63 A MCCB with full-rated interrupting capacity across voltage bands
The Siemens SENTRON 3VA2063-5HL36-0AJ0 is a 3-pole molded case circuit breaker rated for 63 A continuous current, with no derating required from 40 °C through 70 °C ambient. Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V — meaning it clears high-fault currents across common industrial voltage levels without cascading upstream.
Line protection design means thermal-magnetic or electronic trip tuned for cable/feeder protection out of the box.
Power loss and environmental limits
Maximum power loss is 5.4 W, low enough for dense panel layouts without forced cooling.
