The Siemens SENTRON 3VA2163-6HN36-0JA0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to the enclosure's thermal limit. Its interrupting capacity hits 242 kA at 240 V AC, 187 kA at 415/440 V, and still holds 121 kA at 500 V, which puts it in the high-fault-current class for industrial main feeders or large sub-distribution boards where upstream transformer capacity is substantial. This variant ships with a shunt trip release (STL) for remote tripping via a control signal — useful in emergency-stop circuits or automated shutdown sequences where you need to kill the breaker without a manual handle pull. No undervoltage release, no ground-fault module, no auxiliary switch fitted on this order code; those are add-on accessories if your scheme requires them.
Panel fit & integration
Footprint is 105 mm wide by 181 mm tall by 86 mm deep. Mounts on DIN rail or direct panel.
Breaking capacity — what it means on your line
The 242 kA at 240 V is the short-circuit current the breaker can safely interrupt without welding contacts or rupturing the case. For a 480 V delta service (common in North American industrial panels), the relevant figure is 187 kA at 415 V — still well above what most secondary substations can deliver. At 690 V it drops to 3.7 kA, so if you're on a 600 V class system, verify your available fault current against that curve.