The Eaton Industries NZMN S is a power circuit breaker with a nominal continuous current Iu of 50A and a nominal breaking capacity Icu at 400 105kA. It features an adjustable range for overload protection from 300 to 500A and an instantaneous short-circuit range from 300 to 500A. The main circuit connection method is a screw connection and it has three poles. As part of the NZM..-S series, this compact circuit breaker is suitable for the IEC market with its flexible mounting options via modular function groups. It incorporates a magnetic short-circuit release in conjunction with an overload relay and a short-circuit release without an overload trip. This circuit breaker meets all the requirements of the switching category AC-3.
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) : 690 V to 690 V
Rated permanent current Iu (A) : 50
Rated operation power at AC-3, 230 V (kW) : 15
Rated operation power at AC-3, 400 V (kW) : 22
Type of electrical connection of main circuit : Other
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) : 35
Degree of protection (IP) : IP20
Height (mm) : 145
Width (mm) : 90
Depth (mm) : 88
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