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Potter PS25 Supervisory Pressure Switch with Two Sets SPDT Contacts(Obsolete product)

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Potter PS25 Series Supervisory Pressure Actuated Switches are designed primarily to detect an increase and/or decrease from normal system pressure in automatic fire sprinkler systems. Typical applications are air/nitrogen supervision in the dry pipe and pre-action systems, pressure tanks, air supplies, and water supplies. The PS25-2 has two switches. The Low switch is factory set to activate at approximately 18 psi (1,2 BAR) on a decrease in pressure. The High switch is factory set to activate at approximately 28 psi (1,9 BAR) on an increase in pressure. NFPA 72 requires a supervisory signal for both high and low pressure conditions.

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Product Code : fs10086 Brand: Potter Seller: Fireshop1001 Approved by : [woo_pro_badges_extended]

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Description

Potter PS25 Series Supervisory Pressure Actuated Switches are designed primarily to detect an increase and/or decrease from normal system pressure in automatic fire sprinkler systems. Typical applications are air/nitrogen supervision in the dry pipe and pre-action systems, pressure tanks, air supplies, and water supplies.
The PS25-2 has two switches. The Low switch is factory set to activate at approximately 18 psi (1,2 BAR) on a decrease in pressure. The High switch is factory set to activate at approximately 28 psi (1,9 BAR) on an increase in pressure. NFPA 72 requires a supervisory signal for both high and low pressure conditions. The PS25 is factory set for a normal air pressure of 23 psi. See section heading Adjustments and Testing if other than factory set point is required.

Features

Independent switch adjustment, no tools needed.
Non-corrosive pressure connection.
Separate isolated wiring chambers.
Two conduit / cable entrances
Solid metal enclosure.
Two switch model

Specifications

Product: Supervisory Pressure Switch
Brand: Potter
Dimensions 3.78(9,6cm)Wx3.20(8,1cm)Dx4.22(10,7cm)H
Enclosure: Cover - Die Cast, Finish - Red Powder Coat, Base - Die Cast, All parts have corrosion resistant finishes
Pressure Connection: Nylon 1/2 NPT male
Differential: Typical 1 lb. at 10 PSI (,07 at ,7 BAR), 4 lbs at 60 PSI (,28 at 4,1 BAR)
Pressure Range: 10-60 PSI (,7-4,1 BAR)
Maximum System Pressure: 300 PSI (20,68 BAR)
Temperature range: -40º F to 140ºF (-40ºC to 60ºC)
Contact Ratings: (2) SPDT (Form C) Switches, 10.1 Amps at 125/250 VAC, 2.0 Amps at 30 VDC
Factory Adjustment: PS25-2 operates on increase at 28 PSI (1,9 BAR) and on decrease at 18 PSI (1,2 BAR)
Conduit Entrances: Two knockouts for 1/2 conduit provided. Individual switch compartments and ground screw suitable for dissimilar voltages
Cover Tamper: Cover incorporates tamper resistant fastener that requires a special key for removal. One key is supplied with each device.
Service Use: NFPA 13, 13D, 13R, 72