Overview Product Description Marathon Y500 microMAX AC Inverter Duty Motor 1/4 HP 1725 RPM 56C FRAME 3 PHASE 230 VOLT 1.0 AMP S.F. 1 SINGLE SPEED TENV REVERSIBLE RIGID BASE C-Face 0.625" X 2.06" SHAFT KEYED C-DIMENSION 9.91" Applications: Designed for direct replacement of PMDC or any other variable speed application where up to a 1000:1 constant torque speed range is required. Typical uses include: machine tools, conveyors, packaging machines, batching machines, and printing equipment. Features: Designed to replace PMDC motors (when used with VFD). Constant torque operation from 0 to base speed (TENV ratings). "Quick Connect" terminal board. Squirrel Cage Inverter Duty. Continuous Duty, Rolled Steel, Ball Bearings. Cross Reference: 56H17T2011 Product Videos Custom Field Product Reviews