The Eaton Industries NZMB S power circuit breaker features a nominal continuous current Iu of 160A and a nominal disconnecting capacity Icu at 400 53kA. It possesses an overload protection set range of 1210 – 2000A and an un-delayed short circuit set range of 1210 – 2000A. The main circuit connection method is screw connection, and it has three poles. The NZM..-S..CNA series circuit-breakers, offered in four compact sizes, are globally adaptable, with flexible modular function groups that include magnetic short-circuit release in connection with the overload relay, and short-circuit release lacking overload trip. The switches meet UL/CSA and IEC regulations. The rating plate denotes IEC switching performance values.
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) : 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) : 195
Width (mm) : 105
Depth (mm) : 149
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