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HG-2 Door Interlock
For Use With Retiring Cam
The HG-2, electrical/mechanical contact switch
is intended for use with single sliding vertical
rise elevator hoistway doors. It is 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-2 interlock has two contacts,
one for the door and one for the retiring cam.
The retiring cam is a safety feature to insure that
the retiring cam has been picked prior to the car
moving.
The HG-2 is made for right-hand or left-hand
mounting. 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.
MODELS AVAILABLE
STANDARD -HEAVY DUTY
778-502
HG-2: Left Hand
778-503
HG-2: Right Hand
WATER/DUST RESISTANT - NEMA 4/12
778-602
HG-2: Left Hand
778-603
HG-2: Right Hand
HAZARDOUS LOCATION
778-602-HS
HG-2: Left Hand
778-603-HS
HG-2: Right Hand
(Class 1, Division 2)
ACCESSORIES
778-100
Door Locking Bar
3/16" Thick x 2" x 14"
769-001
Tamper Proof
Attachments
77784-C
EB-Surface Mounting
Emergency Box with
Glass Cove
77784-K
KEB-Surface Mounting
Emergency Box with
Lockable Metal Cover
790-501
ARC Retiring Cam
Specify Voltage
Ordering Information
235
Item: 790-501
ARC Retiring Cam
Specify Voltage
Door In Closed Position
Locking Bar Enters from top of
interlock.
Elevator Sill
Door In Opened Position
. .
. .
Door Slides Up To
Open
. .
. .
General Layout
HG Series Accessories
HG-2
RH
Item: 778-100
Locking Bar 3/16" Thick x 2" Wide x
14" Long
Item: 77784-K
KEB Emergency
Release Box w/Keys
and Chain Release
Item: 77784-C
EB Emergency
Release Box w/Keys
and Chain Release
Includes:
Cast Plug,
3 Rod
Guides &
48"
Long Bar
Other Sizes are Available, Just ask.