The 3-pole construction means it simultaneously opens all three phases on a fault — standard for three-phase motor and distribution circuits in industrial panels.
Mounts on standard DIN rail or direct-panel backplate via the XT1H base. The 3-pole form factor occupies the same width as other XT1 breakers, so retrofitting into an existing panel layout is straightforward — no re-drilling or busbar rework needed. Torque terminal connections to the value specified on the device label; the TMF unit is factory-set and non-adjustable, so the protection curve is fixed at the ordered rating.