making it the standard for larger commercial steam boilers where high-volume relief (lbs/hr) is critical for system safety

reducing laboratory hours and labor costs during preventative maintenance or emergency repairs

this specific model is a 120V primary transformer

Contractors will appreciate the selectable analog outputs (4-20mA

With a 3/8" NPT connection and a flow coefficient of 1

Hubbell Industrial Controls 69HAU3B Pressure Switch 321702-401 making it the standard forThe Hubbell Industrial Controls 69HAU3B Pressure Switch is a heavy duty single stage air compressor switch designed to manage system cycling with precision in industrial environments. Engineered with a NEMA 1 enclosure, this 2 pole pressure switch is rated for a 60 PSI factory setting, providing a reliable 15 PSI to 25 PSI differential range. The 69HAU3B features a 1 4" NPSC internal connection and is capable of handling up to 2 HP at 120V or 3 HP at