Manufacturer Name: Carrier Product Number: HN51KB024 OEM Part Number: HN51KB024 Product Description: 1Pole 25Amp Contactor,24V Coil Weight:0.51lbs/231.33g The Carrier HN51KB024 single pole-Contactor for Carrier HVAC equipment air conditioners, heat pumps, furnaces and package units. It is a high current relay that directs current to parts of your system as required. https://www.partshnc.com/1pole-25amp-contactor24v-coil-2