The Siemens 3VA2110-5MN36-0CC0 is a SENTRON molded case circuit breaker rated for 100 A continuously from 40 °C up to 70 °C, so it doesn't derate as the panel warms up — a solid pick for a packed enclosure next to a motor starter. The 187 kA breaking capacity at 240 V means it can clear a hard fault without the upstream breaker having to step in, which keeps your selective coordination intact on the line side.
Motor protection with phase-loss coverage
This breaker is built for motor protection, not just general distribution. It ships with phase failure detection built in and an undervoltage release (UVR) as the auxiliary release. That UVR will drop the breaker if line voltage sags below the dropout threshold, which keeps a motor from single-phasing and burning up on the route.
Auxiliary switch complement
The breaker carries two auxiliary switches (HQ type) for status feedback to a PLC or annunciator panel. The supplied basic switch is order code 3VA21105MN360AA0, so if you need a drop-in replacement for the switch block, that's the number to cross-reference.
Time-delay curve and power loss
The short-time delay is adjustable between 4 s minimum and 17 s maximum, which gives you room to ride through motor inrush without nuisance tripping. Maximum power dissipation is 12.5 W — modest enough that you don't need forced cooling in a standard panel, but it's worth accounting for in a tightly packed row of breakers.
Physical fit and environment
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep. That 105 mm width is standard for a 3-pole MCCB in this class, so it will fit existing panel cutouts and busbar risers without re-drilling. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.