![]() Wire nuts are also available for aluminum wires, weatherproof, underground and high temperatures.Īdditional information on terminating wires You should always use the wire connectors that have the wire spring inside. Note: Some wire connectors have a wire spring inside them that grip the wires, others do not. However, having a kit of assorted sized wire nuts means that you will be able to connect almost any combination of wires. Table 1 - Wire Nut/Connector Sizesįor the home handyman the wire connectors that will do 99.5% of the tasks around the home are red and yellow. Table 1 provides the basic wire nut/connector sizing considerations. ![]() There are of course dozens of wire gauges and the combinations of wire gauge size connections that can be created are in the thousands.īut as most home handymen are working with normal house electrical circuits we will deal with the most likely gauges and connections that they will face. Using a wire connector that is to small will prevent the twisted wires from entering the wire connector to a depth that provides proper holding power and insulation.Using a wire connector that is to big will result in poor grip onthe wires.To avoid problems, such as loose wire connectors causing intermittent power problems or even worse causing a fire, it is important that the proper size wire connector is used when joining wires.Īlthough many of the new wire connectors say that pre-twisting the wires is not necessary, in my opinion creating a solid mechanical joint, see Figure 2, will prevent wires from dislodging from the wire connectors at a later date, especially if multiple gauge wires and/or stranded and solid wires are being held by one connector. Many manufacturer's make similar products under their own trade names and trademarks. It should be noted that "wire nut" is a trademark of Ideal Industries, but like Kleenex, it has become the primary identification for the product. ![]() It not only holds the joint secure, but provides insulation for the mechanical wire joint. A wire nut is a device that aids in the connection of a group of electrical wires. Any DIY home handyman who as undertaken any electrical work has used wire nuts (Figure 1).
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