The TMF trip provides fixed thermal overload protection against sustained overcurrent and fixed magnetic protection against short-circuit events — no field-adjustable dials, so the trip curve is set at the factory for a defined load range. This suits applications where the load is known and stable, such as a dedicated pump or conveyor motor branch.
The 3-pole, 125 A frame size dictates the busbar spacing and cable lug dimensions — verify the lug hole pattern and torque specs from the ABB mounting guide before terminating. The TMF trip is factory-set, so no calibration or adjustment is needed during installation; just confirm the load current is within the fixed trip range.