What this MCCB does on the line
That makes it suitable for applications where emergency-off or undervoltage remote opening is required, such as ammonia compressor controls or cold-storage distribution.
In a warm enclosure — common in refrigeration machine rooms or near compressors — the 55 °C figure of 241 A is the realistic planning number. Breaking capacity drops sharply at 690 V to 4.5 kA, so this breaker is not intended for 690 V main service; it is optimised for 240–500 V distribution where it delivers 187–330 kA. Maximum power loss is 48 W — a figure to account for in enclosed panel heat budgets, especially when multiple breakers are ganged.
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep — a standard SENTRON 3VA2 footprint that fits existing panel cutouts and busbar systems for 250 A frames. The breaker accepts plug-in or fixed connections depending on the base unit (supplied basic switch 3VA2225-7HN32-0AA0). That covers cold storage and freezer applications without special derating, as long as the ambient stays above -25 °C during operation.