Elevator shunt trip wiring diagram

NICET exam, NICET practice tests. If smoke detectors activate in elevator lobbies, elevator machine room, or hoistway, the fire alarm panel will send the elevator to the appropriate floor. Main branch-circuit fuses provide overcurrent protection in the event of short- circuits, power surges, damage to electrical wiring , etc…by interrupting faulty circuitry and removing it from the electrical system.

This is known as elevator recall.

Via Heat Detector or Flow Switch.

Can these be directly connected?

SS = smoke detector in elevator shaft.

Elevator System Disconnect Options. HM = heat detector in elevator machine room. HS = heat detector in elevator shaft. RA = relay for alternate recall. RW = relay for elevator warning.

K = relay for monitoring shunt trip breaker power. LPS SERIES SHUNT TRIP DISCONNECT SWITCH . Cooper Bussmann Selecting Power Module Relay Voltage - Duration: 2:42. Activate the fire alarm system contacts for shunt trip.

A fire alarm technician may be required for this step.

Edwards E-FSC conventional fire alarm system. To review: The idea behind elevator recall is. Step 1: Disconnect power from the circuit where the fusible shunt trip switch will be installed.

The location of the shunt trip device is required to be in the elevator machine room. Shunt Trip Device Wiring Diagram. Maximum Amperage: 10 2, 3 40 60.

Land the switch leg from the source contact on one terminal ( either) and the neutral wire ( L, X) to the other terminal. The shunt trip has coil clearing contacts that open when the voltage is applied so either momentary or maintained contacts can be .