Count AutomationDirect as one of the firms now offering 1-to 10-hp NEMA premium efficiency inverter duty motors. These TEFC motors are said to meet or exceed NEMA Premium efficiencies for optimized motor system efficiency, reduced electrical power consumption and improved system reliability. When used on high cycle or long run time applications, NEMA Premium efficiency motors offer substantial energy savings. These inverter-duty motors with rolled steel construction and C-face rigid base mounting use ball bearings and are electrically reversible. NEMA Premium Efficiency XRI motors start at $310.

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