Siemens SENTRON 3VA2010-6HN32-0KA0 — 100 A MCCB with ETU350 Trip Unit
The Siemens SENTRON 3VA2010-6HN32-0KA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current (Iu) at 40 °C, with a breaking capacity of 242 kA at 240 V AC and 187 kA at 415 V AC. It uses the ETU350 electronic trip unit, configurable for line protection, and includes a shunt trip (STL) auxiliary release for remote tripping. No auxiliary contacts or communication module are fitted; this is a standalone breaker for high-fault-current distribution panels.
Breaking Capacity and Thermal Derating
At 240 V, the breaker clears 242 kA — suitable for transformer secondaries or large busway taps. At 415 V it still holds 187 kA, dropping to 121 kA at 500 V and 4 kA at 690 V. The continuous current derates above 55 °C: 96.25 A at 55 °C, 92.5 A at 60 °C, 88.75 A at 65 °C, and 85 A at 70 °C. Maximum power loss is 13.5 W. Operating temperature range is -25 °C to 70 °C; storage from -40 °C to 80 °C.
Physical Fit and Panel Integration
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep. The 105 mm width is standard for a 3-pole MCCB in a distribution board — verify the mounting footprint against your panel cutout. No auxiliary contacts or undervoltage release are included; the shunt trip (STL) is the only internal auxiliary release. The basic switch is 3VA2010-6HN32-0AA0, and the integrated auxiliary trip is 3VA9688-0BL33.