Attributes . 40 A (NO) @ 120 to 277 V ac (General Purpose);30 A (NO) @ 120 V ac;20 A (NO) @ 208 to 277 V ac (Ballast);15 A (NO) @ 120 V ac (Tungsten);30 A @ 28 V dc (Resistive);40 A (NO) @ 120 to 277 V ac (Inductive) . Names