H12

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H12: Type H Standard Trip Thermal Overload Bimetallic Heater Element, utilizing a factory-calibrated precision resistance alloy wrap configuration to monitor low-power fractional p ilot relays and facility ventilation motor control starters. It translates continuous excessive branch motor current lines cleanly into localized mechanical thermal expansion force, executing a safe physical trip latch movement to shield delicate electric motor windings from destructive high-current burnouts, housed in a standard plug-in open-chassis block format. Manufactured by Furnas Electric (Siemens). Show more