The Siemens 3VA2110-5MN36-0AG0 is a SENTRON molded case circuit breaker (MCCB) designed specifically for motor protection. It carries a continuous 100 A rating across the full ambient temperature range from 40 °C to 70 °C — no derating needed up to that ceiling, which simplifies panel sizing in warm enclosures. Breaking capacity hits 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. That 187 kA figure at 240 V means it handles high-fault utility feeds without cascading upstream — a real advantage on industrial services with stiff transformers. Three-pole construction with built-in phase failure detection and a trip indicator. The auxiliary switch pack includes one auxiliary switch plus one trip alarm switch, giving the PLC a clean signal on fault events without an add-on module.
Panel Fit & Mounting
Dimensions are 86 mm deep, 105 mm wide, 181 mm tall — a standard MCCB footprint that drops into most SENTRON distribution panels and motor control centers without re-drilling the mounting plate. Max power loss is 10 W, so heat dissipation inside a sealed enclosure is manageable. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The storage minimum matters if the breaker sits in an unheated warehouse before installation.