GE GSTG024D Installation Instructions

Introduction
Shunt Trip (Extended Range):
A device designed to switch the Power Circuit
Breaker OFF remotely. When energized a Shunt
Release instantaneously activates the circuit
breaker mechanism ensuring a rapid
disconnection of the main contacts.
Two Shunt trips can be mounted in each Power
Circuit Breaker. The devices are available as
factory mounted components or as field
mountable devices. It is an easy-to-fit, clip-on unit,
with simple plug-in connectors to the Secondary
Disconnect Block.
Table 1. Catalog Numbers and Ratings
Catalog DC
No. Voltage
GSTG024D 24V
GSST024D 24V
GSTG048 48V
GSTG072 70-72V
GSTG120 110-125V
GSST120 110-130V
GSTG208A
GSTG240 220V
GSST240 220-240V
GSTG250D 250V
* Momentary Rated shunt trip requires wiring one or more NO
(Normally Open) breaker aux contact(s) in series with the accessory to
avoid coil damage.
AC Rating*
Voltage
Continuous
Momentary
48V Continuous
Continuous
120-125V Continuous
110-130V Momentary
208V Continuous
240V Continuous
220-240V Momentary
Continuous
Use the following procedure to install the Shunt
Trip accessory into the circuit breaker.
1. Verify that the rating on the Shunt Trip
Mechanism identification plate matches the
voltage rating required for the application, as listed
in Table 1.
2. Turn the breaker off and discharge the closing
springs by depressing the OFF and ON buttons in
the sequence OFF-ON-OFF. Verify that the breaker
OFF-ON indicator shows OFF on a green
background and that the charge indicator shows
DISCHARGE on a white background. If installing in
a draw-out type breaker remove breaker from
adaptor (cassette) before continuing.
3. Loosen the 6 screws on front cover (fascia) using
a posidrive screw driver as shown in Fig 1.B
Rotate the charging handle down and slide the
front cover over the handle to remove the front
cover as shown in Fig. 1.C .
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