Model 7501BL240 NEMA 4 heated, insulated blanket to provide ANSI compliant tempered water in operating temperatures to -20° F (-30° C). The self-contained blanket easily installs onto existing model 7501 units. 240VAC, 50/60Hz, 0.64A electrical requirement. Power cord not provided - must install appropriate cord per code. Haz Loc options available. CSA certified for NEMA/Type 4 in ordinary locations and to ANSI/ISEA Z358.1.