Line Protection MCCB with Undervoltage Release
The Siemens SENTRON 3VA2063-5HL32-0CH0 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. The interrupting ratings are substantial: 187 kA at 240 V AC, 121 kA at 415/440 V, 75.6 kA at 500 V, and 3 kA at 690 V.
Built-In Undervoltage Protection and Auxiliary Switching
The trip indicator is present, so a visual flag confirms the breaker opened on a fault versus being manually switched off. No communication function or ground-fault monitoring is included on this order code — it is a pure line-protection device with undervoltage release.
The 86 mm depth means it clears most shallow enclosures, but verify the door clearance for the rotary handle if used in a dead-front switchboard. Power loss is rated at 7.9 W maximum, which is modest for a 63 A frame; thermal management inside a sealed panel is straightforward.