Potter Amseco PS-40EX Explosion Proof Pressure Switch

The Potter PS40-EX Supervisory Pressure Actuated Switch is designed primarily to detect an increase and/or decrease from normal system pressure in automatic fire sprinkler systems located in hazardous locations classified as shown above. Typical applications are: Dry pipe systems, pre-action air/nitrogen supervision, pressure tanks, air supplies, and water supplies. The PS40-EX switch is factory set for 40 PSI (2,8 BAR) normal system pressure. The switch marked with the word LOW is set to operate at a pressure decrease of 10 PSI (7 BAR) at 30 PSI (2,1 BAR). The switch marked with the word HIGH is set to operate at a pressure increase of 10 PSI (7 BAR) at 50 PSI (3,5 BAR).

UPC: 785192007098
Also known as: PL-PS40EX, PS40EX

Technical Specifications: Dimensions: 152mm Dia. x 178mm H (6'" Dia. x 7'" H) Enclosure: Cast aluminum Pressure Connection: 1/2'" NPT male brass fitting Conduit Entrance: 1/2'" NPT female conduit opening. To maintain type '"d'" component protection use an Ex component conduit sealing device. Factory Setting: One switch operates on pressure decrease at: 206 kPA/2.1 BAR/30 PSI, One switch operates on pressure increase at: 344 kPA/3.5 BAR/50 PSI Pressure Range: 69 kPA/.69 BAR/10 PSI to 1207 kPA/12.07 BAR/175 PSI Maximum Differential (Approx.): 14 kPA/.14 BAR/2 PSI at 138 kPA/1.38 BAR/20 PSI, 34 kPA/.34 BAR/5 PSI at 1207 kPA/12.07 BAR/175 PSI Maximum Proof Pressure: 1724 kPA/17.24 BAR/250 PSI Switch Contacts: Two Sets of SPDT (Form C), 15.0 Amps at 125/250 VAC, 2.0 Amps at 30 VDC

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