9013FSG2 PRESSURE SWITCH TELEMECHANIQUE
9013FSG2 PRESSURE SWITCH TELEMECHANIQUE – Heavy-Duty Industrial Water Pump Pressure Controller
The 9013FSG2 PRESSURE SWITCH TELEMECHANIQUE (manufactured under the Pumptrol® brand by Telemecanique Sensors / Schneider Electric) is a standard electromechanical diaphragm pressure switch designed for direct regulation of electrically driven water pumps and industrial fluid power systems. Engineered to control fresh water supply systems automatically between preset cut-in and cut-out pressure thresholds, this 2-pole switch protects well pumps, booster pumps, and irrigation installations against uncontrolled over-pressurization.
The unit features an adjustable differential scale mechanism alongside drift-proof cut-in and cut-out settings to maintain pressure accuracy over long operating lifespans. Its internal 2 NC (Double Pole Single Throw – Double Break) snap-action contacts directly break motor power circuits without requiring external contactors for standard horsepower ratings.
As illustrated in the product image, the device is housed in a rugged gray Noryl thermoplastic cover featuring the classic Square D / Pumptrol logo, complete with a top locking nut, side wiring conduit knockout entries, and an internal rating warning label.
Key Features of the 9013FSG2 PRESSURE SWITCH TELEMECHANIQUE
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Drift-Proof Pressure Regulation: Features independent internal screw adjustments for cut-in and cut-out points, keeping differential settings stable across thousands of switching cycles.
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High Motor Switching Capacity: Capable of directly switching single-phase electric motors up to 1.5 HP at 115V AC or 2 HP at 230V AC (3 HP on 3-phase systems).
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Durable Diaphragm Mechanism: Built with a Nitrile (Buna-N) rubber diaphragm and zinc-plated steel flange, providing chemical resistance and fluid compatibility with fresh water.
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2-Pole Snap-Action Contacts: Employs double-break DPST Form YY contacts (2 NC) for clean arc quenching and reliable power interruption.
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Standard 1/4-inch Connection: Equipped with a standard 1/4-inch NPSF internal fluid connection port for quick installation onto pressure tanks and pipe tees.
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NEMA 1 / IP20 Protective Housing: Polypropylene/Noryl enclosure shields internal terminal connections against dust and accidental contact.
Common Applications and Industrial Usage
The reliability and straightforward wiring design of the 9013FSG2 PRESSURE SWITCH TELEMECHANIQUE make it a preferred control device across various liquid management setups:
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Residential & Agricultural Well Pumps: Automatically turns submersible or jet pumps ON and OFF to maintain house line pressure within standard ranges (e.g., 20–40 PSI or 30–50 PSI).
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Commercial Booster Pump Systems: Regulates municipal water pressure booster skids in high-rise buildings and commercial complexes.
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Lawn & Crop Irrigation Systems: Controls surface supply pumps connected to pressure accumulator tanks to ensure constant flow for irrigation lines.
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Industrial Fluid Supply Networks: Serves as a primary pressure monitor in HVAC cooling towers, washdown systems, and general water delivery infrastructure.
Technical Specifications
The core electrical, mechanical, and operational parameters for the 9013FSG2 PRESSURE SWITCH TELEMECHANIQUE are detailed below:
| Parameter Specification | Technical Details & Operational Values |
| Component Classification | Electromechanical Water Pump Pressure Switch |
| Primary Target Keyword | 9013FSG2 PRESSURE SWITCH TELEMECHANIQUE |
| Manufacturer / Family | Telemecanique Sensors (Schneider Electric) / Pumptrol 9013FS |
| Model Number | 9013FSG2 |
| Adjustable Range (Rising Pressure) | 137.9 to 448.2 kPa (20 to 65 PSI) |
| Approximate Adjustable Differential | 103.4 to 206.8 kPa (15 to 30 PSI) |
| Destruction / Max Pressure | 1516.8 kPa (220 PSI) |
| Fluid Connection Type | 0.25 inch NPSF Internal (1/4 Female Thread) |
| Contacts Configuration | 2 NC (Double Pole Single Throw – Double Break, Form YY) |
| Motor Horsepower Ratings | 1.5 HP @ 115V AC (1-Ph) / 2 HP @ 230V AC (1-Ph) / 3 HP @ 230V AC (3-Ph) |
| Rated Insulation Voltage (U_i) | 575V AC conforming to UL 508 |
| Materials in Contact with Fluid | Zinc-plated steel flange, Nitrile (Buna-N) rubber diaphragm |
| Operating Temperature Range | -30°C to +70°C (Fluid: 0°C to +70°C) |
| Dimensions (W x H x D) | 70.6 mm x 71.1 mm x 95.5 mm |
| Ingress Rating / Enclosure | NEMA 1 / IP20 |
Operating Guidelines and Best Practices
SAFETY NOTICE: Isolate all incoming power sources prior to removing the front cover or making internal terminal adjustments.
Adjusting Pressure Settings: Turn the main range nut clockwise to raise both cut-in and cut-out pressures simultaneously. Turn the smaller differential nut clockwise to raise the cut-out pressure while keeping cut-in constant.
Pulsation Dampening: In systems prone to water hammer or severe pressure spikes, install a nylon pulsation plug in the 1/4 inch inlet fitting to protect the rubber diaphragm from fatigue.
To review official international standards for industrial control equipment and pressure switch testing safety, consult the official UL 508 Industrial Control Equipment Directory.
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