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DEH239 Installation Instructions R02
EntelliGuard™ Power Circuit Breaker
Accessories
Bell Alarm with Lockout for 3200–
Circuit Breakers
Introduction
The Bell Alarm with Lockout prevents closing of the
breaker after a protection trip until the accessory is reset.
It contains a set of switch contacts to remotely indicate
that the circuit breaker has opened due to a protection
trip.
The catalog number for the Bell Alarm with Lockout kit
for 3200–5000 ampere EntelliGuard breakers is
EGBLALMLFKIT. The kit includes the Bell Alarm
module, a universal mounting plate, and all necessary
hardware for installation.
Operation
The Bell Alarm with Lockout is activated and its status
circuit changes state whenever the EntelliGuard
Messenger™ trips the breaker due to an overcurrent,
ground fault, or protective relay function. A trip caused by
the manual OPEN button or the Shunt Trip does not
activate the Bell Alarm with Lockout. The EntelliGuard
Messenger continuously monitors the state of the status
circuit.
The Bell Alarm with Lockout can be reset by manually
depressing the target on the breaker escutcheon. This will
return the Bell Alarm with Lockout status contact to its
normal position and allow the breaker to be closed. The
connections of the Bell Alarm with Lockout to the
secondary disconnect are illustrated in Figure 1.
Note that the circuit breaker must be racked in to the
connected position, as indicated by the legend CONN on
the draw-out position indicator flag, for proper operation
of the lockout function of a Bell Alarm with Lockout.
Figure 1. Bell Alarm with Lockout connections to the secondary
disconnect.
Installation
WARNING: Before installing any accessories,
turn the breaker OFF, disconnect it from all
voltage sources, and discharge the closing
springs.
AVERTISSEMENT: Tourner le disjoncteur à la
position OFF, le débrancher de toute source de
tension et décharger les ressorts de fermeture
avant l’installation de tout accessoire.
The following installation procedure is described in
several sections. First, follow the procedure for preparing
the breaker for installation. Next, install the Bell Alarm
with Lockout, then return the breaker to operation.
Preparing for Installation
1. Open the breaker and remove it from the cubicle or
substructure. (See DEH-202 or DEH-204 for detailed
instructions.)
2. Insert the racking handle (catalog number
568B731G1 or G2) and move the racking mechanism
to the DISC position, as shown on the draw-out position indicator.
3. Remove the trim ring from the around the breaker
escutcheon by disengaging the ends of the springloaded rods from the escutcheon brackets.
4. Remove the six screws securing the escutcheon to the
breaker. Pull the manual charging handle out part
way, then slide off the escutcheon.
Installing the Bell Alarm with Lockout
5. Screw the supplied standoff into the front plate of
the breaker, as shown in Figure 2.
6. Place the Bell Alarm mounting plate over the
standoff and secure with a washer and nut. Insert the
long bolt, with two washers, through the pivot on the
mounting plate and screw it into the tapped hole in
the front plate of the breaker, as illustrated in Figure
2. Ensure that the engagement pin on the side of the
mounting plate, also shown in the top view in Figure
3, fits into the slot in the breaker mechanism and
that the lockout tab is underneath the handle tab.
7. Line up the Bell Alarm module on the mounting
plate, as shown in Figure 2, so that the solenoid
plunger and locating pin fit in the appropriate holes.
The label on the end of the module appears as in
Figure 4, with the legend ↑ LF LO horizontal. Attach
the module with the two screws provided.
8. Run the wires from the Bell Alarm module to the
secondary disconnect, as illustrated in Figure 5.
Attach the wires to the breaker frame with wire ties,
as indicated. Table 1 lists the wire colors and
terminal numbers. Figure 6 shows the secondary
disconnect terminal numbering scheme, as seen
from the front of the breaker, with the Bell Alarm
terminals in bold.
Returning the Breaker to Service
9. Check that the breaker racking mechanism is still in
the DISC position. Pull the manual charging handle
out part way, then slide the handle through the slot
in the escutcheon and move the escutcheon into
place. Insert the six mounting screws and tighten to
14–20 in-lb.
10. Replace the trim ring around the escutcheon, with
the narrow side at the bottom. Insert the ends of the
spring loaded rods into the holes in the escutcheon
brackets.
11. Insert the racking handle and return the racking
mechanism to the DISC position, as shown by the
draw-out position indicator.
12. Reinstall the breaker into its cubicle or substructure.
Figure 2. Installation of the Bell Alarm with Lockout.
Figure 3. Top view of the Bell Alarm mounting plate, showing the pin
to engage the breaker mechanism.
Figure 4. Orientation of the label on the Bell Alarm with Lockout
module.