Attributes . UL-3R ventilated outdoor enclosures when used with optional weather shields (order separately), UL class 220 DEG C/428 DEG F insulation system, 150 DEG C/302 DEG F temperature rise under full load, Terminal board connections and spacious wiring compartment, Panel enclosure design with wiring diagram on inside front cover reduces labor time, High efficiency for low cost operation, Compliant with NEMA TP-1 standards, Single and three phase models. . Names