Transformers and phase converters adapt power supplies, protecting equipment from damage. Control transformers convert high or low voltage to suit the application. Single and three phase transformers convert long distance currents for high-current and industrial applications. Class 2 transformers step down a voltage to protect a control circuit. Buck boost transformers connect to incoming AC voltage in single or three phase applications, stepping the voltage up or down. International voltage converters change voltage levels, allowing them to work with electrical products manufactured in another country. Phase converters adapt single phase to three phase power, catering to higher loads. Current transformers step down amperage to protect measuring devices like panel meters, while allowing them to measure. Isolation transformers shield electrical equipment from damage caused by electrical noise. Plug-in transformers and power supplies deliver safe power levels to compatible equipment.