Breaking capacity is what determines if this breaker clears a fault without welding its contacts or rupturing the case: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V. At 415 V — common for industrial distribution in much of the world — 121 kA covers a high-fault panel downstream of a large transformer. The undervoltage release is built in, so a loss of control voltage trips the breaker; the auxiliary contact block includes two switches plus a separate trip alarm, which lets the PLC know the breaker opened on a fault, not a manual shutdown.
At 248 mm tall, 138 mm wide, and 110 mm deep, this breaker takes a standard SENTRON 3VA cutout. The IP40 front protection means it's fine inside a closed panel; no washdown rating, so keep it out of the splash zone. Communication function onboard means it can talk to a BMS or PLC via a compatible module — useful for remote trip indication and load monitoring without running separate wires for every auxiliary contact.