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Elevator Shunt Trip Wiring Guide

1. A shunt trip device is required in the elevator machine room if the hoistway and/or machine room is sprinklered. 2. The shunt trip device must be monitored for loss of voltage which will activate an annunciator. 3. The main line disconnect and shunt trip device can be a single unit that functions as both a main line disconnect and shunt trip breaker.

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PT INDORAD MEGA BINTANG
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954 views1 page

Elevator Shunt Trip Wiring Guide

1. A shunt trip device is required in the elevator machine room if the hoistway and/or machine room is sprinklered. 2. The shunt trip device must be monitored for loss of voltage which will activate an annunciator. 3. The main line disconnect and shunt trip device can be a single unit that functions as both a main line disconnect and shunt trip breaker.

Uploaded by

PT INDORAD MEGA BINTANG
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Shunt Trip Device Wiring OREGON BUILDING CODES DIVISION

ELEVATOR SAFETY PROGRAM


Diagram Oregon Elevator Specialty Code
ASME A17.1b (1998), Rule 102.2(c)(3)
OESC (NEC 1999) Articles 620-51 & 620-91
References: NFPA 13 & NFPA 72 1999
To Feeder
1. A shunt trip device is only required if the
L1
L2
L3
hoistway and/or machine room is sprinklered.
2. The location of the shunt trip device is required
to be in the elevator machine room.
Shunt Trip
3. A NEMA-R enclosure is not required.
Device
Shunt trip control voltage, must be monitored
for loss of voltage. Loss of voltage is required to heat sensor(s)
to activate an annunciator on the control unit. or flow control
The building fire alarm control unit may be sensor.
utilized for this purpose. (ref. NFPA 72 3-9.4).

NOTE: The shunt trip and the main line


disconnect may be a single unit that functions as
a main line disconnect and shunt trip breaker.
Main Line
Disconnect Auxiliary Contact for Battery Lowering device
required by Art. 620-91(c). Purpose of this
If the elevator fire service Phase I or II is activated,
contact is to distinguish between an actual power circuitry is to be provided to disconnect battery
failure and the opening of the diconnect for lowering power from operating the car in the down
maintenance. direction if power is lost due to the activation of the
Must be provided with overcurrent protection. shunt trip device.
Must be lockable in the open position.
Must be externally operable.
Phase Phase
I II to elevator
Output control
Battery Lowering Device "down"direction
and door circuits

To Elevator Controller
C:\WINDOWS\TEMP\Shunttr4-0.vsd
Last Revised: Friday, August 30, 2002

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