The Siemens SENTRON 3VA2010-5KP32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, built around the ETU850 electronic trip unit. It is designed for line protection in industrial distribution panels where high fault current capacity is required — 187 kA at 240 V and 121 kA at 415 V. The ETU850 trip unit provides adjustable overcurrent protection with communication capability, allowing integration into a monitored power distribution scheme. The breaker carries an insulation voltage rating of 800 V and maintains full rated current (100 A) across the entire operating temperature range from -25 °C to 70 °C without derating. At 690 V the interrupting capacity drops to 3 kA — this breaker is optimized for 240–500 V systems where its interrupting ratings are strongest. The front face carries IP40 protection; the unit is intended for enclosed panel mounting.
Sourcing and Lifecycle
Maximum power loss is 13.5 W, which should be factored into enclosure thermal calculations for panels with multiple breakers in close proximity.
Dimensions and Panel Fit
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep. The 105 mm width is the standard 3-pole MCCB footprint for the SENTRON 3VA2 frame — it occupies the same panel cutout as other 3VA2 three-pole units. Depth of 86 mm leaves clearance for rear-mounted busbars or wiring ducts in a typical 600 mm deep enclosure. Storage temperature range is -40 °C to 80 °C, exceeding the operating range — relevant for site storage before installation or for panels in unconditioned spaces.