381-BT GuardSwitch Series
Safety Switch
Description
The 381-BT Series DPST safety interlock switch is designed for use with safety monitored relays or monitored circuits. To achieve the optimum Series 300 defeat resistant feature of the 381-BT, both the switch circuit (Circuit 1) and the tamper circuit (Circuit 2) must be connected.
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Catalog Numbers
Catalog Number
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Description
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Specifications
Approvals
Agency ApprovalscULus Recognized (E122942)
CSA Certified (LR89176)
NEMA Ratings: 1, 2, 5
Protection Class: IP64
Enclosure: Coated Aluminum
Temperature Range: -40F to 180F (-40C to 80C)
Environmental: Hermetically sealed contact switch encapsulated in polyurethane
Response time (individual circuits): 1 msec
Life cycles: 100,000 under full load; Up to 200,000,000 under dry circuit
Conduit Connection: 1/2 " Threaded NPT
Documentation
Installation Instructions