Chassis for MasterPacT MTZ2 drawout — 2000 A, L type
The LV848412 is a MasterPacT MTZ2 drawout chassis rated 2000 A at 40 °C, L performance level, 4 poles. It is the structural frame that receives the MTZ2 drawout circuit breaker — the chassis stays wired to the busbars and control wiring while the breaker itself can be racked out for maintenance or replacement without disturbing the power connections.
The L performance level (standard protection) suits general distribution; if the application requires selective coordination (S level) or high short-circuit withstand (H level), the chassis and breaker must be ordered as a matched pair. The 4-pole configuration covers three-phase plus neutral, common for 4-wire distribution where the neutral is switched. Drawout mounting means the chassis is fixed to the switchgear enclosure, and the breaker slides in on rails with a racking mechanism. This is standard for main and tie breakers in low-voltage switchgear where uptime matters — the breaker can be withdrawn for inspection or replacement while the chassis remains connected to the bus.
The chassis measures 556 mm wide, 439 mm high, 403 mm deep. That depth (403 mm) is the dimension behind the panel face — critical for enclosure depth planning, especially in retrofit or space-constrained switchgear lineups. The width and height determine the cutout and the mounting footprint on the enclosure floor.