Note that on small control transformers there will only be an X1 and X2. Again follow the manufacturer’s individual schematics for that particular type of transformer. Note these terminals will be identified by X1, X2, X3 and X4. Terminate the low side, low voltage of the transformer.If the high side terminals are bolts, be sure to follow any torque requirements that are listed by the manufacturer.

Terminate the high side, high voltage of the step down transformer.Insert the eye ring or wire lug over the bare copper wire and crimp the connection device, using the appropriate-size crimper, permanently to the wire. Strip back the outer insulating of the wires with the pocketknife or wire strippers.If you are using large wire lugs be sure to take into consideration the length of the lug and the amount of wire that can be inserted into the female crimp area. Terminate the feed power wires first by cutting the wires to length.Interconnection of the transformer will vary depending on the manufacturer and voltage used for feeding the transformer. This holds true regardless of the size of the transformer. Know termination identification follows for all step down transformers: H1, H2, H3 and H4 signify the high voltage side or power feed end of the transformer.Only the high amperage types will have this enclosure, while lower powered transformers will have an exposed screw terminal. Remove the terminal connection box cover placed at the lower side of the transformer. Observe and identify the schematic and rating of the step down transformer to be installed.Step-down transformers are commonly used to convert the 220 volt electricity found in most parts of the world to the 110 volts required by North American equipment. Transformers with copper windings cost more to purchase initially, but save on electrical cost over time as the efficiency more than makes up for the initial cost. Copper windings are much more efficient than aluminum and many other winding metal choices, but it also costs more. One of the most important considerations to increase transformer efficiency and reduce heat is choosing the metal type of the windings. You can buy transformers at very low prices from here

Step down transformer wire color code