SENTRON 3VA2110-7MN36-0JL0 — 100 A MCCB for Motor Protection
The Siemens 3VA2110-7MN36-0JL0 is a SENTRON molded case circuit breaker (MCCB) designed specifically for motor protection, rated at 100 A continuous across the full ambient temperature range from 40 °C to 70 °C — meaning no derating is needed in a warm panel as long as you stay under that ceiling. It's a 3-pole unit with phase failure detection built in, so it catches a lost phase before the motor cooks. The auxiliary switch complement is 2 auxiliary switches plus 1 trip alarm and 1 electrical alarm switch HQ, and a shunt trip release (STL) is included for remote tripping.
Breaking Capacity — What the Voltage Steps Mean
This MCCB carries a massive 330 kA breaking capacity at 240 V, dropping to 242 kA at 415 V and 440 V, then 187 kA at 500 V, and 3.7 kA at 690 V. The steep drop at 690 V is the limit of the internal arc chamber — at that voltage the breaker is still usable for low-fault-current applications, but you'd typically step to a higher-voltage frame for 690 V main feeds. The 330 kA at 240 V means it can sit on a high-capacity transformer secondary without needing upstream current-limiting fuses. For motor protection duty, the 242 kA at 415 V covers most European industrial distribution panels.
Panel Fit & Integration
The 3VA2110-7MN36-0JL0 measures 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint that drops into a SENTRON panelboard or a DIN-rail adapter kit. The 86 mm depth is shallow enough for 200 mm deep enclosures without the breaker protruding past the gland plate. Power loss is 10 W maximum, so thermal rise in a sealed enclosure is manageable — no forced ventilation required for a single unit. Operating temperature range is -25 °C to 70 °C; storage from -40 °C to 80 °C.