MCCB for high-fault panel builds
It carries a 242 kA interrupting capacity at 240 V, stepping down to 187 kA at 415/440 V, 121 kA at 500 V, and 6 kA at 690 V — numbers that govern its placement in high-fault panels where the available fault current at the service entrance exceeds 100 kA. An undervoltage release (UVR) is fitted as standard — the release module is order code 3VA9608-0BB11, and the basic switch assembly is 3VA2225-6JP32-0AA0.
Above that, derating is linear: 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C. In a sealed enclosure or high-ambient panel (e.g., adjacent to a transformer or drive), the 50 °C threshold is the practical limit before you lose capacity. The 105 mm width and 181 mm height fit standard SENTRON mounting footprints; depth is 86 mm including the handle and terminal covers. Maximum power dissipation is 50.5 W — plan for that heat load in the enclosure thermal calculation.
