Introduction
Mechanical Operations Counter:
A simple and easy to install mechanical device
that displays an accurate and cumulative record
of the number of closing operation of the
EntelliGuard® G Power Circuit Breaker in which it
is installed. Note: this device does not have a
reset function.
Catalog No. Description
GMCNR Mechanical Operations Counter
DEH-41416 Installation Instructions
EntelliGuard ® G Circuit Breaker
Accessories
Mechanical Operations Counter
Use the following procedure to install the
Operations Counter accessory into the circuit
breaker.
1. 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.
2. 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.
Figure 1. (A) Front Cover (B) Screw Removal (C) Handle
Rotation
WARNING: Before installing any accessories, turn the
breaker OFF, disconnect it from all voltage sources,
and discharge the closing spings.
AVERTISSEMENT: Avant d’installer tout accessoire,
mettre le disjoncteur en position OFF, le déconnecter
de toute tension d’alimentation , et décharger les
resorts d’armement
1
3. Position the mechanical operations counter (Fig
2.) over the two holes provided inside the
mechanism bracket, ensuring the indicator face is
aligned to show through the window in the cover.
C
B
A
Figure 4. Operations Counter Location
A) Spring charging link B) Operating arm C) Operations
Counter
6. To Reinstall the cover, rotate the charging
handle down and slide the front cover over the
handle to assemble the front cover to housing as
shown in Fig. 5.
Figure 2.
4. Mount in position using the screws provided
and apply torque 2.5-3Nm (1.84-2.21 ft-lbs).
Figure 3.
5. Ensure the operating arm (B) on the counter
rides over the spring charging link (A) of the
circuit breaker mechanism (Fig.4).
Figure 5.
7. Ensure the fascia is aligned properly with the
trip unit and the pad lock features of the breaker.
. Fasten the 6 mounting screws of fascia with
8
the housing using a pozidrive screwdriver. Apply
torque of 6 Nm (4.42 ft-lbs).
2