GE Industrial Solutions EntelliGuard G NETWORK INTERLOCK DEVICE - Manual

Introduction
NETWORK INTERLOCK DEVICE (NI)
The Network Interlock Device locks the breaker In
OFF position electrically and mechanically.
When this device receives a pulse all local
breaker functionality is disabled except the
tripping of the device on any over current fault.
On the receipt of a 2nd pulse normal operation is
re-instated. The presence of mains power does
not affect the locking and/or re-instatement of
this device. Each device has a local RESET button
that only can be accessed after breaker cover
removal.
Figure 1
Figure 2
Use the following procedure to install the
Network Interlock 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 pozidrive screw driver as shown in Fig
3.B
3. Rotate the charging handle down and slide the
front cover over the handle to remove the
front cover as shown in Fig. 3.C
Figure 3
EntelliGuard ® G Circuit Breaker
Accessories
NETWORK INTERLOCK DEVICE (NI)
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
DEH-41461 Installation Instructions
NI mounting location
1