The Schneider Electric LV839333 is a MasterPact MTZ2 cradle for drawout circuit breakers, 3-pole, rated 800-2000 A at 104 °F (40 °C). It's the frame that receives the breaker cassette in a drawout installation — the part that bolts to the bus and carries the primary disconnects. The 800 A floor on the rated operational current means it's sized for the MTZ2 frame's lower band; the 2000 A ceiling matches the standard MTZ2 breaker ratings up to that level. UL/ANSI listed per the description, so it's accepted for North American panel builds without additional agency evaluation.
Integration Note
Drawout mounting means the cradle stays in the switchgear cubicle while the breaker cassette slides in and out on telescoping rails. The 3-pole configuration matches three-phase power distribution in LV switchboards. Rated operational current spans 800-2000 A at 104 °F (40 °C) — the thermal derating above that ambient is on the breaker, not the cradle, but the cradle's continuous-current path is the same copper cluster. Verify the cradle's horizontal/vertical bus connection orientation against your switchboard layout before ordering; the MTZ2 cradle ships as a mounting accessory, not a breaker, so the bus stabs and secondary disconnect blocks are part of this assembly.