User-agent: *
Disallow: /memberBuyContactors , Buy Contactors A magnetic starter is a contactor designed to provide power to electric motors. The magnetic starter has an overload relay attached physically and electrically. The overload relay will open the supply voltage to the starter if it detects an overload on a motor.[4][5] Overload relays may rely on heat produced by the motor current to operate a bimetal contact or release a contact held closed by a low-melting-point alloy. The overload relay opens a set of contacts that are wired in series with the supply to the contactor feeding the motor. The characteristics of the heaters can be matched to the motor so that the motor is protected against overload. Recently, microprocessor-controlled motor protection relays offer more comprehensive protection of motors.