The Eaton Industries NZMB A is a three-pole circuit breaker with a rated uninterrupted current (Iu) of 32A and a nominal voltage of 440V. It has a switching capacity of 25kA at 400V and 18kA at 600Y/347V, 60 Hz. The device offers an adjustable overload protection range of 25 – 32A and a non-delay short-circuit setting of 350A. Designed for built-in fixed installation, it features a screw connection. The device is UL/CSA and IEC compliant and primarily used for system and cable protection.
Specifications
Rated permanent current Iu (A) : 32
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) : 25 A to 32 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 : 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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