This Eaton Industries MCCB power switch has a nominal continuous current Iu of 320A and a nominal voltage of 690V. Equipped with a nominal tripping capacity Icu at 400 150kA, it has an overload protection setting range of 250 – 320A and a non-delayed short circuit setting range of 1920 – 19200A. The device is designed as a plug-in built-in device. In addition, the NZM series circuit-breakers, which come in just four compact sizes, cover all application cases and are apt for the IEC market. To assure flexibility, these circuit-breakers employ the use of modular function groups for installation.
Specifications
Rated permanent current Iu (A) : 320
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) : 250 A to 320 A
Adjustment range short-term delayed short-circuit release (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 1920 A to 19200 A
Integrated earth fault protection : No
Type of electrical connection of main circuit : Screw connection
Device construction : Built-in device plug-in technique
Suitable for DIN rail (top hat rail) mounting : No
DIN rail (top hat rail) mounting optional : No
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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