MCCB for high-fault line protection
Its interrupting capacity reaches 220 kA at 240 V, 154 kA at 415 V, and 76 kA at 440 V — figures that place it squarely in the high-fault category for industrial main feeders and large sub-distribution panels. The 125 A rating holds flat from 40 °C through 50 °C ambient, then derates to 122 A at 55 °C and 114 A at 70 °C.
At 70 mm deep, 101.6 mm wide, and 130 mm tall, this 4-pole MCCB fits standard SENTRON mounting patterns. If you are packing multiple breakers in a compact panel, that heat must be factored into the cabinet ventilation or cooling specification.
Lifecycle and compliance posture
The TM210 release designates a thermal-magnetic trip unit with fixed settings — no interchangeable electronic trip module. This simplifies specification for line-protection applications where coordination studies are already locked, but limits field adjustability if load characteristics change later.