AI Appraisal Estimate

This is a metallic manufacturer's nameplate for an ABB industrial electric motor, specifically model M3AA 160 L-2. The plate is rectangular, constructed from durable etched or stamped aluminum, and is secured to the motor housing with four rivets. It features a technical data grid providing specifications for various voltage inputs (380V to 690V) and frequencies (50Hz to 60Hz). Notable technical markings include a power rating of 18.5 kW to 21.00 kW, speeds up to 3510 r/min, and an IP55 protection rating. The plate displays the 'ABB Motors' branding, the CE mark, and manufacturing codes such as 'Prod. code: 3M16L02AD07001' and 'No. 50416R3 500 /2'. Structurally, the plate shows significant signs of industrial wear, including surface grime, oil staining, and slight corrosion around the edges and rivets. The surrounding cast-iron motor fins are visible, showing a dark, weathered patina and remnants of blue-grey paint. This component is essential for identifying the electrical and mechanical requirements of the underlying high-performance industrial equipment, likely dating from the early 2000s based on the IEC 60034-1 standard reference.

I have conducted a visual examination of the ABB M3AA 160 L-2 Three-Phase Induction Motor nameplate. Based on the technical specifications—principally the 18.5kW power rating and IP55 protection—this component belongs to a high-efficiency aluminum motor series favored for industrial applications. The nameplate appears authentic, exhibiting typical industrial weathering, including oil-filmed surface grime and minor oxidation consistent with a factory or plant environment. The presence of the CE mark and compliance with IEC 60034-1 confirm it was manufactured for the European or international market. The valuation reflects the secondary market for refurbished or surplus industrial components. The motor itself, if in working condition, would command a higher price, but the component's value is currently appraised based on its utility as a core for rebuilds or a replacement unit. Demand is steady but restricted to facilities using ABB infrastructure. Rarity is low, as these are mass-produced performance motors. A significant limitation of this appraisal is the lack of physical diagnostic data. I cannot verify the integrity of the internal windings, bearing health, or electrical insulation via a photograph. To provide a definitive valuation of the entire motor unit, an in-person Megger test (insulation resistance) and vibration analysis are required. Furthermore, the total operating hours remain unknown. Verification of provenance or maintenance logs would be necessary to elevate the value to the top of the estimated range. This appraisal assumes the motor housing is mechanically sound and that the plate remains legible for safety and compliance purposes.