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庫存編號 179-4738
製造零件編號HS5D-12ZRNP
BrandIdec
HK$319.59
單位
PG13.5 Handle 1NO/2NC Metal (Head) 250V 30V 1NO+2NC - - Interlock - HS5D - 91mm
RS庫存編號 820-3500
製造零件編號GKMA33
BrandHoneywell
HK$761.92
單位
Cable Key 1NC/1NO Glass Filled PET 240V 250V - - Yes - 2 GKM - 16mm
RS庫存編號 700-4292
製造零件編號XCSPA593
HK$402.99
單位
Screw Clamp Key NO/NC Glass Fibre Reinforced PA 240V 250V NO/NC Preventa - - 4 XCSPA - 30mm
RS庫存編號 766-1605
製造零件編號XCSB702
HK$1,091.40
單位
- - NO/2NC Zamak 240V 250V NO/2NC Preventa Yes - - XCSB - 44mm
RS庫存編號 252-3864
製造零件編號XCSPA591
HK$335.68
單位
- Key 1NC/1NO Polyamide 240V 250V - Preventa - - 8 XCSPA - 30mm
RS庫存編號 252-3779
製造零件編號XCSC501
HK$1,132.90
單位
Screw Key 1NC/2NO Zamak 240V 250V 1NC/2NO Preventa - - 8 XCSC - 44mm
RS庫存編號 181-1200
製造零件編號106819 & LS-11-ZB
BrandEaton
HK$852.11
單位
Cage Clamp - NO/NC Insulated Material 415V 220V NO/NC - Yes Spring Lock 1 LS4 ZB - 33.4mm
RS庫存編號 179-4745
製造零件編號HS5L-VC44LM-G
BrandIdec
HK$1,128.35
單位
M20 Key 1NC/1NO (Lock Monitor), 2NC (Door Monitor) Metal (Head) 250V 30V 1NC/1NO (Lock Monitor), 2NC (Door Monitor) - - Spring Lock - HS5L - 127mm
RS庫存編號 744-8660
製造零件編號570220
BrandPilz
HK$388.00
單位
Screw Key 2NC Glass Fibre Reinforced Thermoplastic 240V - 2NC PSENmech Yes - 4 - - 33mm
RS庫存編號 754-8293
製造零件編號3SE5112-3QV10
BrandSiemens
HK$648.89
單位
M20 Key 2NC/1NO Metal 230V 230V 2NC Sirius - - 5 3SE5 1NO 37.3mm
RS庫存編號 179-4723
製造零件編號HS1L-DT44KMSR-R
BrandIdec
HK$1,699.70
單位
G1/2 Key 1NC (Door Monitor), 1NC (Lock Monitor), 1NC/1NC (Main) - 250V 30V 1NC (Door Monitor), 1NC (Lock Monitor), 1NC+1NC/1NC+1NC (Main) - - Spring Lock - HS1L - 129mm
RS庫存編號 609-6697
製造零件編號XCSA711
HK$995.28
單位
Screw Key 2NC/1NO Zamak 240V 250V 2NC/1NO Preventa - - 8 XCSA - 44mm
RS庫存編號 492-3474
製造零件編號DM2-CLIN-H
BrandFortress
HK$4,054.68
單位
- Key - Die Cast Zinc - - - MGard - CL-H&L 4 DM2 - 26mm
RS庫存編號 826-3880
製造零件編號208026
BrandIDEM
HK$2,857.14
單位
Cable Key 2NC/2NO Stainless Steel 240V - 2NC/1NO Kobra - - 4 K-SS-Ex 1NO 37.5mm
RS庫存編號 826-3909
製造零件編號204001
BrandIDEM
HK$849.35
單位
M20 Key 2NC/1NO Stainless Steel - - 2NC/1NO Kobra - - 8 KM-SS - 44mm
RS庫存編號 826-3899
製造零件編號204019
BrandIDEM
HK$2,408.88
單位
Cable Key 2NC Stainless Steel 250V 250V 2NC Kobra - - 8 KM-SS-Ex - 44mm
RS庫存編號 147-483
製造零件編號GKMA13
BrandHoneywell
HK$729.74
單位
Cable Key 1NC/1NO Glass Filled PET 50V 50V 1NC/1NO - - - 2 GKM - 16mm
RS庫存編號 820-3507
製造零件編號GKMB33
BrandHoneywell
HK$733.76
單位
Cable Key 1NC/1NO Glass Filled PET 240V 250V - - Yes - 2 GKM - 16mm
RS庫存編號 147-556
製造零件編號GKMB16
BrandHoneywell
HK$659.83
單位
Cable Key 2NC Glass Filled PET 50V 50V 2NC - - - 2 GKM - 16mm
RS庫存編號 179-4742
製造零件編號HS5L-VA44LM-G
BrandIdec
HK$1,128.35
單位
M20 Key 1NC/1NO (Door Monitor), 1NC/1NO (Lock Monitor) Metal (Head) 250V 30V 1NC/1NO (Door Monitor), 1NC/1NO (Lock Monitor) - - Spring Lock - HS5L - 127mm