The ABB XT2LU3007MFF000XXX is a 3-pole Motor Circuit Protector (MCP) from the XT2L 125 series, set at a fixed 7 A trip rating and carrying UL/CSA approvals. This is the part you spec into a panel when the motor branch needs coordinated short-circuit and overload protection in a single, compact device — no separate fuse block or thermal overload relay for the short-circuit element. The 7 A fixed setting locks the protection curve to that motor FLA; there's no field-adjustable dial to drift or get mis-set by a previous shift.
The 7 A fixed trip rating governs both the thermal (overload) and magnetic (short-circuit) elements. For a motor branch, that 7 A sets the full-load current the MCP will carry continuously and the point at which it starts its inverse-time thermal curve. The 3-pole configuration covers three-phase motor loads. The XT2L 125 frame is the physical envelope: it dictates the DIN-rail footprint, the lug size for incoming and outgoing conductors, and the interrupting capacity the frame can deliver (the specific kAIC rating at 480Y/277 V would be in the full datasheet).
Snap-on DIN-rail mount to a standard 35 mm rail. The XT2L 125 frame occupies three modular spaces (each 18 mm wide) — 54 mm total panel width for this 3-pole unit. Wire range for the line and load lugs typically accepts 14 AWG to 2 AWG copper; torque specs per the nameplate. No separate mounting hardware needed — clip it on, torque the lugs, and it's live.