Eaton's plug fuse safety switches have NEMA 1 enclosures that offer the ability to manually open and close a circuit and provide overcurrent protection by means of installed plug fuses. With a 30 Amp rating, plug fuses are available as single or double pole. The Eaton Cutler-Hammer 30 Amp 120/240-Volt 7,200-Watt Fused General-Duty Safety Switch.