The Siemens 3VA2010-5HL32-0BC0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 100 A continuous current (Iu) with an ETU320 electronic overcurrent release. Its interrupting capacity hits 187 kA at 240 V AC and 121 kA at 415 V and 440 V, then drops to 79 kA at 500 V and 3.4 kA at 690 V — so the high short-circuit ratings at typical distribution voltages (240–440 V) are what define its panel role: main or feeder protection in high-fault installations like transformer secondaries or large motor control centers.
Current derating and thermal budget
The 100 A rating holds flat from 40 °C through 50 °C ambient — no derating needed in a typical 50 °C panel. At 55 °C it drops to 96.25 A, at 60 °C to 92.5 A, and at 70 °C to 85 A. Storage range is -40 °C to 80 °C; operating ambient is -25 °C to 70 °C.
Dimensions are 105 mm wide × 181 mm high × 86 mm deep. That 86 mm depth is shallow enough for most 200 mm deep enclosures with the door closed, and the 105 mm width fits a standard 3-pole MCCB cutout. The 3VA2 family uses the same mounting pattern as earlier SENTRON 3VA1 breakers, so a panel laid out for a 3VA1112-5EF32-0CA0 accepts this unit without drilling new holes — the bus-bar and lug positions align.