The Eaton Industries MCCB circuit breaker is designed for continuous nominal current (Iu) at 250A, with a nominal voltage of 440V and a nominal cut-off capacity (Icu) at 400 25kA. It features an overload protection adjustment range of 200 – 250A and an un-delayed short circuit adjustment range of 200 – 250A. The circuit breaker is designed as a built-in device in a fixed installation form. The NZM series offers four compact size options, catering to both IEC and UL markets. The modular functional groups ensure flexible installation opportunities.
Specifications
Rated permanent current Iu (A) : 250
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) : 200 A to 250 A
Adjustment range short-term delayed short-circuit release (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 200 A to 250 A
Integrated earth fault protection : No
Type of electrical connection of main circuit : Other
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 : Yes
Degree of protection (IP) : IP20
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