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Eaton Moeller NZMB1
Circuit Breaker Index

Eaton Moeller NZMB1 Circuit Breakers

NZMB1 Breakers, Adjustable Thermal Trip

Thermo magnetic, Release 3-Pole
Protection of Systems and Cables
Adjustable thermal trip allows closer match to equipment requirements
Economical solution for applications to 125@480V/277V AC
Smallest footprint of any Moeller NZM Circuit Breaker
Breaker Conforms to UL/CSA and IEC Regulations

35 kA 240V AC
25 kA 480V/277V AC

Article Number Part Number Rated current = rated
uninterrupted current
In = Iu
Thermal Trip Magnetic Trip
281559 NZMB1-A20-NA 20 15 - 20 350
281560 NZMB1-A25-NA 25 20 - 25
281561 NZMB1-A32-NA 32 25 - 32
272253 NZMB1-A40-NA 40 32 - 40 320 - 400
272254 NZMB1-A50-NA 50 40 - 50 300 - 500
272255 NZMB1-A63-NA 63 50 - 63 380 - 630
272256 NZMB1-A80-NA 80 63 - 80 480 - 800
272258 NZMB1-A100-NA 100 80 - 100 600 - 1000
281562 NZMB1-A125-NA 125 100 - 125 750 - 1250

NZMB1 Breakers, Fixed Thermal trip

Thermo magnetic, Release 3-Pole
Protection of Systems and Cables
Fixed Thermal trip prevents altered settings
Economical solution for applications to 125@480V/277V AC
Smallest footprint of any Moeller NZM Circuit Breaker
Breakers Conform to UL/CSA and IEC Regulations

35 kA 240V AC
25 kA 480V/277V AC

Article Number Part Number Rated current = rated
uninterrupted current
In = Iu
Thermal Trip Magnetic Trip
281553 NZMB1-AF15-NA 15 15 350
281554 NZMB1-AF20-NA 20 20
281555 NZMB1-AF25-NA 25 25
281556 NZMB1-AF30-NA 30 30
272204 NZMB1-AF35-NA 35 35 320 - 400
272205 NZMB1-AF40-NA 40 40
272206 NZMB1-AF45-NA 45 45 300 - 500
272207 NZMB1-AF50-NA 50 50
272208 NZMB1-AF60-NA 60 60 380 - 630
272209 NZMB1-AF70-NA 70 70 480 - 800
272250 NZMB1-AF80-NA 80 80
272251 NZMB1-AF90-NA 90 90 600 - 1000
272252 NZMB1-AF100-NA 100 100
281557 NZMB1-AF110-NA 110 110 750 - 1250
281558 NZMB1-AF125-NA 125 125

NZMB1 Breakers, Magnetic Trip Only

Magnetic 3 pole short-circuit releases
Short-circuit protection
Terminals Standard, terminal screws as accessories

Article Number Part Number Rated current = rated
uninterrupted current
In = Iu
Short Circuit Releases
102906 NZMB1-S1.2-CNA 1.2 8.14
102907 NZMB1-S2-CNA 2 12.8 - 22.4
102908 NZMB1-S3-CNA 3 19.2 - 33.6
102909 NZMB1-S5-CNA 5 32 - 56
103020 NZMB1-S8-CNA 8 48 – 84
103021 NZMB1-S12-CNA 12 80 – 140
103022 NZMB1-S18-CNA 18 128 – 224
103023 NZMB1-S26-CNA 26 200 – 350
103024 NZMB1-S33-CNA 33 256 – 448
281263 NZMB1-S40-CNA 40 320 – 560
281264 NZMB1-S50-CNA 50 400 – 700
281265 NZMB1-S63-CNA 63 504 – 882
281266 NZMB1-S80-CNA 80 640 – 1120
281267 NZMB1-S100-CNA 100 800 – 1250