Its adjustable thermal trip range spans 38 A to 300 A, giving the specifying engineer flexibility to match the breaker to the actual load without swapping the frame. Breaking capacity is the headline here: 242 kA at 240 V AC, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V. The steep drop to 3.7 kA at 690 V tells you this is a 240–500 V class device; at 690 V the interrupting capability is much lower, so verify the available fault current at that voltage before specifying. The unit does not include undervoltage release or communication functions; it's a straightforward line-protection MCCB with no frills.
Panel Fit and Thermal Performance
Operating temperature range is -25 °C to 70 °C, with no derating needed across the full 25 A rating from 40 °C through 70 °C — all temperature points show 25 A continuous, so the breaker holds its rating in warm cabinets.