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and shaft dimensions
including air handlers and furnace blower assemblies
How does the self-cleaning probe function
Rated for up to 30 Amps at 277V AC
United Electric J21K-254-1520 Pressure Switch 323055-751 and shaft dimensionsDesigned for mission critical chiller and compressor oversight, the United Electric J21K 254 1520 is a heavy duty differential pressure switch engineered to detect pressure variations between two distinct sources. Featuring a 0 90 PSI adjustable range (psid), this unit utilizes high sensitivity phosphor bronze bellows to monitor filter status and verify proof of flow in demanding HVACR environments. The 1520 option integrates a specialized adjustable