SENTRON 3VA1163-3EF36-0HH0 — 63 A MCCB for line protection
The Siemens SENTRON 3VA1163-3EF36-0HH0 is a 3-pole molded case circuit breaker rated 63 A at 40 °C, designed for line protection in distribution panels. Its interrupting capacity reaches 75.6 kA at 240 V, tapering to 52.5 kA at 415 V and 11.9 kA at 690 V — so it handles high-fault utility feeds without cascading upstream. The 800 V rated insulation voltage gives headroom for 480/600 V systems.
Ratings and what they mean for your panel
Rated current holds flat at 63 A from 40 °C to 50 °C ambient, then derates gradually to 58 A at 70 °C (–). That means in a warm enclosure you still get nearly full rating — no need to oversize for a 50 °C panel interior. The 75.6 kA SCCR at 240 V is the figure that governs fault withstand for most North American commercial services; at 415 V (52.5 kA,) it still clears heavy industrial faults. The shunt trip (STL) auxiliary release and the 2 auxiliary switches plus trip alarm switch allow remote tripping and status feedback — useful for emergency-off circuits or PLC-based monitoring.
Lifecycle and sourcing
Listed as current production. The 3VA1163-3EF36-0HH0 is sourced and quoted to order through independent distribution; volume pricing and availability are confirmed at quote time.
Panel fit and integration
Mounts on a DIN rail or panel — the 70 mm depth and 76.2 mm width fit standard 3-pole MCCB footprints. The 130 mm height leaves room for cable glands above. No communication module, so it's a straight electromechanical breaker — no bus address to set, no firmware to match.