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Fuji electric thermal overload relays are designed to provide overload protection to meet the thermal characteristics of low voltage induction motors. Adjustable thermal overload relays give motors positive overcuttent protection. The starter contacts cannot be held closing under overload conditions. However, once the bimetal element has cooled, the reset button can be depressed and the motor can be testrarted and the motor can be restrated in the normal manner. Ordinaryly this reset is carried out manually but the starter can be changed over to automatic reset by means of a screw-driver.