The Eaton Industries MCCB Circuit-breaker NZM3 is a three-pole device with a rated uninterrupted current and nominal continuous current of 630A. Rated voltage stands at 690V. It boasts an impressive switching capacity at 400/415V 50Hz with a nominal cut-off power of 50kA. The device comes with an overload protection adjustment range of 315 – 630A and an undelayed short circuit adjustment range of 1260 – 5040A. Designed with a fixed built-in device shape, it connects via screws and meets the IEC standard. The circuit breaker is designed to provide both system and cable protection.
Specifications
Rated permanent current Iu (A) : 630
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) : 315 A to 630 A
Adjustment range short-term delayed short-circuit release (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 1260 A to 5040 A
Integrated earth fault protection : Yes
Type of electrical connection of main circuit : Screw connection
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 : No
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 : Yes
Degree of protection (IP) : IP20
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