Plate/panel mount 120/208/240-volt transformer to power 24-volt (AC) circuits. Although typically used in heating/cooling control systems, they can be used in any application that doesn't exceed load ratings. Provides color-coded lead wires for primary connections and screw terminals for secondary connections. Includes fixed 1/4-inch (6mm) male quick-connects or color-coded lead wires for primary and secondary connections. Meets NEC Class 2 requirements and Underwriters Laboratories Standard UL 1585. N.E.C. Class 2 not wet, Class 3 wet.