•IP-22 rolled steel, Meets or exceeds NEMA Premium®* efficiencies, NEMA Premium models are in compliance with EISA2007 •Class F Insulation System, Inverter duty 10:1 variable torque and 2:1 constant torque & 1.15 service factor on Sine Wave Power 1.0 SF on Inverter Power •NEMA® JM pump shaft dimensions, F1/F2 capable, Dynamically balanced rotors, Steel conduit box •Dual Frame Mounting, Removable Base (bolt on/off), Bearing Caps for C-Face Models •Rolled Steel - Removable Base (bolt on/off) for C-Face Motors; C-Face Footless models include drip cover •Modifications and Kits are available •40°C Ambient 1.15SF Sine Wave Power and 1.0SF inverter power •UL®* listed, UL certified for Canada and CE®* mark •Marathon is a trademark of WEG Electric Corp., used herein under license from WEG •Last Update: March 13, 2025