Rating and fit
The Siemens SENTRON 3VA2110-8KP46-0AA0 is a 4-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed in a warm enclosure. The ETU850 electronic trip unit gives you adjustable long-time, short-time, instantaneous, and ground-fault protection curves, so it's suited for feeder or main breaker duty in a distribution panel. Interrupting capacity hits 440 kA at 240 V, 330 kA at 415/440 V, 220 kA at 500 V, and 52.5 kA at 690 V — high enough for most industrial service-entrance or transformer-fed applications where fault current is stiff. The 800 V rated insulation voltage covers 480/600 V class systems with margin. It includes a communication function for integration into a power monitoring or energy management system, though the specific protocol (PROFIBUS, PROFINET, Modbus) is not detailed in this listing. The front protection is IP40 — suitable for a closed panel; not rated for washdown.
Sourcing and lifecycle
The 3VA series is the successor to the older 3VL family. If you're replacing a 3VL frame, the mounting footprint and bus-bar centers differ — verify panel cutout dimensions against the 86 mm depth, 140 mm width, and 181 mm height of this unit before ordering.
Physical integration
Dimensions: 86 mm deep, 140 mm wide, 181 mm tall (3.39 x 5.51 x 7.13 in). It's a standard 4-pole MCCB footprint for Siemens SENTRON — mounts via the rear screw terminals or optional plug-in base. The 7.7 W maximum power loss is modest; no forced cooling needed in a typical enclosure, but account for it in the thermal budget if grouping several breakers. The unit ships without an undervoltage release or shunt trip — those are optional accessories. No voltage-trip or ground-fault monitoring module is factory-installed. The trip indicator is not present on this variant, so you won't get a local mechanical flag for trip cause.