The Eaton Industries NZMB A is a circuit-breaker that is equipped with 3 poles. It boasts a switching capacity of 400/415 V 50 Hz (Icu) of 25 kA. The device operates with a rated current or rated uninterrupted current (In = Iu) of 63 A. Designated for fixed installations, this inbuilt device connects via a box terminal. The Eaton NZMB A also complies with the IEC standard. This circuit-breaker is primarily designed for system and cable protection. It offers an overload protection installation range from 50 – 63A and an instantaneous short circuit installation range from 380 – 630A.
Specifications
Rated permanent current Iu (A) : 63
Rated voltage (V) : 440 V to 440 V
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz (kA) : 25
Overload release current setting (A) : 50 A to 63 A
Adjustment range short-term delayed short-circuit release (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 380 A to 630 A
Integrated earth fault protection : No
Type of electrical connection of main circuit : Frame clamp
Device construction : Built-in device fixed built-in technique
Suitable for DIN rail (top hat rail) mounting : No
DIN rail (top hat rail) mounting optional : Yes
Number of auxiliary contacts as normally closed contact : 0
Number of auxiliary contacts as normally open contact : 0
Number of auxiliary contacts as change-over contact : 0
With switched-off indicator : No
With integrated under voltage release : No
Number of poles : 3
Position of connection for main current circuit : Front side
Type of control element : Rocker lever
Complete device with protection unit : Yes
Motor drive integrated : No
Motor drive optional : No
Degree of protection (IP) : IP20
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