The Eaton Industries MCCB circuit-breaker NZM1 is a three-pole, plug-in unit with a switching capacity of 400/415 V 50 Hz, and an interrupting capacity (Icu) of 50 kA. Its rated current, or the rated uninterrupted current (In = Iu), is 50 A. The circuit-breaker also features a box terminal, and is certified to the International Electrotechnical Commission (IEC) standards. Offering both system and cable protection, it is designed for effective and reliable performance.
Specifications
Rated permanent current Iu (A) : 50
Rated voltage (V) : 690 V to 690 V
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz (kA) : 50
Overload release current setting (A) : 40 A to 50 A
Adjustment range short-term delayed short-circuit release (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 300 A to 500 A
Integrated earth fault protection : No
Type of electrical connection of main circuit : Frame clamp
Device construction : Built-in device plug-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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