The Siemens SENTRON 3VA2110-5JP32-0KA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. It is designed for line protection in distribution panels, with a shunt trip (STL) auxiliary release and communication function for integration into monitored systems.
Breaking capacity across voltage levels
This MCCB delivers 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The steep drop at 690 V is typical for this frame size — the internal arc energy scales with voltage, and the 3.7 kA figure means it is not the right choice for high-fault 690 V feeders unless the available fault current is below that threshold.
Physical fit and panel integration
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep. The 105 mm width is a standard 3-pole MCCB footprint.
Key ratings and what they mean for selection
The 100 A continuous rating is confirmed at every 5 °C increment from 40 °C to 70 °C — no thermal derating curve to apply in a warm enclosure. The insulation voltage is rated 800 V, which covers 480/277 V and 600 V systems with margin. The shunt trip (STL) allows remote tripping via a control signal; the communication function supports integration with building management or SCADA systems for status and alarm monitoring.