Welding is a very important part in the development and growth of the industry because it has a role in engineering, repair and construction. Spot welding resistance is the process of connecting two or more materials using electrodes in the form of copper as a heat energy diverter to melt the material. Spot welding resistance is a type of welding that uses the principle of electrical resistance with the help of pressure to conduct welding on the workpiece. The average circulating on the market uses high power and requires high electrical power with the prices circulating also quite expensive. In this design carrying a spot spot resistance device using 1000 Watts of power that can be used in household electricity and can be used for small industries. This spot welding resistance uses an electrical resistance method to connect objects. In this design it uses four thickness variations ranging from 0.5 mm, 1 mm, 1.5 mm to find out how much time, power and voltage are needed from four different specimens. At 0.5 mm plate connection requires 229 V voltage and 3.08 A electric current in a period of 9 seconds. for plates with a thickness of 1 mm the connection of the plate requires a voltage of 231 V and an electric current of 3.18 A in a period of 15 seconds. for plates with a thickness of 1.5 mm connecting the plate requires a voltage of 231 V and an electric current of 5.40 A in a period of 35 seconds.