The Siemens 3VA2063-5JP32-0AF0 is a SENTRON molded case circuit breaker rated for 63 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling, which simplifies panel thermal budgeting. The interrupting capacity hits 187 kA at 240 V and 121 kA at 415 V, so it handles high-fault utility feeds without cascading upstream. The ETU550 electronic release gives adjustable long-time (tr 0.5–25 s) and short-time delay (tsd up to 0.5 s), letting you coordinate selectively with downstream breakers.
The 3VA2063-5JP32-0AF0 measures 105 mm wide, 181 mm tall, and 86 mm deep — a standard three-pole MCCB footprint for DIN-rail or panel-mount installation. The 86 mm depth fits typical distribution board gutters; verify gland-plate clearance if back-panel wiring is tight. The ETU550 release is field-adjustable via the front dials, so no software tool is needed for coordination setup.