MCCB for line protection — 100 A, 187 kA interrupting
The Siemens SENTRON 3VA2010-5HN36-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current at 40 °C, with a line protection design that prioritizes feeder and distribution circuit duty. Its interrupting capacity reaches 187 kA at 240 V AC and 121 kA at 415/440 V, dropping to 75.6 kA at 500 V and 3 kA at 690 V — the 187 kA figure at 240 V is the headline number for high-fault applications like large transformer secondaries or service-entrance panels. The insulation voltage is rated 800 V, supporting 480/600 V systems with headroom. Four built-in auxiliary switches (HQ design) provide status feedback without an add-on module.
Selectivity and coordination notes
For a panel originally specified around the 3VA1110-5ED36-0AC0, the 3VA2010-5HN36-0AE0 shares the same SENTRON platform and 100 A frame, but the 3VA1110 series typically carries a lower interrupting rating and different trip-unit options. The 3VA2010-5HN36-0AE0 uses a fixed thermal-magnetic trip (line protection) with no electronic adjustment — verify that the trip curve matches your coordination study. The 86 mm depth and 105 mm width are within the standard 3VA footprint, so physical panel drop-in is likely, but the auxiliary switch count (4 HQ) may differ from the 3VA1110's configuration; re-termination of the control wiring may be needed if the existing panel uses a different aux layout.
Panel integration
Mounts on a DIN rail or panel-mount base (standard for SENTRON 3VA). The 86 mm depth fits within a 200 mm enclosure depth with room for wiring gutters. Operates from -25 °C to 70 °C; storage range -40 °C to 80 °C. Power loss at rated current is 13.5 W — account for this in enclosure thermal calculations, especially in sealed cabinets.