TECHNICAL DATA SHEET
The SQUARE D pressure switch is one of the world's best-selling and most reliable. It automatically controls pressure energy levels by adjusting the electric pump's power supply. It activates and deactivates the liquid pumping system as needed. All FSG 2 pressure switches are pre-set to standard contact closing and opening pressures, but can be adjusted to different pressures using their adjustment device.
SQUARE D FSG-2 Mechanical Pressure Switch for Electric Pump Control
SQUARE D FSG-2 PRESSURE SWITCH

Pressure switches are used in almost all systems involving pressurized liquids. They automatically control pressure energy levels by adjusting the power supply to the electric pump. In practice, they turn the electric pump on and off based on pressure. They are pre-set to standard contact closing and opening pressures, but can be adjusted to different pressures using their adjustment device.
Double-pole switch, for nominal voltage 230 V
Adjustable intervention pressure
Minimum intervention pressure: 1.0 – 2.1 bar
Factory setting pressure: 1.4 – 2.8 bar
Adjustment range as pressure increases: 1.4 – 4.6
Connection: ¼” female
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