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rough handling is
company and promptly notify the neares t General Electric Sales Office.
Exercis e reas onable care when unpacking the relay s o that none of the parts are
damaged nor the adjus tments dis turbed.
If the relays are not to be ins talled immediately, s tore them in their original
cartons in a place that is free from mois ture, dus t and metallic chips .
matter collects on the outs ide of the cas e it could find its way ins ide when the
cover is removed, caus ing trouble when operating the relay.
CASE
The cas e can either be s urface or s emi-flus h mounted on the panel,
ass ortment of hardware is provided.
res et mechanis m when one is required.
wire.
The
case
has
connections .
The electrical connections between the relay units and the cas e s tuds
are made through s pring-backed contact fingers mounted in s tationary molded inner
and outer blocks .
nes ted between the molded blocks .
s tuds for external connections ,
connections .
The relay mechanism is mounted in a s teel framework called the cradle.
complete unit with all leads terminated at the inner block.
firmly in the cas e by a latch at the top and the bottom, and a guide pin at the back
of the cas e.
The cas e and cradle are s o cons tructed that the relay cannot be
ins erted upside down in the cas e.
the res pective blocks of the cradle and cas e,
latch in place.
The cover, which is fas tened to the case by thumbs crews , holds the
connecting plugs in place.
To draw out the relay unit,
Shorting bars are provided in the cas e to s hort the current-trans former circuits .
Release the latches,
relay unit to its cas e follow the revers e order.
A s eparate testing plug can be ins erted in place of one of the connecting plugs
to tes t the relay in place on the panel, either from its own s ource of current and
voltage, or from another source.
and replaced by another relay that has already been tes ted in the laboratory.
LOCATION
Install the relay in a location that is
exces s ive vibration, and is well-lighted to facilitate ins pection and tes ting.
evident,
file a damage claim at once with the trans portation
The cover attaches to the cas e and carries the
s tuds
or
s crew
Two removable connecting plugs , which complete the circuits , are
The outer blocks,
and the inner blocks have terminals
Bes ides making the electrical connections between
firs t remove the cover,
and the relay unit can be eas ily drawn out.
Or, the relay unit can be drawn out of its case,
INSTALLATION
GJm-1768
Each cover s crew has provis ion for a s ealing
connections
at
both
the connecting plugs als o lock the
clean and dry,
6
If foreign
ends
for
the
attached to the case,
for internal
This cradle �s held
then draw out the plugs.
To restore the
free from dus t and
and an
external
have
It �s a
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