What this MCCB carries and where it fits
The Siemens 3VM1110-3ED42-0AA0 is a SENTRON molded case circuit breaker rated for 100 A continuous current at 40 °C, holding that rating flat through 50 °C before a gentle derating curve begins — 98 A at 55 °C, 96 A at 60 °C, down to 91 A at 70 °C. That thermal stability matters when the breaker sits in a crowded panel next to other heat sources; you don't lose headroom until the ambient pushes past 50 °C. Four poles, TM210 thermal-magnetic trip unit, no ground-fault monitoring, no motor drive option — this is a straight line-protection MCCB for distribution panels where you need a clean 100 A feed with adjustable instantaneous pickup up to 1000 A.
Breaking capacity by system voltage — the real SCCR story
Interrupting capacity varies sharply with system voltage: 76 kA at 240 V AC, 53 kA at 415 V, 32 kA at 440 V, and 12 kA at 500 V. On a 480 V panel you're between the 440 V and 500 V figures — plan conservatively. The 690 V rated insulation voltage (Ui) gives headroom for the insulation system, but the breaking numbers govern fault clearing.
Panel fit and environmental limits
Dimensions are 101.6 mm wide by 130 mm tall by 70 mm deep — a standard 4-pole MCCB footprint that drops into SENTRON distribution blocks and panelboards without adapters. Front face carries IP40 protection; the rest of the enclosure is open to the panel interior, so mount where cabinet IP rating handles the environment. Operating temperature range -25 °C to 70 °C, storage from -40 °C to 80 °C. Maximum power loss 25 W — factor that into enclosure ventilation if the panel is densely packed.