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Safety 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. Safety interlock switches can vary in lock type, maximum current and voltage, and housing material. The switches are specifically designed to meet high machine safety standards.

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.

Guard Lock – The guard stays locked till the risk of injury has passed

Mechanical Lock – Is an interlock that is physically connected to another device to prevent unintended actions

Magnetic – Used to monitor closing/ opening of machine guards, doors, and types of machinery

Trapped Key Interlock- Will only allow access to a hazardous/ Dangerous area when the key is inserted to the lock

Applications for Safety Interlock Switches

Automated Production Equipment
Material Handling Equipment
Automotive Plants
Pharmaceutical and Chemical Processing
Industrial Machinery
Machine Tools

804 Products showing for Safety Interlock Switches

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In Stock RS PRO Safety Interlock Switch, Plastic RS stock no. 179-7564 Subtotal (1 unit) R 715,95(exc. VAT) R 715,95/unit Quantity		-	Safety Interlock Switch	-	-	-	-	-	-	-	Plastic	-	-	-	-	IP67	-	-	-	No	-	95mm	31mm	-	No	31mm	-	-	-
In Stock Allen Bradley Guardmaster 440K Safety Interlock Switch, Key Actuator Included, Fibreglass Reinforced Polybutylene RS stock no. 792-3089 Mfr. Part No. 440K-T11338 Subtotal (1 unit) R 1 613,14(exc. VAT) R 1 613,14/unit Quantity	Allen Bradley Guardmaster	Key	Safety Interlock Switch	-	Interlock	Yes	2 NC	-	-	-	Fibreglass Reinforced Polybutylene Terephthalate	-	440K	-	-	IP67	-20°C	-	-	No	80°C	52mm	95mm	4	IEC/EN60204-1, ANSI B11.19, EN954-1, IEC/EN60947-5-1, AS4024.1, BG, CE, NFPA79, ISO14119, EN1088, ISO13849-1	32mm	-	-	-
In Stock Bernstein AG BF Safety Interlock Switch Actuator Included RS stock no. 189-5323 Mfr. Part No. 6050100001 Subtotal (1 unit) R 3 565,97(exc. VAT) R 3 565,97/unit Quantity	Bernstein AG	-	Safety Interlock Switch	-	-	Yes	-	-	-	-	-	-	BF	-	-	-	-	-	-	No	60°C	-	-	-	No	-	-	-	-
Stocked by manufacturer Allen Bradley 440T Interlock Switch, Trapped Key, Stainless Steel, Interlock RS stock no. 255-1573 Mfr. Part No. 440T-MSBLE110A Subtotal (1 unit) R 5 765,48(exc. VAT) R 5 765,48/unit Quantity	Allen Bradley	Trapped Key	Interlock Switch	-	Interlock	-	-	-	-	-	Stainless Steel	-	440T	-	-	-	-40°C	-	-	No	200°C	27.4mm	-	-	CE	48.5mm	-	-	-
In Stock Telemecanique Sensors XCSPA Safety Rated Interlock Switch, Keyed, Fibreglass Reinforced Nylon, Key RS stock no. 132-9178 Mfr. Part No. XCSPA992 Subtotal (1 unit) R 1 452,61(exc. VAT) R 1 452,61/unit Quantity	Telemecanique Sensors	Keyed	Safety Rated Interlock Switch	-	Key	No	2 NC, NO	-	-	-	Fibreglass Reinforced Nylon	-	XCSPA	240V ac	250V dc	IP67	-25°C	-	6A	No	70°C	94mm	30mm	8	UL, ISO 14119, EN 1088, EN/IEC 60947-5-1, EN/ISO 12100, CSA, EN/IEC 60204-1, TC, CSA C22.2 No. 14, UL 508	30mm	-	-	-
In Stock SICK i10 Safety Interlock Switch, Electromagnetic, Fibreglass Reinforced Thermoplastic, Electromagnetic RS stock no. 285-9558 Mfr. Part No. i10-E0233 Lock Subtotal (1 unit) R 5 423,59(exc. VAT) R 5 423,59/unit Quantity	SICK	Electromagnetic	Safety Interlock Switch	-	Electromagnetic	No	2 NC	-	-	-	Fibreglass Reinforced Thermoplastic	-	i10	230V ac	24V dc	IP67	-20°C	-	4A	No	55°C	40mm	192mm	4	CE	42mm	-	-	-
In Stock Allen Bradley 440G-MT Interlock Switch, Actuator Actuator Included, Guard RS stock no. 264-9467 Mfr. Part No. 440G-MT47045 Subtotal (1 unit) R 5 862,27(exc. VAT) R 5 862,27/unit Quantity	Allen Bradley	Actuator	Interlock Switch	-	Guard	Yes	NC, 2 NO	-	-	-	-	-	440G-MT	24V ac	24V dc	IP67	-25°C	-	-	No	60°C	-	-	-	CE, EN ISO 14119	-	-	-	-
In Stock Allen Bradley 440K Safety Rated Interlock Switch, Keyed Actuator Included, Fibreglass Reinforced Polybutylene RS stock no. 178-181 Mfr. Part No. 440K-T11090 Subtotal (1 unit) R 1 188,17(exc. VAT) R 1 188,17/unit Quantity	Allen Bradley	Keyed	Safety Rated Interlock Switch	-	Interlock	Yes	1 NO	-	-	-	Fibreglass Reinforced Polybutylene Terephthalate	-	440K	-	-	IP67	-20°C	1	3mA	No	80°C	52mm	95mm	4	ANSI B11.19, IEC/EN 60204-1, EN 1088, AS 4024.1, CE, IEC/EN 60947-5-1, EN 954-1, NFPA 79, TUV, ISO 14119, ISO 13849-1	32mm	-	-	-
In Stock Allen Bradley 440G Interlock Switch, Guard RS stock no. 264-9457 Mfr. Part No. 440G-L07326 Subtotal (1 unit) R 16 095,96(exc. VAT) R 16 095,96/unit Quantity	Allen Bradley	-	Interlock Switch	-	Guard	No	-	-	-	-	-	-	440G	24V ac	24V dc	-	-	-	-	No	-	-	-	-	No	-	-	-	-
In Stock Allen Bradley Guardmaster ATEX 440K Safety Interlock Switch, Keyed Actuator Included, Fibreglass Reinforced Polybutylene RS stock no. 277-2123 Mfr. Part No. 440K-H11145 Subtotal (1 unit) R 6 257,89(exc. VAT) R 6 257,89/unit Quantity	Allen Bradley Guardmaster	Keyed	Safety Interlock Switch	-	Interlock	Yes	2 NC	-	-	-	Fibreglass Reinforced Polybutylene Terephthalate	-	440K	250V ac	250V dc	IP67	-20°C	-	-	ATEX	80°C	52mm	95mm	4	IEC/EN 60204-1, EN 954-1, IEC/EN 60947-5-1, TUV, NFPA 79, ISO 14119, AS 4024.1, ANSI B11.19, CE, ISO 13849-1, EN 1088	32mm	-	-	-
Temporarily out of stock IDEM M-ISP Safety Interlock Switch, Keyed, Stainless Steel, Interlock RS stock no. 185-7248 Mfr. Part No. M-ISP-SKR-25 (A101) Subtotal (1 unit) R 9 667,30(exc. VAT) R 9 667,30/unit Quantity	IDEM	Keyed	Safety Interlock Switch	-	Interlock	-	1 NO/2 NC	-	-	-	Stainless Steel	-	M-ISP	690V ac	-	-	-20°C	-	25A	No	40°C	176mm	112mm	-	ISO 13849-1, EN62061, UL 508, EN60204-1, EN 1088, IEC 60947-5-1	169mm	-	-	-
In Stock SICK i10 Safety Interlock Switch, Electromagnetic, Fibreglass Reinforced Thermoplastic, Electromagnetic RS stock no. 285-9563 Mfr. Part No. i10-M0233 Lock Subtotal (1 unit) R 5 422,39(exc. VAT) R 5 422,39/unit Quantity	SICK	Electromagnetic	Safety Interlock Switch	-	Electromagnetic	No	-	-	-	-	Fibreglass Reinforced Thermoplastic	-	i10	230V ac	24V dc	IP67	-20°C	-	4A	No	55°C	40mm	192mm	4	CE	42mm	-	-	-
Stocked by manufacturer SICK I15 Safety Switch, Power, Fibreglass Reinforced Thermoplastic, i15 Lock RS stock no. 285-1831 Mfr. Part No. i15-EM0123 Lock Subtotal (1 unit) R 6 583,30(exc. VAT) R 6 583,30/unit Quantity	SICK	Power	Safety Switch	-	i15 Lock	No	1 NC, 2 NC	-	-	-	Fibreglass Reinforced Thermoplastic	-	I15	230V ac	24V dc	IP67	-20°C	-	4A	No	55°C	37.5mm	96mm	4	CE	42mm	-	-	-
In Stock SICK RE2 Safety Interlock Switch, Magnet Actuator Included, Vistal, Magnet RS stock no. 285-8971 Mfr. Part No. RE21-SA03 Subtotal (1 unit) R 1 062,18(exc. VAT) R 1 062,18/unit Quantity	SICK	Magnet	Safety Interlock Switch	-	Magnet	Yes	1 NC, 1 NO	-	-	-	Vistal	-	RE2	230V ac	30V dc	IP67	-30°C	-	400mA	No	60°C	13mm	88mm	5	CE	25mm	-	-	-
In Stock Allen Bradley Guardmaster 440K Safety Rated Interlock Switch, Keyed Actuator Included, Fibreglass Reinforced RS stock no. 489-4887 Mfr. Part No. 440K-E33041 Subtotal (1 unit) R 854,69(exc. VAT) R 854,69/unit Quantity	Allen Bradley Guardmaster	Keyed	Safety Rated Interlock Switch	-	Interlock	Yes	2 NC	-	-	-	Fibreglass Reinforced Polybutylene Terephthalate	-	440K	18V ac	-	IP67	-20°C	-	3mA	No	80°C	29mm	75mm	8	EN, CE	25mm	-	-	-
In Stock Schmersal AZ15 Safety Interlock Switch, Keyed, Fibreglass Reinforced Thermoplastic, Interlock RS stock no. 623-2972 Mfr. Part No. AZ15ZVRK-M20-2254 Subtotal (1 unit) R 1 089,86(exc. VAT) R 1 089,86/unit Quantity	Schmersal	Keyed	Safety Interlock Switch	-	Interlock	No	NC	-	-	-	Fibreglass Reinforced Thermoplastic	-	AZ15	230V ac	-	IP67	-30°C	-	4A	No	80°C	75mm	30mm	3	UL, IEC, VDE, CSA	52mm	-	-	-
Stocked by manufacturer Allen Bradley 440G-MT Interlock Switch, Actuator Actuator Included, Guard RS stock no. 264-9468 Mfr. Part No. 440G-MT47048 Subtotal (1 unit) R 9 198,83(exc. VAT) R 9 198,83/unit Quantity	Allen Bradley	Actuator	Interlock Switch	-	Guard	Yes	NC, 2 NO	-	-	-	-	-	440G-MT	24V ac	24V dc	IP67	-25°C	-	-	No	60°C	-	-	-	CE, EN ISO 14119	-	-	-	-
In Stock Allen Bradley Guardmaster 440K Safety Interlock Switch, Keyed Actuator Included, Fibreglass Reinforced Polybutylene RS stock no. 792-3082 Mfr. Part No. 440K-T11467 Subtotal (1 unit) R 1 341,10(exc. VAT) R 1 341,10/unit Quantity	Allen Bradley Guardmaster	Keyed	Safety Interlock Switch	-	Interlock	Yes	1 NO	-	-	-	Fibreglass Reinforced Polybutylene Terephthalate	-	440K	-	-	IP67	-20°C	-	-	No	80°C	52mm	95mm	4	BG, EN954-1, AS4024.1, IEC/EN60947-5-1, NFPA79, CE, ISO13849-1, EN1088, ISO14119, ANSI B11.19, IEC/EN60204-1	32mm	-	-	-
Currently unavailable SICK RE300 Safety Interlock Switch, Magnet Actuator Included, Valox, Magnet RS stock no. 285-8984 Mfr. Part No. RE300-DA10P Subtotal (1 unit) R 3 348,33(exc. VAT) R 3 348,33/unit Quantity	SICK	Magnet	Safety Interlock Switch	-	Magnet	Yes	1 NO, 1 NC	-	-	-	Valox	-	RE300	230V ac	30V dc	IP67	-10°C	-	30mA	No	55°C	19mm	82mm	5	CE	19mm	-	-	-
In Stock Allen Bradley 440G-MT Interlock Switch, Actuator Actuator Included, Guard RS stock no. 264-9466 Mfr. Part No. 440G-MT47044 Subtotal (1 unit) R 5 600,42(exc. VAT) R 5 600,42/unit Quantity	Allen Bradley	Actuator	Interlock Switch	-	Guard	Yes	NC, 2 NO	-	-	-	-	-	440G-MT	24V ac	24V dc	IP67	-25°C	-	-	No	60°C	-	-	-	CE, EN ISO 14119	-	-	-	-