Industrial M3AA 71B 4 Industrial Relay Module

ABB Baldor M3AA 71B 4 is a 3‑phase induction motor from ABB’s aluminum M3AA family. The 71B4 designation indicates a 71‑frame, 4‑pole unit with B3 foot mounting. It is rated at 0.37 kW (0.50 hp) and belongs to the IE2 high‑efficiency class, designed for reliable performance in standard three‑phase power networks. The aluminum housing provides a lightweight yet robust construction and helps with heat dissipation in compact installations. The model is documented under related catalog numbers such as 3GAA072312‑ASE; Baldor distributors also list a closely matched M3AA 71 B 4P B3 variant (MM07374‑S‑AP) at the same 0.37 kW rating. This combination of frame size, mounting style, and efficiency makes the M3AA 71B 4 suitable for replacing older iron‑cased motors in light‑duty drives and for use in automation equipment where space and weight are considerations.