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GEH3434 INSTALLATION INSTRUCTIONS
For Type TED Circuit Breaker
Three Coil Shunt Trip Device
NOTE: U/L listing is voided when the circuit
breakeris modified to add an accessory. The U/L
labelmust be destroyed
CAUTION: When installing accessories. the breaker
must be completely deenergized and dis�onnected
from the electrical circuit.This is mandatory
because breaker must be "ON" during certain
stages of installation and testing
VOLTAGE RATING 208-600 VAC
INSTALLATION
Removing Breaker Cover
Open breaker contacts by moving handle to the
breaker "OFF" position. Removebreakercover by
removing mounting screws as shown in figure 2.
Remove and save insulating tubes and plastic
handle, showninfigure3. Tar mustbe removedto
gain access toscrewshownbelow.
FOUR
—
Figure 1.
COVER
SCREWS
GENERAL DESCRIPTION AND
APPLICATION :
The three-coilshunt tip is designed for the molded
case circuit breaker in applications with current
limiting fuses. The accessory prevents single-
phasing on a three phase system when a single
fuse blows. Each coil of the shunt trip is wired
across a fuse so that the voltage across an open
fuse will trip the breaker. When a coil is energized,
the solenoid core releases the spring biased latch,
allowing the slide to rotate the breaker trip bar to
trip breaker. The fuse must be re-placed, and the
breaker reset, before it can be reclosed. If the
breaker is closed on an open fuse, the shunt trip
will reopen immediately.
—
Figure 2
HANDLE
INSULATING
TUBES
—
Figure 3
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