
J400K-559 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $99.00 | Condition is New – Open box, Unused UE J400K-559/1520 Differential Pressure Switch: 10 to 100 PSID United, shipping cost = $24.50 | 100.0% |
![]() | $239.99 | Condition is New – Open box, United Electric J400K 559 9990 Differential Pressure Switch Adjustable Deadband, shipping cost = $26.73 | 99.9% |
![]() | $299.00 | Condition is New – Open box, UNITED ELECTRIC J400k 559-9990 PRESSURE SWITCH, FREE SHIPPING | 100.0% |
![]() | $555.75 | Condition is New – Open box, Ue United Electric J400K-559 Differential Pressure Switch 480v-ac 10-100psi, FREE SHIPPING | ![]() |
![]() | $566.00 | Condition is New – Open box, UNITED ELECTRIC J400K-559-9990 480VAC 15A 0-100PSI NSNP, FREE SHIPPING | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $99.99 | Condition is Used, USED United Electric J400K 559 Differential Pressure Switch 0 TO 100 PSI , FREE SHIPPING | 99.2% |
![]() | $306.00 | Condition is Used, UNITED ELECTRIC / Johnson Controls J400K-559-9990 480VAC 15A 0-100PSI. Used, shipping cost = $11.16 | 100.0% |
![]() | $499.44 | Condition is Used, United Electric Controls Co J400K-559 Differential Pressure Switch, FREE SHIPPING | 99.9% |



The United Electric J400K-559 Differential Pressure Switch is a high-quality, reliable pressure sensing device designed for various industrial applications. This switch operates on the principle of differential pressure, making it ideal for monitoring the pressure difference between two points in a system.
The J400K-559 is a 2/2-way, normally open (NO) switch, which means it is in the open position when no differential pressure is detected. When the specified differential pressure is reached, the switch closes, providing a signal to the controlling system. The switch is rated for a maximum differential pressure of 559 psi (3.88 bar) and a maximum working pressure of 290 psi (20 bar) on the high side and 290 psi (20 bar) on the low side.
The switch is constructed from corrosion-resistant materials, including 316L stainless steel and PTFE diaphragms, ensuring long-term durability and reliability in harsh environments. It also features a hermetically sealed design, which protects internal components from contamination and damage.
The J400K-559 Differential Pressure Switch is available in various electrical configurations, including 120VAC, 24VAC, and 24VDC, and can be customized to meet specific application requirements. It is also UL listed and CE marked, ensuring compliance with international safety standards.
In conclusion, the United Electric J400K-559 Differential Pressure Switch is a powerful, reliable, and versatile pressure sensing device that can be used in a wide range of industrial applications. Its durability, reliability, and customization options make it an excellent choice for monitoring and controlling pressure in various industrial processes.
Pros of buying a United Electric J400K-559 Differential Pressure Switch:1. Reliability: United Electric is a reputable brand known for manufacturing high-quality pressure switches. The J400K-559 is no exception, with its robust design and reliable performance.
2. Versatility: This differential pressure switch is suitable for a wide range of applications, including water treatment, HVAC, and process control. It can handle pressures up to 559 psig and temperatures between -40 F and 250 F.
3. Easy Installation: The switch comes with a clear and easy-to-follow installation manual, making it simple for both professionals and DIY enthusiasts to install.
4. Adjustable Set Points: The J400K-559 allows for adjustable set points, enabling users to customize the switch to meet their specific requirements.
5. Durable Materials: The switch is made with corrosion-resistant materials, ensuring longevity and reliability even in harsh environments.
Cons of buying a United Electric J400K-559 Differential Pressure Switch:1. Price: Compared to some other differential pressure switches, the J400K-559 may be more expensive. This could be a potential drawback for budget-conscious consumers.
2. Limited Range of Sensitivity: While the switch offers adjustable set points, its sensitivity range may not suit all applications. Users may need to consider other options if they require a more sensitive switch.
3. Limited Availability: United Electric's products may not be as widely available as those of larger manufacturers, which could limit options for buyers in certain locations.
Ending Conclusion:The United Electric J400K-559 Differential Pressure Switch offers reliable performance, versatility, and easy installation, making it an excellent choice for many applications. Although it may be more expensive and have a limited range of sensitivity, the switch's durability and robust design make it a worthwhile investment for those seeking a high-quality differential pressure switch.
Recommendation:If you require a high-quality differential pressure switch with a wide range of applications and easy installation, the United Electric J400K-559 is an excellent choice. However, it is essential to consider the switch's price and sensitivity range to determine if it meets your specific requirements. In cases where a more budget-friendly or sensitive switch is needed, alternative options may be more suitable.
Details:
Whetted materials: aluminum, Teflon, buns n. Operating range: 10 to 100 paid, 0.7 6.9 bar. Set 100 psi rising. Mara industrial id: 61, United Electric controls co J400K-559 differential pressure switch - used, pn: J400K-559, j400k559, j400k559.
Options: m201 qc1.
specifications indusswitch:
- brand: United Electric Controls
- mpn: J400k-559
- part type: Pressure Switch Control
offer indusswitch:
- started: october 1, 2024
- prices: $99.00–$566.00
- item condition:
- New – Open box
- Used
- options: ship-to-home
- in stock #: 5
- availability: in stock
- sold #: 28
seller indusswitch:
- # reviews: 51583
- rating: 99.7%
- city: port sanilac, michigan
shipping indusswitch:
- service: usps priority mail, ups ground, ups 2nd day air, ups next day air
- transit: 3-7 days
- carrier: usps, ups
- class: expedited, standard, one-day
- type: calculated
payments indusswitch:
- other
- credit card: mastercard
- wallet: paypal
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Pressure Switches
returns indusswitch:
- paid by: buyer
- method: money back
- policy: returns accepted
- time: 30 days
Also Purchased:
- E100-13545: CONTROL SWITCH, United Electric Controls
- J40-9620-9439: SWITCH, United Electric
- J403-612: PRESSURE CONTROL SWITCH BAR BOX, United Electric Controls
- MROS100131204-J41-11498: , Industrial Mro
- J120-361: PRESSURE CONTROL SWITCH, United Electric Controls
- J6-222: PRESSURE SWITCH, United Electric
- JK120K-37: PRESSURE CONTROL SWITCH, United Electric Controls
- H122-144: PRESSURE SWITCH, United Electric
- H100-190-95303: PRESSURE CONTROL, United Electric Controls
- 24-031: PRESSURE CONTROL SWITCH, United Electric Controls
- J41-9833: PRESSURE SWITCH, United Electric








