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๐ง Keep your water pressure flawless โ because waiting is so last decade!
The Telemecanique Sensors FSG2J21CP is a high-precision 30-50 PSI Pumptrol water pressure switch designed for jet, submersible, and reciprocating pumps. Featuring a grey cover and standard-action contacts that open on rising pressure, it offers a compact 2.78" x 3.76" x 2.8" form factor and easy drop-in replacement. Backed by Schneider Electricโs trusted quality and a 4.6-star rating from over 400 users, itโs the smart, cost-effective choice for maintaining consistent water pressure without professional help.


| ASIN | B000BQOXV0 |
| Best Sellers Rank | #512,695 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #853 in Water Pump Accessories |
| Brand | Schneider Electric |
| Brand Name | Schneider Electric |
| Color | Grey Cover |
| Customer Reviews | 4.6 out of 5 stars 432 Reviews |
| Global Trade Identification Number | 00047569807855 |
| Included Components | Square D by Schneider Electric FSG2J21CP 30-50 PSI Pumptrol Water Pressure Switch |
| Item Dimensions L x W x H | 2.78"L x 3.76"W x 2.8"H |
| Item Type Name | Square D by Schneider Electric FSG2J21CP 30-50 PSI Pumptrol Water Pressure Switch |
| Item Weight | 13.12 ounces |
| Manufacturer | Telemecanique Sensors |
| Manufacturer Part Number | FSG2J21 |
| Material | - Select - |
| Material Type | - Select - |
| Model Number | FSG2J21CP |
| Power Source | Corded Electric |
| Product Dimensions | 2.78"L x 3.76"W x 2.8"H |
| Product Style | Submersible |
| Specific Uses For Product | Water Pump Pressure switch |
| Style | Submersible |
| UPC | 602460045043 880828451327 653829099399 047569807855 047569115394 758710428859 |
| Unit Count | 1.0 Count |
N**A
Switch perfect
Wonderful product. I put off many months fixing problem. Reviewed what could be problem with intermittent water pressure. Constantly bled line. Illuminated several reasons for problem. Didn't want to call plumber for a minor fix. Followed thru with many reasons for no water pressure. Finally trusted myself that I could replace water pump pressure switch. Got info for older switch. Watched how to install. Easy to install. Product for perfect. Had older switch seventeen and a half years. Ordered and received in seem like two days. Working great. Have water pressure. It could have cost me lots of money for a plumber. Sorry plumbers but those that can take the time to fix it yourself should try. Will order again along with other products they have. Directions are small and need to be clearer but you can pay attention how you remove old one. Make sure all.electric sit off and we'll pump. Could have purchased in store but cheaper from Amazon because had to be shipped to store from somewhere else. This was easier faster cheaper.
H**D
Square D quality
I replaced the 50 year old Square D equivalent with the blue cover. The old switch worked, but after 50 years, figured it was time to do preventive maintenance instead of being in a pickle when it eventually fails. This was a drop-in replacement, internals were identical, and the wiring was identical. Since I was replacing this just for preventive maintenance, I took the opportunity to also replace the nipple/riser as well as the pressure gauge. Considering the price is very reasonable, I came back and purchased a spare, just to keep on the shelf.
V**E
Needed adjustment, but works just fine.
This is the second one I've purchased. The original one on the system came with the well and had rusted out. When I installed the new one the calibration was perfect but unfortunately was physically damaged due to no fault of the device shortly after. When I finally got around to installing this second replacement it worked perfectly out of the box but unlike the first one needed to be adjusted to reach the 30-50 specification (all other pump and tank hardware was tested to make sure that this was the cause and not a false reading.) Even so, I find these trustworthy and would buy again.
J**A
Works good
Works good, price is reasonable. You can get these factory preset for different pressure levels, so check around to be sure you get the right one. This is what I consider to be Square D's middle of the road electric water pressure switch. I belive they make a cheaper one in plastic clamshell packaging, and they also make a heavy duty version that is not only rated for higher amperage, but the top seals much tighter, to keep bugs and spiders out. If you are just wanting a regular pressure switch, at a decent price, this is it. Comes in a cardboard box that sits nicely on the shelf. Identical to the unit I replaced it with that lasted well over 10 years.
J**F
good stuff
pressure switch
G**P
Quality for a reasonable price . . .
Quality pressure switch at a reasonable price.
C**T
Did the job and was a great price
Nothing puts fear into the heart of a homeowner on a well when you have no water! In our case we had intermittent interruptions when the switch would not activate, and tapping it made it work. BUT when the pump control gets stuck ON and your system begins to leak, well, you gotta fix it. This unit took literally 10 minutes to install, easily and keeping the water flowing on a regular basis!
P**Z
difficult to adjust, works great once you find the right settings.
Used this for water booster pump supplying faucet and shower. I tried a number of inline pump control options, but the results were variable, and a headache to replace. I put this device off of a T coming off the pump. I'm very happy with the results, and though the pressure controls aren't intuitive, it does do what I want it to do! If I need to replace it in the future, it should be much easier to do. Finding the right fittings to connect to PVC required some creativity, though.
S**T
Square D is the Best
Worked like a charm. It raised our water pressure from 20-40 to 30-50. Don't settle for anything less than Square D.
R**Y
Good product and good price
In 2018 these switches in Australia averaged $43.00 INC gst, Since the mighty covid crap, there retail is between $140.00 and $200 which is Australian Greed, SO im happy to purchase these abroad, Thank You for being FAIR, much appreciated.
S**L
Square D has good water pressure switch
Good quality pressure switch.
H**D
great drop in replacement unit
perfect replacement unit for the pressure switch that failed. easy drop in replacement with no weird differences from the original unit. working well so far and that is what counts. future durability unknown but for the price it fits the bill
A**R
Pressure switch for water pump
Best price around. Fast delivery.
Trustpilot
1 day ago
3 weeks ago