GE motors are designed and manufactured to operate efficiently and reliably in challenging applications and severe environments where reliability and ease of maintenance is critical. We work with all applicable standards such as IEEE, NEMA, and UL. GE explosion proof machines are available for use in Division 1 environments as specified. Three-year warranty is standard. This comprehensive warranty program covers both mechanical and NEMA Premium efficiency performance (36 months operational/40 months maximum from shipment). Hazardous Location UL Listed Division 1 Class 1 (Gas) Groups C & D / Class 2 (Dust) Groups F & G 40C Ambient VFD rating 5:1 constant and 10:1 variable torque Temp Code T3C 1.15 Service Factor 55C Ambient on sinewave power 143T-215T frame - Temp Code T3C 254T-449T frame - Temp Code T2B 1.0 Service Factor Technical Scope 1-300 HP, 900-3600 RPM 230/460, 460, 575V / 60 Hz Alternate 50 Hz data on nameplate TEFC (IP55) Frame sizes: 143T-449T NEMA, UL, CSA, IEEE 112B