 XCSPA -
RS Stock No. 666-4956
Mfr. Part No.XCSC702EX
TWD13,149.00
Each
units
Screw Key 2NC/1NO - - Zamak 240V 2NC/1NO 250V Preventa IP67 8 XCSC -
RS Stock No. 133-0062
Mfr. Part No.XCSMP70L5
TWD7,654.00
Each
units
Cable Key 2NC/1NO - Yes Polyamide 240V 2NC/1NO 250V Preventa IP67 1 XCSMP -
RS Stock No. 766-1618
Mfr. Part No.XCSB722
TWD6,037.00
Each
units
- Key 2NC/1NO - Yes Zamak 240V 2NC/1NO 250V Preventa IP67 8 XCSB -
RS Stock No. 279-6400
Mfr. Part No.XCSTA791
TWD3,874.00
Each
units
Screw Key 2NC/1NO - - Glass Fibre Reinforced PA 240V 2NC/1NO 250V Preventa IP67 8 XCSTA -