The Eaton Industries NZMB M is a power circuit-breaker with a continuous nominal current (Iu) of 160A and a nominal cut-off power (Icu) of 53kA at 400. It features an overload protection setting range of 1210 – 2000A and an un-delayed short circuit setting range of 1210 – 2000A. The main current circuit connection method is a screw connection and the breaker is three poles. It belongs to the NZM..-M series which is suitable for all applications in the IEC market in four compact sizes, with a modular function group allowing flexible mounting. It features thermomagnetic release for motor protection, meets the requirements of switching category AC-3 and complies with IEC/EN 60947-4-1 and IEC/EN 60947-2 standards. The circuit-breaker offers a tripping class of 10A.
Specifications
Overload release current setting (A) : 125 A to 160 A
Adjustment range undelayed short-circuit release (A) : 1280 A to 2240 A
With thermal protection : Yes
Phase failure sensitive : No
Switch off technique : Thermomagnetic
Rated operating voltage (V) : 440 V to 440 V
Rated permanent current Iu (A) : 160
Rated operation power at AC-3, 230 V (kW) : 45
Rated operation power at AC-3, 400 V (kW) : 90
Type of electrical connection of main circuit : Screw connection
Type of control element : Rocker lever
Device construction : Built-in device fixed built-in technique
With integrated auxiliary switch : No
With integrated under voltage release : No
Number of poles : 3
Rated short-circuit breaking capacity lcu at 400 V, AC (kA) : 18.5
Degree of protection (IP) : IP20
Height (mm) : 184
Width (mm) : 105
Depth (mm) : 149




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