Allen-Bradley 700S-PK620A1 Heavy Duty Safety Control Relay, 20 A, 6NO-2NC Contact Form, 120 VAC Coil

700S-P safety control relay is designed with special features for use in safety circuits. It is designed to reduce the possibility of a welded contact and with external monitoring, a welded contact can be detected if one ever occurs. It features mechanically linked contacts for all no/NC contact pairs which allow detection of a welded contact in any of the poles. Contacts cannot be added, removed, nor changed so that the safety function is never jeopardized. Similarly, there is no push-to-test function so that safety function is not jeopardized.