The high 80A current rating makes it compatible with large-tonnage three-phase HVAC systems

blown noise filter fuses

While the operating range is 100 to 240

Direct OEM Compatibility: Replaces Lennox 102857-08 and Allied 102857-08 part numbers with factory-spec accuracy

United Electric B54-109 Temp Switch 320788-704 The high 80A current ratingThe United Electric B54 109 is a rugged, NEMA 1 enclosure immersion temperature switch designed for reliable heavy duty performance in HVACR and process monitoring. Featuring a brass immersion stem with a 3 8" OD and 2 1 8" length, this unit is engineered to manage high fluid temperatures across an adjustable range of 200 to 425 F (93. 3 to 218. 3 C). As a 54 Series component, it utilizes a liquid filled sensor that provides consistent repeatability