SENTRON 3VA1063-2ED42-0AE0 — 63 A MCCB for Panel Distribution
The Siemens 3VA1063-2ED42-0AE0 is a SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous at 40 °C, with a 4-pole configuration and a TM210 thermal-magnetic release. It's a line-protection device — meaning it's built for feeder and distribution circuits, not motor-starting duty. The interrupting ratings climb to 52.5 kA at 240 V and still hold at 32 kA on a 415 V system, so it handles high-fault service-entrance panels without cascading upstream. That keeps the BOM simple and the part field-replaceable without calibration gear. If the line needs adjustable long-time or short-time pickup, you'd step up to the electronic-release variants in the 3VA family. For a straightforward 63 A feeder, this is the one that's on the van and ready to swap.
Interrupting Capacity and Thermal Derating
Interrupting capacity drops as system voltage rises: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V. That 690 V figure is worth noting — most 4-pole MCCBs in this frame size don't carry a 690 V rating at all. It means the breaker can serve 690 V delta or 400/690 V star systems, common in European industrial plants and mining. Thermal performance is stable up to 50 °C — the breaker holds 63 A flat. At 55 °C it derates to 60.48 A, and at 70 °C it's 56.7 A. That's a gentle slope; you don't lose a full size step until well above 60 °C.
That width is a standard 4-pole MCCB pitch — it fits the same DIN-rail or screw-mount pattern as other 160 A frame SENTRON breakers. Four auxiliary switches (HQ type) come integrated, so you get position feedback without an add-on module. If the spec calls for remote trip or GF protection, you'd order a variant with those options or add external modules.