SENTRON 3VA2110-5MN36-0BH0 — Motor Protection MCCB, 100 A Frame
The Siemens SENTRON 3VA2110-5MN36-0BH0 is a 3-pole molded case circuit breaker (MCCB) in the motor protection product version, rated for a continuous current Iu of 100 A across the 40 °C to 50 °C ambient range. It carries an ETU350M electronic overcurrent release and an integrated undervoltage release (UVR), plus phase failure detection — so it's built to protect a motor branch circuit, not just a feeder. The 187 kA breaking capacity at 240 V gives serious fault-current headroom; at 415 V and 440 V it still interrupts 121 kA, and at 690 V it holds 17 kA. That's a wide voltage band for a 100 A frame.
What the Ratings Mean for Your Panel
The 100 A rating holds flat from 40 °C to 50 °C, then derates gradually to 90 A at 70 °C — so in a warm enclosure you still get most of the frame capacity. The ETU350M release is electronic, not thermal-magnetic, which means better pickup accuracy for motor inrush and adjustable trip curves. The 75 W maximum power loss matters for heat buildup inside a sealed panel; plan ventilation or derating if you're stacking multiple breakers. The auxiliary contact package (2 auxiliary switches + 1 trip alarm switch HQ) gives you status feedback for a PLC or annunciator without adding a separate block. The undervoltage release (UVR) is factory-fitted — part number 3VA9608-0BB11 for the auxiliary trip itself — so if your safety circuit drops power, the breaker opens without a separate shunt trip. Phase failure detection is built into the release, which is standard for motor protection but worth confirming if you're replacing a thermal-magnetic unit that didn't have it.
Integration Notes
Dimensions: 181 mm height, 105 mm width, 86 mm depth — fits standard MCCB panel cutouts for the 3VA frame size. The 3-pole block with factory-fitted UVR and auxiliary switches means it's a single SKU to order, not a kit of loose accessories. Operating temperature range is -25 °C to +70 °C; storage range is -40 °C to +80 °C. Rated insulation voltage Ui is 800 V, so it's comfortable on 480 V and 600 V class systems with margin.