The Siemens SENTRON 3VA2063-5HN36-0AH0 is a 3-pole molded case circuit breaker rated for 63 A continuous current across the full ambient range from 40 °C to 70 °C, with no derating needed up to that ceiling. At 415 V and 440 V it still breaks 121 kA; at 500 V it holds 75.6 kA, and at 690 V the rating drops to 3 kA — so this is a line-protection device sized for low-voltage main or feeder duty, not for 690 V motor circuits.
Auxiliary switching and trip indication
The basic switch inside is order code 3VA20635HN360AA0. Insulation voltage rated at 800 V.
