GE Industrial Solutions Power Break II Bell Alarm with Lockout User Manual

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GEH–6278D

Power Break® II Circuit Breaker
Accessories

Bell Alarm with Lockout

Introduction

The Bell Alarm with Lockout module, shown in Figure 1, can
be installed in 800–4000 ampere frame Power Break® II
circuit breakers. Its function is to prevent reclosing of the
breaker after a trip until the Bell Alarm with Lockout is reset.
It can only be reset by pressing the reset button on the top of the
module. This module also provides a switch to remotely indi cate
that the circuit breaker has tripped.

Operation

The Bell Alarm with Lockout prevents reclosing of the breaker
after a trip until the reset button on the front of the module is
pressed. 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 Plu s 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 with Lockout for a protection trip.

In addition, the Bell Alarm with Lockout provides normally
open (NO) and normally closed (NC) alarm outputs available
at the terminal block on the right side of the breaker, as
illustrated in Figure 2. These outputs are returned to their
normal state when the Bell Alarm with Lockout reset button is
firmly pressed.

Figure 1. Bell Alarm with Lockout.

In addition to activation by protection trips, the Bell Alarm with
Lockout accessory 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 with Lockout 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 with Lockout
for protection trips only.

The catalog numbers for the Bell Alarm with Lockout are listed
in Table 1.

Catalog No. Contact Rating

6 A at 240 Vac

SPBAL240

SPBAL600

❿

The 600 V version is not UL listed.

Table 1. Bell Alarm with Lockout catalog numbers.

0.25 A at 250 Vdc

0.50 A at 125 Vdc

❿

0.25 A at 250 Vdc

0.50 A at 125 Vdc

6 A at 600 Vac

Figure 2. Bell Alarm with Lockout connections on the right terminal

block, with contacts shown in the reset state.

Installation

WARNING: Before installing any accessories, turn the breaker
off, disconnect it from all voltage sources, and discharge the
charging springs.

AVERTISSEMENT: Avant d’installer tout accessoire, mettre
le disjoncteur en position OFF, le déconnecter de toute tension
d’alimentation, et décharger les ressorts d’armement.

The Bell Alarm with Lockout i s installed in the accessory
compartment on the front of the circuit breaker in the position
shown in Figure 3.

Figure 3. Accessory compartment on front of circuit breaker, with Bell

Alarm with Lockout slot indicated.

Use the following procedure to install the Bell Alarm with
Lockout into the accessory compartment:

1. Open the hinged door over the accessory compartment and
Trip Unit.

2. To remove an existing accessory module, loosen the
accessory locking screw and pull the module out with the
Rating Plug Removal Tool (catalog number TRTOOL).

3. Insert the Bell Alarm with Lockout module into the proper
slot, as illustrated in Figure 4. The Bell Alarm with
Lockout module is keyed for the correct slot in the
accessory compartment. If the module cannot be fully
seated in the compartment, check that the compartment
position is correct.

4. Tighten the locking screw on the front of the accessory
until it is snug (9 in-lb).

Figure 4. Inserting the Bell Alarm with Lockout into the accessory

compartment.

6. Connect the control wiring for the Bell Alarm with Lockout
at the right terminal block, as illustrated in Figure 2.

7. Test the Bell Alarm with Lockout to ensure proper

operation, according to the procedures below.

8. Reconnect power to the circuit breaker and any other
accessories.

9. Close and lock or sea l the door over the accessory
compartment and Trip Unit to prevent unauthor ized
changes to Trip Unit settings and to keep contaminants
out of empty accessory slots.

10. If the Bell Alarm with Lockout is rated at 600 V, remove
the UL label from the breaker top cover.

Accessory Configuration

This section applies only if Shunt Trip or Undervoltage Release
accessories are installed in the breaker, along with a
MicroVersaTrip Plus or MicroVersaTrip PM Trip Unit. The
Bell Alarm with Lockout accessory can be con figured to activate
if a Shunt Trip or Undervoltage Release trip occurs. The
configuration can be changed by removing the Trip Unit from
the breaker, setting the DIP switches on the rear of the Trip
Unit, and reinstalling the Trip Unit. Figure 5 illustrates the
Trip Unit rear DIP switches. Table 2 lists the switch functions
and the factory settings for each.

CAUTION: Overtightening the locking screw may distort the
case of the accessory.

ATTENTION: Le serrage excessif de la vis de verrouillage
peut déformer le boîtier d’accessoire.

5. If the breaker is equipped with a MicroVersaTrip Plus or
MicroVersaTrip PM Trip Unit, the Bell Alarm with
Lockout accessory can be configured to activate after trips
due to installed Undervoltage Release or Shunt Trip
accessories with the procedure described in the Accessory
Configuration section.

Figure 5. Accessory switch on the rear of a MicroVersaTrip Plus™ or

MicroVersaTrip PM™ Trip Unit, showing the factory settings (solid

part indicates that switch is pushed in on that side).

Switch

Factory
Setting Function

1 Disabled

2 Disabled

3 Enabled

4 Disabled

5 Disabled

6 Enabled

Shunt trip activates Bell Alarm–Alarm

Only

UVR trip activates Bell Alarm–Alarm

Only

Protection trip activates Bell

Alarm–Alarm Only

Shunt trip activates Bell Alarm with

Lockout

UVR trip activates Bell Alarm with

Lockout

Protection trip activates Bell Alarm

with Lockout

Table 2. Accessory switch settings, including factory defaults.

Description of Switch Settings

Following are descriptions of the effects of each accessory switch
when it is enabled:

1. When a Shunt Trip accessory causes the breaker to trip,
the contacts of the Bell Alarm–Alarm Only also change
state. (The factory switch setting is disabled.)

2. When an Undervoltage Release accessory causes the
breaker to trip, the contacts of the Bell Alarm–Alarm Only
also change state. (The factory switch setting is disabled.)

3. When a protection trip (long-time, short-time,
instantaneous, ground-fault, or protective-relay) occurs,
the contacts of the Bell Alarm–Alarm Only also change
state. (The factory switch setting is enabled.)

4. When a Shunt Trip accessory causes the breaker to trip,

the contacts of the Bell Alarm with Lock out also change
state. (The factory switch setting is disabled.)

5. When an Undervoltage Release accessory causes the
breaker to trip, the contacts of the Bell Alarm with
Lockout also change state. (The factory switch setting is
disabled .)

6. When a protection trip (long-time, short-time,
instantaneous, ground-fault, or protective-relay) occurs,
the contacts of the Bell Alarm with Lockout also change
state. (The factory switch setting is enabled.)

4. Refer to Figure 5 and Table 2 to determine the switches
to be changed.

5. Push in the appropriate “Enable” or “Disable” side of the
switch.

6. Confirm all switch settings before reinstalling the Trip
Unit in the breaker.

7. Pull the Trip Unit locking lever to the right. While
holding the lever, carefully align the con nector on the rear
of the Trip Unit with the connector in the breaker. Press
down on the Trip Unit, while holding it near the battery
cover. When the Trip Unit is fully seated, slide the locking
lever back to the left.

8. Reinstall the breaker top cover and tighten the four #10­32 screws to 32 in-lbs.

9. Replace the trim plate and tighten the four #8-32 screws
to 20 in-lbs.

10. Verify that the switch settings are correct by inducing
breaker trips from the UVR and/or Shunt Trip (if
present) and checking the responses of the Bell
Alarm–Alarm Only and Bell Alarm with Lockout
accessories.

Test Procedure

Use the following procedure to test the Bell Alarm with Lockout
for proper operation.

1. Firmly press in the reset button on the front of the Bell
Alarm with Lockout until it latches.

2. With an ohmmeter, verify continuity between positions 10
and 1 2 a t the terminal block on the right side of the
breaker.

3. Verify that terminals 11 and 12 show an open circuit.

Procedure for Changing Switch Settings

Change the accessory switch settings with the following
procedure:

WARNING: Before beginning this procedure, turn the breaker
off, disconnect it from all voltage sources, and discharge the
closing springs.

AVERTISSEMENT: Avant de commencer cette procédure,
mettre le disjoncteur en position OFF, le déconnecter de toute
tension d’alimentation, et désarmer les ressorts de fermeture.

1. Loosen the four #8-32 screws on the breaker trim-plate
assembly and remove the trim plate.

2. Loosen the four #10-32 screws at the corner of the breaker
cover. Remove the cover from the breaker face.

3. Pull the Trip Unit locking lever to the right, then hold the
Trip Unit near the battery cover and lift it straight out of
the breaker.

Trouble-Shooting

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The f ollowing guide is provided for trouble-shooting and
isolating common problems. It does not cover every possible
situation. Contact the ED&C Customer Support Center at 800­843-3742 if any problem is not resolved by these procedures.

Symptom Possible Cause Corrective Action

1. The circuit breaker will
not turn on.

The Bell Alarm with Lockout is
not reset.

Push firmly on the reset button on the front of the Bell
Alarm with Lockout module until it latches.

2. The lockout function is not
activated on a trip, the
outputs do not change
state on a trip, or the
normally closed terminals
show no continuity.

The module is not fully seated in
the compartment.

The Bell Alarm with Lockout
configuration switches on the rear
of the MicroVersaTrip Plus or
MicroVersaTrip PM Trip Unit
are not properly set.

Push the Bell Alarm with Lockout module firmly into the
compartment and tighten the hold-down screw to 9 in-lbs.

Follow the procedure to remove the Trip Unit and set the
switches. Check that the switches have been set correctly.

These instructions do not cover all details or variations in equipment nor do they provide for every possible contingenc
that may be met in connection with installation, operation, or maintenance. Should further information be desired or
should particular problems arise that are not covered sufficiently for the purchaser’s purposes, the matter should be
referred to the GE Company.

GE Electrical Distribution & Control

General Electric Company
41 Woodford Ave., Plainville, CT 06062

GEH-6278D 0697 © 1997 General Electric Company