
J21K-150 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $189.00 | Condition is New – Open box, UE J21K-150 UNITED ELECTRIC DIFFERENTIAL PRESSURE SWITCH, shipping cost = $27.26 | 100.0% |
![]() | $480.00 | Condition is New – Open box, NEW UNITED ELECTRIC J21K-150 DIFFERENTIAL PRESSURE SWITCH J21K150, shipping cost = $17.56 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $184.95 | Condition is New, J21K-150 Differential Pressure Switch United Electric Controls , FREE SHIPPING | 100.0% |
![]() | $813.93 | Condition is New, United Electric J21K-150 NEW 9538 DIFFERENTIAL PRESSURE SWITCH 480V 15A D525555, FREE SHIPPING | 98.6% |
![]() | $818.51 | Condition is New, United Electric J21K-150 Pressure Switch 0-40# NEMA 4 J21K-150, FREE SHIPPING | ![]() |
![]() | $909.99 | Condition is New, United Electric J21k-150 Pressure Switch, FREE SHIPPING | 99.8% |
![]() | $1062.33 | Condition is New, UNITED ELECTRIC J21K-150 Pressure Switch 62YD21, FREE SHIPPING | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $45.00 | Condition is Used, UNITED ELECTRIC BRASS PRESSURE SWITCH 40-180 PSI 15 AMP 480 VAC 0-40 PSID, shipping cost = $18.00 | ![]() |
![]() | $49.99 | Condition is Used, UNITED ELECTRONICS J21K-150 DIFFERENTIAL PRESSURE SWITC, shipping cost = $31.88 | 100.0% |
![]() | $75.00 | Condition is Used, UNITED ELECTRIC J21K 150 PRESSURE SWITCH RANGE 0-40 PSID (CX24D), shipping cost = $18.30 | 100.0% |
![]() | $219.00 | Condition is Used, United Electric J21K-150 Differential Pressure Switches 0-40PSID, FREE SHIPPING | 100.0% |
![]() | $399.00 | Condition is Used, United Electric Controls J21K-150 Pressure Switch., shipping cost = $15.00 | 100.0% |
![]() | $619.35 | Condition is Used, UNITED ELECTRIC J21K-150 / J21K150 (USED), shipping cost = $36.39 | 99.3% |

The United Electric J21K-150 UE Differential Pressure Switch is a reliable and accurate instrument designed for measuring and monitoring the differential pressure in various industrial applications. This switch, manufactured by United Electric, is specifically engineered to operate efficiently in environments where pressure differences need to be monitored to ensure system performance and prevent potential damages.
The J21K-150 UE Differential Pressure Switch is built to handle a maximum differential pressure of 40 psi (pounds per square inch). It is suitable for applications in industries such as water and wastewater treatment, HVAC systems, and process control, among others. The switch's rugged construction ensures its durability and resistance to harsh conditions, making it an excellent choice for demanding applications.
The switch consists of a diaphragm assembly that separates the process and reference chambers. The diaphragm is made of an elastomer material that flexes in response to differential pressure, which in turn actuates the switch mechanism. The switch has a contact rating of 150 mA at 125 VAC and is available in various configurations, including normally open (NO), normally closed (NC), and changeover (NO-NC) contacts.
The J21K-150 UE Differential Pressure Switch is easy to install and maintain. It features a clear and concise scale on the front bezel that indicates the switch's status, providing quick and easy monitoring of the differential pressure. The switch also comes with a gasket kit for easy field adjustment of the set pressure.
The switch's high-quality construction ensures accurate and consistent performance, even in demanding applications. It is designed to provide long-lasting service, reducing the need for frequent maintenance and downtime. The switch's compact design makes it easy to integrate into various systems, saving valuable installation space.
In conclusion, the United Electric J21K-150 UE Differential Pressure Switch is an essential tool for monitoring and controlling differential pressure in industrial applications. Its rugged construction, accurate performance, and ease of use make it a reliable and cost-effective solution for maintaining optimal system performance and preventing potential damages.
United Electric J21K-150 UE Differential Pressure Switch 40 PSID: A Comprehensive Analysis
The United Electric J21K-150 UE Differential Pressure Switch 40 PSID is a crucial component in various industrial applications, designed to ensure optimal system performance and prevent potential damage. This analysis aims to provide a comprehensive evaluation of the product, outlining its advantages and disadvantages.
Advantages:1. Reliability: The J21K-150 UE Differential Pressure Switch is known for its robust design and high reliability. It is suitable for harsh operating environments and can withstand extreme temperatures and pressures, ensuring consistent performance.
2. Versatility: This differential pressure switch can be used in various industries, including water treatment, HVAC, and oil and gas. Its wide operating pressure range and temperature tolerance make it a versatile solution for different applications.
3. Accuracy: The J21K-150 UE Differential Pressure Switch offers high accuracy, ensuring precise measurement of the differential pressure. This feature is essential in applications where maintaining optimal process conditions is crucial for product quality and safety.
4. Easy installation: The switch is easy to install and requires minimal wiring, saving time and resources during installation. Its compact size and lightweight design also make it an ideal choice for applications with limited space.
Disadvantages:1. Cost: The J21K-150 UE Differential Pressure Switch may be more expensive compared to other differential pressure switches in the market. However, its high reliability, accuracy, and versatility make it a worthwhile investment for industrial applications.
2. Limited customization: The switch comes with standard settings and may not offer extensive customization options. Users may need to consider additional accessories or modifications to meet specific application requirements.
3. Limited pressure range: Although the J21K-150 UE Differential Pressure Switch has a wide operating pressure range, it may not be suitable for applications requiring extremely high or low pressure differentials.
Conclusion:The United Electric J21K-150 UE Differential Pressure Switch 40 PSID is a reliable, versatile, and accurate solution for various industrial applications. Its robust design, ease of installation, and wide operating range make it an ideal choice for harsh operating environments. Although it may be more expensive compared to other switches, its high performance and durability make it a worthwhile investment.
Recommendation:If you are looking for a reliable, accurate, and versatile differential pressure switch for your industrial application, the United Electric J21K-150 UE Differential Pressure Switch 40 PSID is an excellent choice. Its high-quality design and extensive operating range make it a valuable asset in various industries, ensuring optimal system performance and preventing potential damage. While it may come with a higher price tag, the long-term benefits and peace of mind it offers make it an investment worth considering.
Details:
New in box fast shipping.
specifications indusswitch:
- brand: United Electric Controls
- mpn: J21k-150
- mounting style: Unit
- current type: Ac
- type: Differential Switch
- termination type: Power
- item height: 4 In
- color: Gray
- fuse type: Switch
returns indusswitch:
- policy: no returns
shipping indusswitch:
- carrier: usps
- type: fixed
- class: expedited
- transit: 5-12 days
- service: usps priority mail
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Pressure Switches
seller indusswitch:
- city: tampa, florida
- rating: 100.0%
- # reviews: 415
offer indusswitch:
- prices: $45.00–$1062.33
- item condition:
- New – Open box
- New
- Used
- started: february 22, 2025
- options: ship-to-home
- availability: in stock
- sold #: 22
- in stock #: 5
payments indusswitch:
- other
- wallet: paypal
- credit card: visa
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