---
product_id: 17113502
title: "Telemecanique Sensors 9013FSG2J21M4 Air-Pump Pressure Switch, NEMA 1, 30-50 psi Pressure Setting, 20-65 psi Cut-Out, 15-30 psi Adjustable Differential, Low-Pressure Cut-Off"
brand: "square d"
price: "€ 91.88"
currency: EUR
in_stock: false
url: https://www.desertcart.gr/products/17113502-telemecanique-sensors-9013fsg2j21m4-air-pump-pressure-switch-nema-1-30
store_origin: GR
region: Greece
---

# 15-30 psi adjustable differential 30-50 psi pressure setting NEMA 1 & UL/CSA certified durability Telemecanique Sensors 9013FSG2J21M4 Air-Pump Pressure Switch, NEMA 1, 30-50 psi Pressure Setting, 20-65 psi Cut-Out, 15-30 psi Adjustable Differential, Low-Pressure Cut-Off

**Brand:** square d
**Price:** € 91.88
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Elevate your pump control game with precision and protection!

## Quick Answers

- **What is this?** Telemecanique Sensors 9013FSG2J21M4 Air-Pump Pressure Switch, NEMA 1, 30-50 psi Pressure Setting, 20-65 psi Cut-Out, 15-30 psi Adjustable Differential, Low-Pressure Cut-Off by square d
- **How much does it cost?** € 91.88 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/17113502-telemecanique-sensors-9013fsg2j21m4-air-pump-pressure-switch-nema-1-30)

## Best For

- square d enthusiasts

## Why This Product

- Trusted square d brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Customizable Differential:** Adjust the 15-30 psi differential to perfectly match your operational needs and avoid unnecessary cycling.
- • **Certified Safety & Quality:** UL Listed and CSA Certified for peace of mind in professional and residential applications.
- • **Precision Pressure Control:** Fine-tune your pump activation with a 30-50 psi pressure range for optimal system performance.
- • **Reliable Low-Pressure Cut-Off:** Automatic pump shutoff approximately 10 psi below cut-in protects your system from damage and downtime.
- • **Robust Industrial-Grade Build:** NEMA 1 enclosure with IP20 rating ensures dependable protection in standard environments.

## Overview

The Telemecanique Sensors 9013FSG2J21M4 is a UL and CSA certified electromechanical pressure switch designed for water or air pumps up to 1.5 hp. Featuring a 30-50 psi pressure setting, adjustable 15-30 psi differential, and a low-pressure cut-off that activates about 10 psi below cut-in, it ensures precise pump control and system safety. Housed in a durable NEMA 1 enclosure with IP20 protection, this switch offers reliable performance for professional-grade applications.

## Description

Telemecanique Sensors 9013FSG2J21M4 Air-Pump Pressure Switch, NEMA 1, 30-50 psi Pressure Setting, 20-65 psi Cut-Out, 15-30 psi Adjustable Differential, Low-Pressure Cut-Off

## Features

- Pressure Switch - Water Or Air
- Pressure Switch Used To Control Electrically Driven Motors
- Diaphragm Actuated
- Low Pressure Cut Off - Operates Approximately 10 Psi Below Cut-In

## Product Details

- **Operation Mode:** automatic
- **Current Rating:** 60 Amps
- **Operating Voltage:** 1E+2 Volts
- **Contact Type:** Normally Open
- **Connector Type:** Clamp
- **Brand:** Square D
- **Terminal:** Screw
- **Item dimensions L x W x H:** 4 x 4 x 4 inches
- **Circuit Type:** 1-way
- **Actuator Type:** Diaphragm

## Images

![Telemecanique Sensors 9013FSG2J21M4 Air-Pump Pressure Switch, NEMA 1, 30-50 psi Pressure Setting, 20-65 psi Cut-Out, 15-30 psi Adjustable Differential, Low-Pressure Cut-Off - Image 1](https://m.media-amazon.com/images/I/71BlPuJxuoL.jpg)

## Questions & Answers

**Q: Can I use a high-pressure (~300 psi?) flexible line to relocate the switch about 6 feet from the water line?**
A: This question came in with 9013FSG2J21M4-- These are for house water pressure, the kind I got (I suppose they work ok on low air inlet pressure, just not specs). You should look into a high-pressure water switch. This 9013 series is not rated at 300psi. But, you would still need to solidly support a switch, so it doesn't move if the line pressure changes cause the flexible part... to flex (thick copper wires would eventually fatigue). I initially mis-read the 300 as 30.

**Q: Says operating range 240V so not for 120V? Or is that up to 240V? I have a 1/2HP 115/230 single phase pump wired to a 20 amp CB. Will this work?**
A: The FSG series of switches are rated at 1.5hp @120V and 2hp @ 240V single phase power (regular juice).  Interesting they don't have a current specification, possibly allowing for the surge each time the motor starts.

**Q: need a pressure switch for 12 volt water pump?**
A: 9013FSG2J21M4 -- The contacts are not rated for a lot of current/power.  You might need on his to activate a relay that can handle the needed DC current. 
 (1.5hp =9A /120AC , 2HP/220VAC and 1/4HP DC  DC (=15.6A/12DC, they don't list the amperage ratings for the contacts, only the HP and no voltage specified on DC ) Yes, it says 0.25HP for DC !  15A DC is maybe too much for a contact rated at around 9A AC.  This would run a small sprayer pump, but there are probably better solutions   The FYG/FYW versions are rated for 1/2HP DC, a little better and the  specs are a little better on both  for 3 phase.

**Q: Is the cut in / cut out pressure adjustable?**
A: Yes, it is adjustable.

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-23*