Built-in auxiliaries and release
This breaker ships with an integrated undervoltage release (UVR) and two HQ auxiliary switches — no separate add-on modules to order and snap in. The UVR drops the breaker if control voltage falls, standard for safety circuits on motor branch feeders. Designed for line protection — meaning it protects cables and busbars from overload and short circuit, not a specific motor or load. Pair it with a contactor for motor duty.
Panel fit and footprint
Dimensions: 105 mm wide, 181 mm tall, 86 mm deep. That 105 mm width is a standard 3-pole MCCB footprint — fits the same panel cutout as other SENTRON 3VA frames in this current class. No surprises when swapping or laying out a new build. Operating range: -25 °C to 70 °C ambient; storage: -40 °C to 80 °C.
