MCCB with ETU550 for line protection
The Siemens SENTRON 3VA2110-8JP46-0AA0 is a 4-pole molded case circuit breaker rated for 100 A continuous current, designed for line protection in distribution panels. It carries the ETU550 electronic overcurrent release, which provides adjustable trip curves for selective coordination downstream. Breaking capacity reaches 440 kA at 240 V AC, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V — sufficient for high-fault utility feeds or transformer secondaries where SCCR headroom is critical. Rated insulation voltage is 800 V, and the front face carries IP40 protection — suitable for enclosed panel mounting where the breaker is not exposed to washdown or dust ingress.
Dimensions and integration
The breaker measures 86 mm deep, 140 mm wide, and 181 mm high — a standard SENTRON 3VA frame size that fits existing panel cutouts and busbar layouts for 4-pole MCCBs in this class. Maximum power loss is 7.7 W, which informs thermal budgeting inside the enclosure — no forced cooling required for a single unit at rated load.
Communication and monitoring
The breaker includes a communication function, enabling integration with energy management or SCADA systems for remote monitoring and trip-event logging — a feature not available on all SENTRON 3VA variants. It does not include an undervoltage release, voltage trigger, ground-fault monitoring, or trip indicator as standard — these are separate accessory options if the application requires them.