What this MCCB delivers
The Siemens 3VA2010-5HL46-0AA0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for line protection in 4-pole configuration, carrying a continuous current Iu of 100 A across the full ambient range from 40 °C to 70 °C — no derating needed up to the top of that band. Its interrupting capacity hits 187 kA at 240 V AC and 121 kA at 415 V and 440 V AC, dropping to 75.6 kA at 500 V and 3 kA at 690 V — numbers that tell you this breaker is built for high-fault industrial distribution, not light commercial service. The ETU320 electronic trip unit handles the overcurrent protection, and the N-conductor protection is adjustable — OFF, 50 %, or 100 % — giving the panel builder flexibility for different system grounding schemes.
Panel fit and environment
At 140 mm wide, 181 mm tall, and 86 mm deep, this 4-pole MCCB occupies a standard SENTRON 3VA2 footprint — it bolts into the same mounting pattern as other 3VA2 frames, so a panel laid out for a 3-pole 3VA2 can accept this 4-pole unit if the busbar and enclosure depth allow. Front protection is IP40, meaning tools and fingers stay out, but the breaker is not sealed against moisture — mount it inside a cabinet rated for the environment. Rated insulation voltage Ui is 800 V, and the maximum operating voltage is 690 V AC.