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GEI-83910
It is a telephone-type relay unit with adjustable time--delay pickup.
T[,e unit
is preset at thf' factory for 16-18 milliseconds time--delay pickup.
f\
copper slug
on the armatli,-e end of the core delays the flux buildup, and consequently the relay
I,ickup.
DrolJOut time is approximately 88 milliseconds.
One normally-closed
contact and
OIIC
normally-open contact of the unit are brought out to separate studs
fOl"
external cir'cuH control.
The resistor', R?, is connected dcross the GOIX coil
when it is used on 220 or 250 VDC.
E.
SEAL-IN UNIT (SI)
This unit is located in the upper right-hand corner (rear view) of the relay.
It is of the familiar hinged-armature construction and operates to lift and close
its contacts, whenever sufficient trip current flows in its operating coil.
The above units and associated components are mounted on a steel cradle
assembly that can be easily removed from the relay case.
The crad 1 e is locked in the case by means of 1 atches at the top and bottom.
The electrical connections between the case block and cradle block are completed
through a removable connection plug.
A separate testing plug can be inserted in
p I ace of the connect i on plug to permit test i ng the re 1 ay in its case.
The cover
attaches to the case from the front and includes the target reset mechanism and an
interlock arm to prevent the cover from being replaced until the connection plug
has been inserted.
The case is suitable for either semi flush or surface mounting on panels up to
two inches (2") thick.
Hardware is available for any panel thickness up to two
inches, but panel thickness must be specified on the order to ensure that the
proper hardware will be provided.
Outline and panel-drilling dimensions are shown
in Figure 14.
RECEIVING, HANDLING, AND STORAGE
These re 1 ays, when not inc 1 uded as part of a contro 1 pane 1, wi 11 be shi pped in
cartons designed to protect them against damage.
Immediately upon receipt of a
relay, examine it for any damage sustained in transit.
If injury or damage
resulting from rough handling is evident, file a damage claim at once with the
transportation company and promptly notify the nearest General
Electric Sales
Office.
Reasonable care should be exercised in unpacking the relay in order that none
of the parts are injured nor the adjustments disturbed.
If the relays are not to be installed immediately, they should be stored in
their original cartons in a place that is free from moisture, dust, and metal 1 ic
chips.
Foreign matter collected on the outside of the case may find its way inside
when the cover is removed, and cause trouble in the operation of the relay.
Q
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