Model 7501BLH NEMA 4, heated, insulated blanket to provide ANSI compliant tempered water in operating temperatures to -30®F (-34® C). The self-contained blanket easily installs on to existing model 7501 units. 120V, 2A, 1 phase electrical requirement. Power cord not provided - power connection must be made according to code using Class I Division 2 compliant equipment. Rated for hazardous location Class 1, Div 2. Built with CSA certified components.