H3A-1SL

H3A-1SL is a series H3 explosion-proof differential pressure switch. It is a heavy duty, industrial unit with a unique new design that provides sensitivity to differential pressures as low as 10inches of water (254mm w.c.), yet handles total pressure of 1500psi (103bar). The Series H3 utilizes a rotary motion transfer shaft that prevents a change in total pressure from causing a set point shift. Typical applications include water flow proving with an orifice plate, differential pressure across chiller and liquid filter status.

• Explosion-proof differential pressure switch
• Aluminium chamber with nitrile diaphragm
• Adjustable operating range from 10-180" w.c. (2.48-44.78kPa)
• SPDT snap action switch rated 5A at 125/250VAC, 30VDC
• 18 AWG x 18 inch lead wires electrical connection
• Rotary motion design prevents set point shifts
• Explosion-proof housing for use in applications where protection of process and personnel is needed
• 3/4˝ female NPT conduit connection
• 1/8˝ female NPT process connection
• Vertical mounting orientation and ATEX, CE, CSA, UL compliance