E20 LOSS OF PRIME PRESSURE SWITCH |
Features |
• Three digitally adjustable set points
• Four-quadrant digital fine tuning
• Corrosion resistant construction
• Suitable for seawater use
• Directly controls pumps to 3.75kW
• Simple plug-in installation up to 2.2kW
• Single cable model with voltage free contacts for contactors
and other control circuit applications
• Automatic override on start up
• Loss of pressure warning light
• Indicator lights for all functions
• Tough reliable construction
• IP67 weatherproof housing
• 20Bar (300psi) rated
Description |
The E20 loss of prime pressure switch is a solid-state digital pressure switch specifically for the control and protection of domestic and industrial pressure pumps and air compressors.
Pressure switches normally have two set points, a low pressure cut in point and a high pressure cut out point. A pump under the control of such a switch operates between the two set points. If pressure is lost due to the pump running dry or to a burst pipe the pump will continue to run simply because the pressure switch remains on. In such a situation the pump will invariably sustain substantial damage due to being run dry. The E20 pressure switch addresses this problem by providing a third adjustable switch point that can be set below the normal operating range to turn the pump off, and prevent it being damaged if it runs dry.
Applications |
• Domestic water supply control
• Industrial pump control
• Seawater pressure system control
• Irrigation pump control
• Effluent system control
• Water treatment system control
• Washdown system control
• Pool and spa pump control
• Bore pump control
• Compressor control
• Pneumatic control
More Information |