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T Y P E CO C I R C U I T OP E N I N G R E LAY
DE-ION CONTACTOR SWITCH (CS)
4 .
Adjust the core stop on the top as high
sible without allowing the insulating bushing at the
bottom of the plunger to touch the Micarta angle. The
contact will be separated from the Micarta angle by
to
Adj ust the contact gap spacing to
1 / 3 2 "
1 / 16 " .
slightly less than
of an inch.
1 / 1 6
contact springs so that a firm contact is made b ut
not so strong that the minimum pick-up value c an
not be obtained.
The spring tension should be about
grams.
15
Hold
the relay contacts
auxiliary relay coil connected across terminals to
simulate the circuit breaker trip coil, note that the
contactor switch picks up on le ss than
5. OPERATION INDICATOR (OI)
Pass sufficient current(a-c ) through the operation
mdicator to just operate it. This value of current
shou l d not be greater than
indicator targe t should drop freely. To change pickup ,
adjust the core screw.
1 6
as
pos
Bend down the
closed and with an
amperes .
4
amperes. The operation
3
6 . INDICATING INSTANTANEOUS TRIP UNIT (liT)
Tl1e making of the contacts and target indication
should occ ur at approximately the same mstant. Posl
tlon the stationary contact for a minimum of
w i pe . The bridging moving contact shoul d touch both
s tationary contacts s imul taneously.
Appl y s ufficient current to operate the liT. The
operation indicator target s houl d drop freely.
The nameplate data will furnish the actual c ur
rent range that may be obtained from the TIT unit.
R E N EWAL P AR T S
Repair work can be done most satisfactorily at
the factory.
However , interchangeable parts can be
furnished
to the customers who are equipped for
doing repair work.
When ordering p arts , always give ,
the complete nameplate data.
1/3 2 "
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