SENTRON 3VA2110-5MN32-0KC0 — 100 A MCCB for Motor Protection
The Siemens 3VA2110-5MN32-0KC0 is a SENTRON molded case circuit breaker (MCCB) rated 100 A continuous, with a 3-pole design and motor protection trip curve. It carries an interrupting capacity of 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — meaning it can safely clear high-fault currents across common industrial voltage levels without upstream damage.
Ratings and What They Mean for Fit
The 100 A rating holds flat from 40 °C through 70 °C ambient — no derating needed up to 70 °C, which simplifies panel sizing in warm enclosures or near heat sources. The trip time is adjustable between 4 s and 17 s, giving you selectivity headroom downstream while keeping the breaker fast enough to protect the motor branch. Built-in phase failure detection and motor protection design mean this breaker is tailored for three-phase motor circuits — it will trip on loss of a phase, preventing single-phasing damage. It ships with a shunt trip (STL) auxiliary release and two auxiliary switches, so you can remotely trip the breaker and report its status back to the PLC or safety system without adding external relays.
Panel Integration and Dimensions
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — standard MCCB footprint for a 100 A frame. It mounts on a DIN rail or panel-mount base, with line and load lugs sized for the 100 A rating. Operating temperature range is -25 °C to 70 °C, with storage from -40 °C to 80 °C — suitable for outdoor enclosures in moderate climates. Maximum power loss is 10 W, which is low enough to ignore in most panel heat calculations at this frame size.