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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.

17

Com

Black

Common

18

Red

Switch N.O.

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

Summary of Contents for ND Series

Page 1: ...t IL29C109J Installation Instructions for ND HND NDC CND CHND CNDC Circuit Breakers with Digitrip OPTIM Trip Unit and Powernet and or Zone Interlock Contents Description Page 1 0 Introduction 2 2 0 In...

Page 2: ...for AC applications only and can be reverse fed They are listed in accordance with Underwriters Laboratories Inc Standard UL 489 and satisfy the requirements of International Electrotechnical Commiss...

Page 3: ...ment configuration the cir cuit breaker can be mounted using different styles of hardware The following steps describe how to mount the circuit breaker using standard hardware When special hardware is...

Page 4: ...t Breakers with Digitrip OPTIM Trip Unit and Powernet and or Zone Interlock EATON CORPORATION www eaton com Figure 2 2 Conductor Extensionsand Terminal Installation for 100 Rating 0 31 8 0 31 8 25 Tap...

Page 5: ...le and the PUSH TO TRIP but ton in the trip unit The circuit breaker handle has three positions two of which are shown on the cover with raised letteringto indicate ON and OFF On the handle ON OFF and...

Page 6: ...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 t...

Page 7: ...roblem Red On White Trip Color Green Off I On Figure 3 1 CircuitBreaker Switch circuit breaker to ON and OFF several times to be sure that the mechanism linkages operate freely and do not bind If mech...

Page 8: ...es that certain minimum instructions GROUND FAULT TEST RECORD FORM round Fault Test Records should be Retained by Those in Charge of the Building s lectrical Installation in order to be available to t...

Page 9: ...rough the neutral sensor as shown in Figure 4 3 The breaker should not trip and the alarm indicator if supplied should not operate Repeat the test on the other two phases Source L Low Load Current Lim...

Page 10: ...eaflet 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...

Page 11: ...eaflet 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...

Page 12: ...further information is required you should consult an authorized Eaton sales representa tive The sale of the product shown in this literature is subject to the terms and conditions outlined in appropr...

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