The LV848400 is the drawout chassis for a MasterPacT MTZ2 20 air circuit breaker rated 2000 A at 40 °C, 3-pole. It is the mechanical frame that the breaker cradle slides into and out of for isolation and maintenance — a critical interface in any high-current switchboard. At 441 mm wide, 439 mm tall, and 403 mm deep, it occupies a standard MasterPacT MTZ2 cutout; verify the panel door clearance against that depth before committing the gland plate layout.
Drawout mounting means the breaker is racked in and out of this chassis — no unbolting of power connections during removal. The chassis stays fixed to the switchboard frame; the breaker slides on telescoping rails and engages the primary disconnects at the rear. For a site electrical engineer coordinating with the switchgear builder, this is the part that governs the cutout dimensions and the door interlock geometry. The performance level on the chassis matches the MTZ2 20 breaker it accepts — not a generic frame.