GE Industrial Solutions Power Break II Bell Alarm User Manual

Power break

Advertising
background image

Introduction

The Bell Alarm–Alarm Only module, shown in Figure 1, can be
installed in 800–4000 ampere frame Power Break® II circuit
breakers. This module provides a switch to remotely indicate
that the circuit breaker has tripped. It is reset either
automatically when the circuit breaker is reclosed or manually
when the reset button on the front of the Bell Alarm–Alarm
Only module is pressed.

Figure 1. Bell Alarm–Alarm Only.

In addition to activation by protection trips, the Bell
Alarm–Alarm Only accessory module can be set up to interact
with other Power Break II accessories, when used with a
MicroVersaTrip Plus™ or MicroVersaTrip PM™ Trip Unit.
DIP switches on the rear of the MicroVersaTrip Plus or
MicroVersaTrip PM Trip Unit can configure the Bell
Alarm–Alarm Only accessory to activate when a Shunt Trip or
Undervoltage Release trip occurs. The Accessory Configuration
section below describes how this can be done
The Power+™ Trip Unit activates the Bell Alarm–Alarm Only
for protection trips only.
The catalog numbers for the Bell Alarm–Alarm Only are listed
in Table 1.

Catalog No.

Contact Rating

SPBAA240

6 A at 240 Vac

0.25 A at 250 Vdc
0.50 A at 125 Vdc

SPBAA600 ➀

6 A at 600 Vac

0.25 A at 250 Vdc
0.50 A at 125 Vdc

600 V version is not UL listed.

Table 1. Bell Alarm–Alarm Only catalog numbers.

Operation

The Bell Alarm–Alarm Only provides normally open (NO) and
normally closed (NC) outputs available at the terminal block
on the right side of the breaker, as illustrated in Figure 2. The
outputs change state whenever a breaker trip occurs. This trip
can be caused by an overcurrent condition detected by the Trip
Unit. This trip can also be generated by the Shunt Trip, Shunt
Trip with Lockout, or Undervoltage Release, if installed with a
MicroVersaTrip Plus or MicroVersaTrip PM Trip Unit and if
the appropriate DIP switches have been set on the back of the
Trip Unit. Power+ Trip Units can only activate the Bell
Alarm–Alarm Only for a protection trip.
The Bell Alarm–Alarm Only accessory resets automatically,
returning the outputs to their normal configuration, when the
breaker is reclosed. The Bell Alarm–Alarm Only can also be
reset manually, before the breaker is reclosed, by pressing the
reset button on the front of the module.

Figure 2. Bell Alarm–Alarm Only connections on the right terminal

block. The contacts are shown in the reset state.

g

Power Break

®

II Circuit Breaker

Accessories

Bell Alarm–Alarm Only

GEH–6275D

Advertising