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NZMH4
Legacy Circuit Breakers



Current NZMH4 Product Line

Legacy NZMH4 Possible Replacements

Adjustable
Thermal Range
for motor overload
protection
Adjustable
Magnetic Trip
Range
Motor Rating Part Name Article No.
200V
HP
230V
HP
460V
HP
575V
HP
4-6 40-80 3 5 NZMH4-6-CNA 047925
6-10 60-120 2 3 5 NZMH4-10-CNA 050298
10-16 100-200 3 5 10 10 NZMH4-16-CNA 052671
16-25 160-320 5 15 20 NZMH4-25-CNA 055044
25-40 260-500 10 10 30 40 NZMH4-40-CNA 057417
40-63 400-800 20 20 40 60 NZMH4-63-CNA 059790
63-80 600-1000 25 30 60 75 NZMH4-80-CNA 062163

NZMH4 Legacy Circuit Breaker Ratings Overview

Instantaneous trip type circuit breakers
UL 489 / CSA 22.2 No. 5.1
Frame rating UL/CSA Interrupting ratings
kA RMS sym. at
240 VAC 480 VAC 600 VAC
NZMH4-...-OBI-CNA

2.1 - 18

UL recognized and CSA certified instantaneous trip circuit breakers no longer carry interrupting ratings as stand-alone devices. Per the intent of NEC Article 430-52, an instantaneous trip circuit breaker shall be used only if part of a listed combination motor controller. Short circuit ratings are, therefore, established
and valid only for the listed combination motor controller assembly and associated housing or enclosure. Consult Section 03 of this catalog for combination motor controller short circuit ratings as standard starters featuring NZM instantaneous trip circuit breakers. Consult Moeller Electric for combination motor controller high fault short circuit ratings as
motor control center unit starters featuring NZM instantaneous trip circuit breakers
NZMH4-...-OBI-Form CDN

Auxiliary Contacts for Type NZMH4-...

  Normally Open Normally Closed Part Name Article No.
Standard
2 2 +NHI22-NZM4/6-NA 082860
Early Make
1 1 +VHI-NZMH4-NA 082864
Handle Operated
Early Make
1 1 +AHI-NZMH4-NA 082865
Trip
Indicating
1 1 +RHI-NZMH4-NA 082866

Alternate NZMH4 Legacy Part Numbers

NZMH4
Article
Number
Part Name Description
 038433 NZMH4-10,50-OBI-CNA CIRCUIT BREAKER
5469 NZMH4-10,50-OBI-FORMCDN CIRCUIT BREAKER
50298 NZMH4-10-CNA MOTOR DISCONNECT SW.
40806 NZMH4-12,80-OBI-CNA CIRCUIT BREAKER
5470 NZMH4-12,80-OBI-FORMCDN CIRCUIT BREAKER
43179 NZMH4-15,120-OBI-CNA CIRCUIT BREAKER
5471 NZMH4-15,120-OBI-FORMCDN CIRCUIT BREAKER
52671 NZMH4-16-CNA MOTOR DISCONNECT SW.
45552 NZMH4-18,200-OBI-CNA CIRCUIT BREAKER
5472 NZMH4-18,200-OBI-FORMCDN CIRCUIT BREAKER
31314 NZMH4-2,1-12-OBI-CNA CIRCUIT BREAKER
5466 NZMH4-2,1-12-OBI-FORMCDN CIRCUIT BREAKER
55044 NZMH4-25-CNA MOTOR DISCONNECT SW.
33687 NZMH4-3,7-20-OBI-CNA CIRCUIT BREAKER
5467 NZMH4-3,7-20-OBI-FORMCDN CIRCUIT BREAKER
57417 NZMH4-40-CNA MOTOR DISCONNECT SW.
36060 NZMH4-6,6-32-OBI-CNA CIRCUIT BREAKER
5468 NZMH4-6,6-32-OBI-FORMCDN CIRCUIT BREAKER
59790 NZMH4-63-CNA MOTOR DISCONNECT SW.
47925 NZMH4-6-CNA MOTOR DISCONNECT SW.
62163 NZMH4-80-CNA MOTOR DISCONNECT SW.
 

 


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