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Code Quiz: Hoistway Door Interlock Wiring

2017-11-01 22:12:32| Electrical Construction & Maintenance

When installing conductors for hoistway door interlock wiring, the conductors shall be ___________________. A) flame retardant and suitable for a temperature of not less than 200°C (392°F) and type SF or equivalent B) physically protected using an ap

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Interlock Switches Handle Rigorous Applications

2016-09-29 00:23:15| Chemical Processing

Omega K-SS Series tongue operated safety interlock switches fit to the leading edge of sliding, hinged or lift off machine guards.

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Smart Interlock Controllers include watchdog circuit.

2015-09-30 14:31:07| Industrial Newsroom - All News for Today

In addition to watchdog circuit that constantly monitors operation, 4700 Series features LED indicators for input-output connection status, and system busy or system idle confirmation. Suppression protection on all outputs prevents inductive load locking devices from damaging circuitry. Additional features include interlock violation alarm relay output, 4 DPDT relays, panic release, and custom programmable propped door, panic release, and door unlock timers.

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Interlock safeguard

2015-06-19 16:41:00| Electrical Construction & Maintenance

The Type FF reduced-size mechanical bolt interlock for smaller stature breakers helps ensure workers follow a predetermined sequence of operation read more

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