Toshiba B1258FLF4OSHJ EQPIII 841 TEFC inverter duty motor, 125 HP, 900 RPM, 575V three-phase, 447T frame. Totally Enclosed Fan Cooled enclosure with NEMA Premium Efficiency. Designed for variable frequency drive applications requiring constant torque across a wide speed range.

Toshiba's general purpose, totally enclosed fan cooled, NEMA Premium efficiency, EQPIII-841 motor series addresses the special requirements of the petrochemical industry where motor performance and reliability are imperative. This product line was built using the cornerstone of the Toshiba motor product offering as a base, and it is designed for indoor and outdoor use in the harshest environments where premium performance and reliability are a must. Its performance offers 20 to 1 constant torque, oversized bearings, IP56 protection, Class F insulation system and NEMA Premium design, meeting the NEMA energy efficiency requirements as listed in NEMA MG1 Table 12-12. These motors are built to meet or exceed IEEE standard 841 specifications and feature a labyrinth seal on both DE and ODE.