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Allen-Bradley 440T Prosafe Trapped Key Switch with Electronic Timed-delay

The Allen-Bradley 440T Electronic Timed-delay Unit Trapped Key Interlock Switches are ideal for applications requiring an elapsed time to occur before access to a hazardous area. Using a combination of Guardmaster® SI and Guardmaster EMD safety relays to execute the timing sequence by turning a non-removable key. When the EMD times out an internal solenoid is energised allowing the removal of either one or two trapped keys ensuring a high level of safety to a hazardous area.

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Product Features

IP Rating

IP Rating

Enclosure rating of IP65.

Safety

Safety

Safety rating of Type 3, CAT 3 and PLd.

Security Shield

Security Shield

Designed with trapped key interlocking system ensuring hazardous machines are electrically isolated and accessible only when safe.