The Eaton Industries MCCB power switch is designed for a nominal continuous current Iu of 320A and a nominal voltage of 690V. It boasts a nominal cutoff power Icu at 400 150kA. The overload protection setting range stands from 250 to 320A, while the instant short circuit setting range is from 1920 to 19200A. This device design follows a built-in device plug-in structure. Furthermore, the NZM series circuit-breakers, which come in four compact sizes, cover all application cases for the IEC market offering flexible installation due to 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) : 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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