The Eaton Industries NZM1 is a 4-pole, 25A circuit breaker with a switching capacity of 400/415 V 50 Hz (Icu): 50 kA, providing system and cable protection as per IEC standards. Suitable for installations requiring a fixed, uninterrupted rated current (In = Iu), the device also boasts a box terminal. The protection settings range from 20A to 25A for overload protection, and 350A for immediate short-circuit. This data ensures efficient operation in a range of applications where nominal voltages up to 690V are involved.
Specifications
Rated permanent current Iu (A) : 25
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) : 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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