The Eaton Industries NZMB S power circuit breaker is designed to handle a nominal continuous current of 200A and a nominal short-circuit current of 53kA at 400V. The overload protection adjustment range is between 1210 to 2000A, same as the undelayed short-circuit adjustment range. The main circuit connection is a screw connection, and the unit has 3 poles. The NZM..-S series circuit breakers are suitable for IEC market and allow for flexible mounting due to modular function groups. They include a magnetic short-circuit release connected to an overload relay and a short-circuit release without overload trip. They meet all 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 44328 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) : 200
Rated operation power at AC-3, 230 V (kW) : 55
Rated operation power at AC-3, 400 V (kW) : 110
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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