Electrical · E-G9PVE

Elevator Disconnect Shunt Trip Schematic

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The schematic details an elevator disconnect housed in a NEMA 1 enclosure featuring a shunt trip operator, elevator J fuses, a Bussman power module, and a 100VA control power transformer with options to omit on 208V systems. Field wiring connections link the unit to the elevator controller, fire alarm control module via half-inch conduit, and emergency battery lowering devices for hydraulic elevators. Auxiliary contacts change state when the disconnect is operated, monitored by voltage relay connections and a key test switch. General notes direct coordination with elevator shop drawings and contractor requirements for sizing, horsepower confirmation, and code clearances.

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