What this MCCB carries and where it fits
The Siemens SENTRON 3VA2110-7MS36-0KA0 is a 3-pole molded case circuit breaker rated 100 A continuous with a maximum rating of 1500 A and an interrupting capacity of 330 kA at 240 V — that SCCR headroom covers most industrial distribution transformers and motor branch circuits without needing a current-limiting upstream device. Designed as starter protection, it integrates a shunt trip (STL) auxiliary release for remote emergency-off or undervoltage tripping, which is the usual callout for a motor control center bucket or a standalone starter enclosure. The 86 mm depth and 105 mm width fit standard panel-mount cutouts; the 181 mm height leaves room for lug kit clearance above the line-side bus.
Interrupting capacity across voltage levels
At 415 V and 440 V this breaker holds 242 kA, dropping to 187 kA at 500 V and to 3.7 kA at 690 V. The steep fall at 690 V means it is not a primary choice for 690 V distribution — that 3.7 kA figure is adequate only for low-fault-current sub-circuits. At the common 240 V and 400 V class levels, the 330 kA and 242 kA ratings give selectivity headroom for a main breaker feeding downstream feeder breakers.
Panel integration and mounting
The 105 mm width and 86 mm depth fit a standard 3-pole MCCB cutout in a distribution panel or motor control center bucket. No DIN-rail mount — this is a bolt-on or plug-in base frame. The shunt trip wiring needs a separate control voltage source; verify the trip coil rating against the panel's 24 VDC or 110 VAC control supply before terminating. The 10 W maximum power loss means ventilation in a sealed enclosure is not critical, but keep it away from heat-sensitive components on the same sub-panel.
Temperature derating and storage range
The continuous current rating holds at 100 A from 40 °C through 70 °C — no derating needed across the typical panel ambient range. Storage range spans -40 °C to 80 °C, so it can sit in an unheated warehouse or a shipping container without issue. Operating minimum is -25 °C, which covers cold-start conditions in outdoor enclosures in most climates.