It carries a 25 A continuous rated current across the full ambient temperature range from 40 °C to 70 °C, so no derating is needed for typical panel environments.
Breaking capacity and fault clearing
This MCCB delivers 187 kA breaking capacity at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. The steep drop at 690 V reflects the physical limits of the arc-quenching chamber at higher system voltages; for 690 V applications the 3 kA rating still clears most downstream faults in a properly coordinated panel.
Trip unit and monitoring
The ETU850 electronic trip unit supports communication and other measurement functions, making it suitable for integration into energy monitoring or predictive maintenance schemes.
Physical fit
Dimensions are 86 mm deep, 140 mm wide, and 181 mm high.