9013FSG2J24M1 is a Pumptrol series, standard duty, diaphragm type pressure switch with manual cut-out lever and 40-60 psi factory pressure setting (w/ adjustable cut-out & cut-in pressure and adjustable pressure differential).
This model is a variant of the very popular 9013FSG2J24 switch, but with a cut-out lever, which can be used to turn the pump off manually for maintenance, repairs, emergency, etc. Upon returning the lever to the normal position, the switch will continue to operate as a common pressure switch.
This pressure switch is suitable for a wide range of applications, including electric water pumps (deep well submersible, jet well non-submersible, etc.), compressors, agricultural & irrigation water systems, injection moulders & others.
When used with deep well submersible pumps (such as Grundfos SQ/SQE & others), the switch is installed in combination with a well tank (Well-X-Trol or similar), well tank tee and other components - pressure relief valve, pressure gauge, etc. On jet well pumps, the switch is commonly installed directly at the pump.
Note:Due to rebranding at Schneider Electric, Square D is now Telemecanique. The product itself is unchanged.