Siemens 3VA2010-6HL46-0AA0 — 100 A SENTRON MCCB with ETU320
The Siemens 3VA2010-6HL46-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current across its full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That 100 A holds at every 5 °C step, so it's a straight 100 A breaker for most panel environments. Four poles, line-protection design, fitted with an ETU320 electronic trip unit. The trip range is adjustable between 150 A and 1 200 A — that's the short-circuit and overload pickup window, not the continuous rating. The 100 A continuous frame stays fixed; the ETU320 lets you dial the magnetic/instantaneous threshold within that band to coordinate with downstream devices. Interrupting capacity is the headline here: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V. That 242 kA figure at 240 V means it can clear a fault on a high-capacity transformer secondary without the arc re-striking — a strong selectivity anchor for a distribution board. At 690 V the 3 kA rating is lower, so if your circuit runs at that voltage, verify the available fault current stays under that ceiling.
Integration and mounting
Mounts in a standard panel footprint: 181 mm tall, 140 mm wide, 86 mm deep. The IP40 rating on the front means it's protected against tools and wires >1 mm — fine for a clean indoor switchboard, but not for washdown zones. No undervoltage release, no voltage trigger, no ground-fault monitoring version on this variant. Rated insulation voltage is 800 V, so it's suitable for 480/277 V and 600 V systems with margin. Maximum power loss at rated current is 13.5 W — negligible for panel thermal budgeting but worth noting if you're packing multiple breakers in a small enclosure.
Peer comparison — 3VA1110-5ED36-0AA0
The closest functional sibling in the SENTRON family is the 3VA1110-5ED36-0AA0. Both are 4-pole MCCBs with electronic trip units, but the 3VA1110 frame is physically smaller and rated for lower interrupting capacities. The 3VA2010-6HL46-0AA0 carries the higher SCCR (242 kA vs the 3VA1110's typical 65-100 kA range at 240 V) and the wider trip adjustment band. If your panel was specified around a 3VA1110, the 3VA2010 will not drop in without checking the mounting footprint — the 3VA2010 is taller and deeper. Rewiring is not the issue; the bus-bar and enclosure cutout dimensions differ.