The Eaton Industries NZMB S power circuit breaker, with a rated uninterrupted current Iu of 63A and a rated breaking capacity Icu at 400 53kA, is a compact and flexible device suitable for the IEC market. It has an adjustable overload protection range of 380 – 630A, and an adjustable short circuit range of 380 – 630A. The main power circuit is connected via screw connection and it operates on 3 poles. This circuit breaker also comes with a magnetic short-circuit release combined with an overload relay and a short-circuit release without overload trip, meeting 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) : 63
Rated operation power at AC-3, 230 V (kW) : 18.5
Rated operation power at AC-3, 400 V (kW) : 30
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) : 18.5
Degree of protection (IP) : IP20
Height (mm) : 145
Width (mm) : 90
Depth (mm) : 88
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