Eaton ND Series, Installation Instructions Manual

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6
Instruction Leaflet IL29C109J
Effective November 2013
Installation Instructions for ND, HND, NDC, CND,
CHND, CNDC Circuit Breakers with Digitrip OPTIM
Trip Unit and Powernet, and/or Zone Interlock
EATON CORPORATION www.eaton.com
Pos. Terminal Wire Color
I
ICK Zone Interlock Zone
1 GF AL GF Alarm
X X
2 Zone OUT Short Output
3
Zone IN Short Input
X X
X X
4 COM Common Interlock
X X
X
X X
5
NEG Black* 24V Cont ro I
6 +24 Vdc Orange* 24 Power Supply* Power
16 Bell N.C. Red Alarm N.C.
I I I I
17 Com Black Common
I I I I
18 Red Switch N.O.
I I I I
19 Blue Aux Switch N.C.
20 Spare
I I I I I I I
Pos
15
Alarm
Aux.
Switch
BLU
The combination Bell Alarm Auxiliary Switch is only
available on the OPTIM 1050 units.
If
damaged, a terminal block cover can be purchased
through Eaton. The part number is 4214844699
NOTICE
1.
It is crucial to connect the +24 VDC power supply to the correct terminal. Improper connection can destroy the
electronic protection functions of the circuit breaker. The trip unit imposes a load of 45 ma.
2. The Optim 550 Ground Fault Trip and Ground Fault Alarm units have “NS and NS*” wires. The Non-Ground Fault
Optim 550 units have no wires.
3. Customer wiring connections are made on the removable male plug of the terminal block.
4. If the customer requires the interlock feature in their system, then the removal of the jumper between
positions 2 3 is required. Breaker is shipped as self interlocked from the factory.
Figure 2-6 OPTlM Wiring Terminations
BLU