The Eaton Industries NZMB A is a 3-pole circuit-breaker with a rated uninterrupted current (In=Iu) of 125A. It features a switching capacity SCCR of 25 kA at 480Y/277 V 60 Hz, 18 kA at 600Y/347 V 60 Hz, and 25 kA at 480 V 60 Hz. The device is designed for system and cable protection. Additionally, it offers an overload protection setting range of 100 – 125A, and an instantaneous short circuit setting range of 750 – 1250A. The Eaton NZMB A circuit breaker has a fixed installation type with a screw connection. It follows UL/CSA, IEC standards, ensuring optimal performance and reliability.
Specifications
Rated permanent current Iu (A) : 125
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) : 100 A to 125 A
Adjustment range short-term delayed short-circuit release (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 750 A to 1250 A
Integrated earth fault protection : No
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 : 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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