• Meets NEMA Premium® efficiency; Frame Construction: 56C Frame-Rolled Steel.143TC-256TC-Cast Iron • Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower • Thermal Protection:56C Frame-Auto Overload,143TC-256TC-T-Stats; Class/Group:56 Frame-Class I, Groups C & D,143-256TC-Class I, Group D • Temperature Code:56 Frame-Class II, Groups F & G,143-256TC-Class II, Groups F & G • Conduit Box:56 Frame-T3B;143-256TC-T3B Service Factor:56 Frame-Shipped Loose;143-256TC-Installed • UL file # E12044 & CSA file #LR47504 • UL® Listed & CSA certified and CE® Mark