The Eaton Industries NZMB A circuit-breaker is a 4-pole device with a rated uninterrupted current (In = Iu) of 25A, a nominal voltage of 440V, and a switching capacity (Icu) at 400/415 V 50 Hz of 25 kA. Its overload protection setting range is 20 – 25A and the un-delayed short circuit range is set at 350A. Designed as a fixed device, it connects with a box terminal. Its primary function is system and cable protection following IEC standards. This circuit-breaker is meant to be installed permanently into an electrical system. It’s a quality, durable industrial device meant to protect circuits from overloads and short circuits.
Specifications
Rated permanent current Iu (A) : 25
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) : 20 A to 25 A
Adjustment range short-term delayed short-circuit release (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 350 A to 350 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 : 4
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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