The Eaton Industries MCCB power switch is a 3-pole circuit-breaker designed for a nominal continuous current (Iu) of 320A and a nominal voltage of 690V. It features a nominal cut-off ability (Icu) of 36kA at 400, and an adjustable range of short circuit delay from 2560 – 35840A. Designed as a built-in fixed device, it connects via the main circuit using a screw connection. The device is standardized and approved according to the IEC, with a designated protective function for short-circuit protection.
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) : 0 A to 0 A
Adjustment range short-term delayed short-circuit release (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 2560 A to 35840 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 : 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 : 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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