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HG-1: Right Hand Interlock: For Use with Stationary Cam
Product Options
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 The HG-1, Electrical/Mechanical Contact Switch, is intended for use with Single Sliding Vertical Rise elevator hoistway doors. They are wired in series with all the other door switches in the hoistway and the electrical control circuit of the elevator so as to produce an overall electrical safety loop. In addition to this circuit closing system, there is a mechanical latch which locks the door in the closed position when the car has started to leave the floor. The HG-1 interlock has a single contact and is used with a stationary cam.
*These are made for either Right Hand or Left Hand mounting interlocks. The hand is determined by standing inside the elevator looking out. The side on which the lock is to be mounted (Left or Right) is the hand to be ordered.
Description
These locks consist of an adapter plate to be mounted to the door frame inside the hoistway. The adapter plate is screwed to the switch housing. This housing includes the contact making assembly, shafts and cam. At the top of the housing is a roller arm shaft with an adjustable roller arm. A conduit connection hole in the bottom of the housing is for wiring to the contact terminals. A cover is provided for the housing.
Operation
When the elevator stops at the landing, the Cam (Stationary or Retiring) on the elevator strikes the interlock roller arm, opening the lock. The hoistway door then slides vertically upward and the locking bar mounted on the door mechanically opens the contacts. When the door is closed the locking bar descends, closing the contacts.
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