The Eaton Industries NZMB A is a circuit-breaker functioning in compliance with IEC/EN60947-2 standards. Its nominal continuous current Iu is 125A, with a nominal voltage of 440V and a nominal breaking capacity Icu at 400 25kA. The circuit-breaker includes an adjustable overload protection setting range from 100 – 125A and an undelayed short circuit setting range from 6 – 10A. It comes with screw connections and screw fixing in a built-in device fixed installation form. It operates at Ui 690V with a degree of protection IP20 and is finger proof according to VDE 0106 T. 100 standards. The overload release setting Ir is adjustable between 0.8 – 1 × In, short-circuit release Ii is adjustable between 6 – 10 × In and a permanently set short-circuit release Ii as limitation. The device comprises accessory modules such as auxiliary contact, voltage release, remote operator, mounting accessories, and specified terminal types.
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) : 6 A to 10 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 : 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 : Yes
Degree of protection (IP) : IP20
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