SENTRON 3VA2063-5HN36-0HL0 — 63 A MCCB with ETU350, 3-pole, line protection
The Siemens 3VA2063-5HN36-0HL0 is a 3-pole molded case circuit breaker from the SENTRON 3VA2 series, rated for a continuous current Iu of 63 A and fitted with an ETU350 electronic trip unit. The ETU350 provides adjustable long-time, short-time, and instantaneous protection curves, plus a built-in voltage trigger for shunt-trip coordination.
Deployment and integration
The shunt trip (STL) integrated release allows remote tripping from an emergency-stop circuit or a PLC digital output — no separate undervoltage release is fitted, so the breaker will not drop out on a control-voltage dip unless the shunt is intentionally energized. The ETU350 is self-powered from the line current; no external control power is needed for the trip unit to operate.
Thermal derating and endurance
Above 50 °C the current must be derated: 60.6375 A at 55 °C, 58.275 A at 60 °C, 55.9125 A at 65 °C, and 53.55 A at 70 °C.
