The Siemens SENTRON 3VA1063-2ED36-0BC0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection. It carries a continuous current of 63 A at 40 °C, with minimal thermal derating up to 70 °C — still delivering 58 A at the top of the ambient range. Breaking capacity runs from 52.5 kA at 240 V down to 7.5 kA at 690 V, so the interrupting rating is voltage-dependent; check the specific fault level at your system voltage before committing the BOM line.
Breaking capacity and selectivity
At 415 V the breaker interrupts 32 kA, dropping to 13.6 kA at 440 V and 7.5 kA at 500 V and 690 V. That voltage sensitivity matters for selectivity studies: downstream devices must coordinate within these limits. The insulation voltage is rated 800 V, so the breaker is physically built for 690 V systems, but the interrupting rating at that voltage is the constraint for fault-current coordination. The 3VA1063-2ED36-0BC0 ships with an undervoltage release (UVR) and two auxiliary switches HQ built in. No communication module — this is a standalone line-protection breaker, not a power-monitoring node. If you need metering or remote trip indication later, the auxiliary switches give you a dry-contact signal back to a PLC input.
Panel fit and integration
The breaker footprint is 76.2 mm wide by 130 mm tall by 70 mm deep — a standard 3-pole MCCB width that fits most DIN-rail or panel-mount enclosures without surprises. Maximum power loss is 19.8 W; factor that into the enclosure thermal budget if the panel is densely packed.