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.

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

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

The Cadet 3 440K-C21096 tongue interlock switch has 3 NC contacts, a flat type actuator made of stainless-steel, and M16 conduit entry. The operating temperature for this mechanism is -20°C - 80°C.

A safety interlock switch is a device which keeps guard doors and gates securely locked to prevent access to areas where dangerous machinery may be in operation, minimalising the risk of injury to personnel and damage to machinery. They can also be used to monitor the status of the machine guard, and to ensure that machinery cannot start up or run while the guard door is open. They are often utilised in industrial applications, such as safeguarding factory production lines. They can vary in lock type, maximum current and voltage, and housing material. Safety-rated interlock switches are specifically designed to meet high safety standards. Allen Bradley Guardmaster switches are built to global standards to provide exceptional quality and reliability.

This 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 system, thus reducing downtime, and improving the machines overall efficiency. For more details, please go to the Guardlink brochure.

Interlock Switch