Voltec 30 Amp & 50 Amp Replacement Heads 30 Amp Male. The Voltec 30 Amp & 50 Amp Metal Boxes are made from a high quality and durable plastic that makes the replacement process easier than ever. They come in a size of 30 Amp and 50 Amp and are designed with a metal box to help with the protection of the wires and connections inside. These replacements meet both UL and ULcen requirements. Whether you're looking for a replacement head or you're looking for an upgrade to your current 30 Amp & 50 Amp sockets look no further than the Voltec 30 Amp & 50 Amp Replacement Heads. They will provide you with a new socket with a metal box and all of the protections they come with. They are designed for the safety of the person in the box. If the body of the box appears to be compromised in any way shape or form the customer should give Voltec a call so that we can properly assist you with returning the receptacle to normal operating condition. Getting arced is the worst thing you can do. We highly suggest replacing this fused receptacle with a new one. Package Contents: Voltec 16-00580 30 Amp & 50 Amp Replacement Heads 30 Amp Male Voltec 16-00580: 30 Amp & 50 Amp Replacement Heads 30 Amp Male