The Eaton Industries MCCB power switch is designed for consistent usage at a nominal current of 320A and a nominal voltage of 690V. It features a nominal breaking capacity of 36kA at 400V and an adjustable overload protection range of 250 – 320A, as well as a non-delay short-circuit setting range of 1920 – 19200A. The device comes in a plug-in construction form for easy installation. Additionally, the NZM series circuit-breakers cater to all application cases using only four compact sizes and are compatible with the IEC market, offering flexible installation options through the use of modular function groups.
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) : 36
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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