The Siemens SENTRON 3VA2063-5HL36-0DC0 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 that ceiling. That 63 A holds at every 5 °C step, so it's a straight pick for a 63 A feeder or motor branch without recalculating for panel heat. Breaking capacity is the headline: 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. That 187 kA at 240 V covers high-fault utility feeds; the 121 kA at 415 V handles most European industrial distribution. At 690 V the 3 kA rating limits it to lower-fault applications or upstream current-limiting coordination. It's designed for line protection (cable/feeder protection, not motor overload), with an undervoltage release (UVR) built in — the entry confirms the design of the auxiliary release is undervoltage release. Two HQ auxiliary switches are fitted as standard. No ground-fault monitoring, no communication function, no voltage trip indicator.
Dimensions and panel fit
Footprint: 105 mm wide, 181 mm tall, 86 mm deep. That 105 mm width is the standard 3-pole MCCB form factor for this SENTRON frame — it occupies three 35 mm DIN modules plus a sliver. The 86 mm depth means it clears a 100 mm deep enclosure with room for wiring gutters. Mounts on DIN rail or direct panel; the 181 mm height fits standard 200 mm rail lengths with a gap at each end.
Power loss and operating range
Maximum power loss is 7.9 W — negligible for panel thermal budgeting, but worth noting if you're packing multiple breakers in a sealed enclosure. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The 70 °C operating ceiling matches the full-load current rating, so no additional derating above 40 °C is required.