This Water Source Well System Low Cut-Off Pressure Switch signals the pump to start when the water system drops to 30 PSI (factory set) and stops at 50 PSI (factory set). This well pump pressure switch is to be used with submersible well or jet pumps. It can be wired 115 volt or 230 volt. This pump pressure switch must be used in conjunction with a well pressure tank. The air pressure in the well tank, when empty of all water, must be set to 28 PSI, or the switch will not operate properly. This switch is equipped with a low-level cut-off arm that automatically shuts off a well pump when there is a dramatic decrease in pressure, such as a leak in the discharge pipes or a faulty pressure tank.

• Signals the pump to start when the water system drops to 30 PSI (factory set) and stops at 50 PSI (factory set)
• Can be wired 115 volt or 230 volt
• Well pump pressure switch is equipped with a low-level cut-off arm that automatically shuts off a well pump when there is a dramatic decrease in pressure, such as a leak in the discharge pipes or a faulty pressure tank
• When first running the pump after installing the pump pressure switch, hold the lever in the start position until pressure reaches 30 PSI
• For use with submersible well or jet pumps (that can create up to 50 pounds of pressure)
• Motor wires are connected to the 2 middle posts (color does not matter); Breaker box wires are connected to 2 outside posts (color does not matter)
• 2-spring design allows for adjustment of cut-in and cut-out pressure settings
• Adjustments to springs should only be made by users with good knowledge of well systems