The Siemens SENTRON 3VA2463-6HN32-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 630 A. It's built around the ETU350 electronic trip unit, which gives you adjustable long-time, short-time, and instantaneous protection curves — useful for coordinating downstream feeders without nuisance tripping. Breaking capacity is the headline here: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and still 40 kA at 690 V. That's serious fault-clearing muscle for high-available-fault-current panels — think utility tie points, large transformer secondaries, or industrial mains where the upstream transformer is big enough to deliver a 200 kA bolted fault. Thermal derating is published across the full operating range: 630 A at 40 °C, stepping down to 520 A at 70 °C. If your panel ambient runs hot — say 55 °C next to a drive cabinet — you're still good for 575 A continuous without oversizing the frame.
Lifecycle & Sourcing
The breaker ships with the basic switch 3VA2463-6HN32-0AA0 and the integrated auxiliary trip 3VA9608-0BB24 as internal components — these are the factory-fitted sub-assemblies, not field-installable accessories.
Integration & Mounting
Dimensions are 138 mm wide, 248 mm high, 110 mm deep — a standard 3-pole MCCB footprint that fits most panelboard cutouts and DIN-rail adapters. The 4 auxiliary switches HQ give you four form-C contacts for status feedback to a PLC or annunciator panel, which saves adding external relay blocks. Maximum power loss is 162 W at rated current — factor that into your enclosure thermal budget if you're packing multiple breakers in a sealed cabinet. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.