Relays and contactors are available to meet customer specification. Contactors are available in one or three phase, 10-200 amps and 115-480 volts. Relays are available with heat sinks for use to 40 amps or without for use up to 15 amps. Solid-State relays or SCR’s are available with one, two or three poles and in 35, 60 or 100 amp sizes.