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NZM7-40 Possible Replacement Circuit Breakers

Possible Replacement Type of Release Screw
or Terminal
Rated continuous current (Iu) Width comparison

Original Circuit Breaker: 
NZM7-40B

NZMB1-A40
259075
t/m T 40 New < Old
NZMB1-A50
259076
50 New < Old

Original Circuit Breaker: 
NZM7-40H, NZM7-40H-M8, NZM7-40H-M8

NZMH1-A40
284379
t/m T 40 New < Old
NZMH2-A40
259095
S New = Old
NZML2-A40
259104
NZMH1-A50
284410
T 50 New < Old
NZMH2-A50
259096
S New = Old
NZML2-A50
259105

Original Circuit Breaker: 
NZM7-40H-M

NZMH2-M40
281302
t/m S 40 New = Old
NZML2-M40
281313
NZMH2-M50
281303
50
NZML2-M50
281314

Original Circuit Breaker: 
NZM7-40H-M-M8

NZMH2-M40
281302
t/m S 40 New = Old
NZML2-M40
281313
NZMH2-M50
281303
50
NZML2-M50
281314

Original Circuit Breaker: 
NZM7-40N

NZMB1-A40
259075
t/m T 40 New < Old
NZMN1-A40
259081
NZMB1-A50
259076
50
NZMN1-A50
259082

Original Circuit Breaker: 
NZM7-40N-CNA, NZM7-40N-CNA-M8

NZMB1-A40-NA
272253
t/m T 40 New < Old
NZMN1-A40-NA
274237
NZMB2-A40-NA
269209
S New =Old
NZMN2-A40-NA
269220
NZMB1-A50-NA
272254
T 50 New < Old
NZMN1-A50-NA
274239
NZMB2-A50-NA
269210
S New =Old
NZMN2-A50-NA
269221

Original Circuit Breaker: 
NZM7-40N-M

NZMB1-M40
265710
t/m T 40 New <  Old
NZMN1-M40
265718
NZMB1-M50
265711
50
NZMN1-M50
265719

Original Circuit Breaker: 
NZM7-40H-M-M8

NZMH2-M40 
281302
 t/m S 40 New <  Old
NZML2-M40
281313
NZMH2-M50
281303
50
NZML2-M50 t/m
281314

Original Circuit Breaker: 
NZM7-40S-M-M8

NZMN1-M40
265718
t/m T 40 New <  Old
NZMH2-M40 t/m
281302
S New =Old
NZMN1-M50 t/m
265719
T 50 New <  Old
 NZMH2-M50 t/m
281303
S New =Old

Original Circuit Breaker: 
NZM7-40S-NA, NZM7-40S-NA-M8

 NZMH2-A40-NA
269231
t/m S 40 New =Old
NZMH2-A50-NA
269232
50
 

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