Shunt Trip With Lockout; Bell Alarm - GE Power Break II Manual

Accessories

Shunt Trip With Lockout

The shunt trip with lockout is similar to the regular shunt trip.
When energized. the sh unt trip with lockout module sends a
signal to the trip u nit to open the breaker. I n addition. when
continuously energized with the breaker open. a plunger in
the module acts upon the mechanism. blocking manual and
electric closing by preventing mechanism spring discharge.
To close the breaker, de-energize the module for 250 ms. Be­
cause the b reaker mova ble contacts o re restra ined and can­
not momentarily touch the stationary contacts. the mecha­
nism remains "kiss-free". This feature is especially i m portant
in main-tie-main schemes or generator circuits.
Table 27. 1
Shunt Trip Module with Lockout
Catalog Voltage Maximum
N u m ber Rating Operating
Voltage
(50-60 Hz)
(Volts)
SPSTL012
12 Vdc
SPSTL024 24 Vac/dc
SPSTL048 48Vac/dc
SPSTL120 120Vac/125
Vdc
SPSTL208 208Vac 228
SPSTL240 240 Vac/250 264
Vdc
SPSTL480 480 Vac
528
SPSTL600 600Vac 660
Peak I n rush
Nominal Input
Cu rrent
Current
lAC Am ps) lAC RMS mA)
14 19 300
2 6 1 5 300
53 7 . 5
200
1 3 2 3 80
1.9 60
1. 5 45
3 6 5
3
65
Bell Alarm (Ala rm Only)
The bell alarm module is used to signal breaker "tripped" sta­
tus to other a ccessories (e.g. externa l alarm devices. indicat­
ing lig hts. relays, or logic circuits) for remote ind ication a n d
interlocking functions. T h e switch is config urable b y means
of rear-mounted DIP switches on the M icroVersaTrip Pl us™
and PM™ trip u nits. The bell a l a rm can be made to oper-
ate in response to an overcurrent ( including g round fau lt) or
p rotective relay trip and/or a shunt trip operation. and/or
operation of the undervoltage release module. It is not actu­
ated as a result of normal breaker "ON/OFF' operation. For
the Power+™ trip unit, the bell alarm operates only when an
overcurrent (including g round fault) trip occurs.
This module p rovides a visual. mechanical pop-out target
wh ich protrudes through the face of the circuit breaker door
when it operates. The bell alarm may be reset manually by
depressing the mechanica l target, or automatical ly by clos­
ing the b reaker.
The bell alarm is p rovided with one SPOT switch with control
power duty contacts as shown in Table 27.2.

Bell alarm

Table 27.2
Ratings
Bell Alarm Module
Catalog Number AC
SPBAA240 6 A @ 240 Vac
S P BAA600 CD
6A @ 600 Vac
CD 600 Vac module not UL listed
Ratings
DC
0.5 A @ 125 Vdc
0.25 A @ 250 Vdc
0.5 A @ 125 Vdc
0.25 A @ 250 Vdc
27