The Eaton Industries MCCB (Molded Case Circuit Breaker) NZM2 has a 3-pole configuration with a switching capacity of 150 kA at 400/415V 50Hz. It comes with a rated interrupted current (In = Iu) of 300A. The unit boasts an overload protection adjustment range of 240 – 300A and an instantaneous short circuit adjustment range of 2000 – 2500A. The device is built for installation as a fixed in-built device, utilizing a screw connection for secure fitting. It complies with IEC standards and serves a protective function for both systems and cables.
Specifications
Rated permanent current Iu (A) : 300
Rated voltage (V) : 690 V to 690 V
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz (kA) : 150
Overload release current setting (A) : 240 A to 300 A
Adjustment range short-term delayed short-circuit release (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 2000 A to 2500 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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