The Siemens SENTRON 3VA2010-5KP32-0HC0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, with a breaking capacity of 187 kA at 240 V AC. It is designed for line protection in distribution panels and motor control centers, with a shunt trip (STL) auxiliary release and two HQ auxiliary switches built in. The unit includes a communication function for integration into higher-level monitoring systems.
Breaking capacity across the voltage range
This MCCB delivers 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. The steep drop at 690 V means it is not intended for 690 V line-side fault duty in high-fault installations — that 3 kA rating is effectively a switching capability, not a full-rated interruption. For 400 V class panels, the 121 kA figure provides substantial SCCR headroom for most industrial transformer ratings.
Thermal performance and derating
The continuous current rating holds at 100 A across the full ambient range from 40 °C to 70 °C — no derating required within that window. Maximum power loss is 13.5 W. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.
Physical fit and panel integration
Dimensions are 181 mm height, 105 mm width, 86 mm depth. The 105 mm width is standard for a 3-pole MCCB in a Siemens SENTRON panelboard — it occupies three 35 mm module spaces. Depth of 86 mm fits within typical 200 mm deep enclosures, leaving room for wiring and bus connections.