The 4-pole construction with adjustable neutral protection (OFF, 20 % to 100 % of phase rating) suits 3-phase + N systems where you need selective coordination on the neutral conductor. The ETU550 electronic trip unit provides communication capability, so this breaker can report status and trip events to a higher-level control system — useful for a BMS or SCADA-connected distribution board.
Panel integration — dimensions and mounting
At 280 mm wide by 320 mm high by 120 mm deep, this MCCB fits a standard switchboard cubicle. The 120 mm depth is the front-to-back dimension behind the panel door; verify gland-plate clearance for the cable entry zone. Maximum power dissipation is 144 W at rated load.
Lifecycle and sourcing — active, current production
The interrupting curve at 690 V is 73.5 kA — confirm that value against your available fault current.
