5-inch diameter motors with 9" and 10

Common failure indicators include the outdoor unit failing to start

this model requires a minimum pressure differential (usually 5 PSI) to shift the internal diaphragm and function correctly

allowing it to safely replace 370V capacitors for increased durability

this twinning relay kit ensures balanced airflow and consistent load sharing across dual furnace installations or air conditioning systems

Siemens Industrial Controls HF362 Disconnect 320788-703 5-inch diameter motors with 9"The Siemens HF362 is a cornerstone in heavy duty circuit protection, serving as a 60A 3 pole fusible safety switch designed for demanding industrial and commercial HVACR applications. Engineered for 600V AC DC operational environments, this unit provides a reliable heavy duty disconnect for motors, heat pumps, and high voltage power distribution systems. The NEMA 1 enclosure is optimized for indoor installations, featuring a robust steel construction