Allen Bradley Guardmaster 440K Safety Interlock Switch, Keyed Actuator Included, Fibreglass Reinforced Polybutylene

RS stock no.:: 873-2247
Mfr. Part No.:: 440K-C21067
Manufacturer:: Allen Bradley Guardmaster

Allen Bradley Guardmaster 440K Safety Interlock Switch, Keyed Actuator Included, Fibreglass Reinforced Polybutylene

Subtotal (1 unit)*

R 1 905,51

(exc. VAT)

R 2 191,34

(inc. VAT)

FREE delivery for orders over R 1,500.00

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Ready to ship from 24 September 2026

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Units	Per unit
1 +	R 1,905.51

*price indicative

RS stock no.:: 873-2247
Mfr. Part No.:: 440K-C21067
Manufacturer:: Allen Bradley Guardmaster

Specification

Technical data sheets

Legislation and Compliance

Product Details

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Select all	Attribute	Value
	Brand	Allen Bradley Guardmaster
	Product Type	Safety Interlock Switch
	Lock Style	Keyed
	Lock Type	Keyed
	Actuator Included	Yes
	Safety Contacts	1 NO
	Housing Material	Fibreglass Reinforced Polybutylene Terephthalate
	Series	440K
	Minimum Operating Temperature	-20°C
	IP Rating	IP67
	Maximum Operating Temperature	80°C
	Hazardous Area Certification	No
	Number of Head Directions	8
	Width	31mm
	Standards/Approvals	ANSI B11.19, AS4024.1, CCC, CE Listed, cULus Listed, EN1088, EN954-1, IEC60947-5-1, IEC/EN60204-1, IEC/EN60947-5-1, ISO13849-1, ISO14119, NFPA79, TUV
	Depth	30.4mm
	Length	90.5mm

	Select all
	Brand Allen Bradley Guardmaster
	Product Type Safety Interlock Switch
	Lock Style Keyed
	Lock Type Keyed
	Actuator Included Yes
	Safety Contacts 1 NO
	Housing Material Fibreglass Reinforced Polybutylene Terephthalate
	Series 440K
	Minimum Operating Temperature -20°C
	IP Rating IP67
	Maximum Operating Temperature 80°C
	Hazardous Area Certification No
	Number of Head Directions 8
	Width 31mm
	Standards/Approvals ANSI B11.19, AS4024.1, CCC, CE Listed, cULus Listed, EN1088, EN954-1, IEC60947-5-1, IEC/EN60204-1, IEC/EN60947-5-1, ISO13849-1, ISO14119, NFPA79, TUV
	Depth 30.4mm
	Length 90.5mm

COO (Country of Origin):: DO

Allen Bradley Guardmaster Cadet 3 Safety Interlock Switch

Improve protection for personnel and keep your machine guard door secure with the Cadet 3 Safety Interlock Switch by Allen Bradley Guardmaster.

This compact and versatile interlock switch is tongue (or key) operated and is specifically designed to be fitted on the leading edge of hinged, sliding, and lift-off guard doors. It is perfectly suited for small, lightweight guards. The Cadet 3 is electrically linked to the machine’s control circuit so that that the power supply is disconnected and isolated when the barrier is released, providing critical protection by ensuring that personnel cannot access hazardous areas where machinery is running.

The Cadet 3 features dual entry slots and a rotatable head, and it can offer up to eight different actuator entry points for superior application flexibility. It is easy to install and easy to mount due to the unique compact housing, which has industry standard DIN 50047 fixing centres. The switch can be operated by inserting a specially profiled stainless-steel key, which is permanently fixed to the guard door. This interlock device can also be used on small radius doors (60mm) with the semi flexible key. A blanking plug is supplied for the unused key entry.

• Compact tongue-operated interlock switch with 3 sets of contacts on a DIN 50047 footprint

• Dual entry and rotational head allows up to 8 options for actuator entry position

• Forced guided contacts - complies with EN 1088, IEC 947-5-1

• Industry standard DIN 50047 fixing centres (20/22mm)

• Environmentally sealed to IP67: fully protected against ingress of dust and can withstand some immersion in water

• Resilient housing material comprised of glass filled PBT

• Dimensions: H30.4 x W31 x D90.5mm

• Optional Metal Actuator Guide (GD2 kit) for more demanding applications (stock no. 357-9341)

The Allen Bradley Guardmaster range of machine safety devices offers flexible, cost-effective solutions to boost efficiency and productivity in the workplace, and enhance safe access for your personnel.

Standards

EN954-1, ISO13849-1, IEC/EN60204-1, NFPA79, EN1088, ISO14119, IEC/ EN60947-5-1, ANSI B11.19, AS4024.1.

Approvals

CE Marked for all applicable directives, cULus, TUV, and CCC.

Interlock Switch

Note

This safety device can be used with Guardlink, a new safety linking technology from Allen Bradley Guardmaster.
Guardlink simplifies and reduces the connection time of the safety system, whilst providing real-time diagnostic information over Ethernet IP. This makes it simple to identify the location of the device that has tripped the safety system, thus reducing downtime, and improving the machines overall efficiency. For more details, please go to the Guardlink brochure.