The Siemens SENTRON 3VA2063-5HL36-0JH0 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. It's designed for line protection in distribution panels where you need a fixed thermal-magnetic trip and a healthy interrupting rating: 187 kA at 240 VAC, 121 kA at 415/440 VAC, 75.6 kA at 500 VAC, and 3 kA at 690 VAC.
That 105 mm width on a 3-pole frame means it fits standard Siemens SENTRON mounting bases and busbar systems — no custom drilling.
Minimum trip setting is 95 A, maximum 756 A on the magnetic instant trip — wide adjustment range for coordinating with downstream breakers.
