The Eaton Industries NZMB S power circuit breaker is designed with a nominal continuous current Iu of 125A and a nominal breaking capacity Icu of 53kA at 400. It features an adjustable overload protection range of 960 – 1600A and an immediate short circuit setting range of 960 – 1600A. The main circuit connection method is a screw connection, with a three-pole design. The NZM..-S series circuit-breakers are compact and versatile, suitable for the IEC market. They are equipped with a magnetic short-circuit release in association with an overload relay, along with a short-circuit release without an overload trip. These circuit-breakers meet all the requirements of the AC-3 switching category.
Specifications
Overload release current setting (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 8 A to 14 A
With thermal protection : No
Phase failure sensitive : No
Switch off technique : Magnetic
Rated operating voltage (V) : 440 V to 440 V
Rated permanent current Iu (A) : 125
Rated operation power at AC-3, 230 V (kW) : 37
Rated operation power at AC-3, 400 V (kW) : 45
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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