The Siemens SENTRON 3VA2063-5HL42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 63 A continuous current, designed for line protection in distribution panels. It carries an ETU320 electronic trip unit, giving you adjustable overload and short-circuit protection curves — not a fixed thermal-magnetic, so coordination studies stay tighter.
Breaking capacity and voltage levels
Breaking capacity varies with system voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. That 187 kA at 240 V tells you this breaker handles high-fault utility feeds without cascading upstream — useful for main or tie positions where SCCR is the limiting factor.
Thermal performance and mounting
Rated current holds at 63 A across the full ambient range from 40 °C to 70 °C — no derating curve to chase in a warm enclosure. Dimensions are 181 mm high, 140 mm wide, 86 mm deep; the 4-pole width (140 mm) is standard for a SENTRON 3VA frame, so it drops into existing panel layouts without re-drilling the mounting plate. Front IP40 protects against tool contact; rear and sides are open to the enclosure.
Lifecycle and sourcing
Listed as current production. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.