
300-1-2-3 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $43.48 | Top Pick! Condition is New – Open box, NOSHOK 300 1 2 3/40 8 / 300123408 (NEW IN BOX), shipping cost = $12.90 | 99.7% |
![]() | $49.99 | Condition is New – Open box, NOSHOK 300-1-2-3/30-8 Pressure Switch 1/4 NPT 3-30 PSI Made In Germany , shipping cost = $9.14 | 100.0% |
![]() | $72.89 | Condition is New – Open box, NOSHOK 300-1-2-15/200-1 NEW, shipping cost = $14.58 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $159.47 | Condition is New, Noshok 300-1-2-3/30-8 Mechanical Pressure Switch 3-30psi 1/4' NPT Male,--Ne, shipping cost = $14.00 | 99.9% |

The Noshok 300-1-2-3 pressure switch is a versatile and reliable instrument designed for use in various industrial applications. This pneumatic pressure switch comes with a model number 300-1-2-3 and a 1/4 NPT thread connection. It is capable of switching between three different pressure ranges: 3 to 8 psi (pounds per square inch).
The switch body is made of brass, a durable and corrosion-resistant material, ensuring long-lasting performance even in challenging environments. It features a diaphragm actuator that operates with a 1/4 NPT air inlet connection. The actuator is designed to be sensitive to subtle pressure changes, allowing for precise switching.
The Noshok 300-1-2-3 pressure switch comes with three available switch contacts: normally open (NO), normally closed (NC), and changeover (NO-NC or NC-NO). This flexibility allows users to configure the switch to meet their specific application requirements.
The switch's operating temperature range is from -20 F to 140 F (-29 C to 60 C), making it suitable for use in a wide range of industrial applications. The switch also features a 150:1 turn ratio, ensuring accurate and consistent switching.
The Noshok 300-1-2-3 pressure switch is easy to install and maintain. It is equipped with a test port that allows users to verify the switch's functionality without the need for disassembly. The switch also comes with an adjustable deadband feature, allowing users to fine-tune the pressure sensitivity to their specific application.
Overall, the Noshok 300-1-2-3 pressure switch is a high-quality and versatile instrument designed for use in various industrial applications where precise pressure switching is required. Its robust construction, flexibility in switch contacts, and ease of use make it an excellent choice for a wide range of industrial applications.
Noshok 300-1-2-3 Pressure Switch: A Detailed Analysis
The Noshok 300-1-2-3 pressure switch is a 1/4 NPT, 3-30 psi, solenoid operated switch, commonly used in various industrial applications. In this analysis, we will discuss the key features, advantages, and disadvantages of this pressure switch to help you make an informed decision.
Features:1. 1/4 NPT thread connection
2. Operating pressure range of 3-30 psi
3. Solenoid operated
4. Normally open contact
5. Temperature range of -40 F to 257 F
6. Available in various voltages (115VAC, 230VAC, 12VDC, 24VDC)
Advantages:1. Versatile application: The Noshok 300-1-2-3 pressure switch is suitable for a wide range of applications due to its adjustable pressure setting and availability in various voltage options.
2. Rugged design: The switch is built to withstand harsh environments and can operate efficiently in extreme temperatures.
3. Reliable performance: Noshok is a reputable brand known for manufacturing high-quality pressure switches, ensuring consistent and accurate performance.
Disadvantages:1. Complex installation: Compared to other pressure switches with simpler installation processes, the Noshok 300-1-2-3 may require additional time and resources for setup.
2. Limited pressure range: With a maximum operating pressure of 30 psi, it may not be suitable for applications requiring higher pressure settings.
Conclusion:The Noshok 300-1-2-3 pressure switch is a reliable and versatile option for various industrial applications. Its rugged design, temperature resistance, and availability in various voltage options make it a popular choice among engineers and technicians. However, its complex installation process and limited pressure range may be disadvantages for some users. Ultimately, the decision to purchase this pressure switch depends on the specific requirements of your application.
Recommendation:If you are looking for a pressure switch with a wide pressure range, simple installation, or a lower price point, there are other options available in the market. However, if you value the reliability, versatility, and ruggedness of the Noshok 300-1-2-3, it is an excellent choice for your industrial application.
Details:
Noshok 300-1-2-3/30-8 mechanical pressure switch. Pressure range: 3 30 psi. Brand: Noshok. Type: mechanical pressure switch.
Please review all photos for details. High quality industrial pressure switch manufactured by Noshok in germany. Maximum pressure: 870 psi. Unit appears unused but shows minor cosmetic marks on the metal surface from storage.
Suitable for hydraulic, pneumatic and industrial pressure monitoring systems. Box has light wear from storage. Made in germany. Comes with original box, manual and adjustment hex key.
Open box / unused condition. Specifications. Model: 300-1-2-3/30-8.
specifications indusswitch:
- brand: Noshok
- mpn: 300-1-2-3
- model: 300-1-2-3/30-8
- fuse type: Switch
- type: Mechanical Pressure Switch
shipping indusswitch:
- service: usps ground advantage
- type: calculated
- carrier: usps
- class: standard
- transit: 4-10 days
seller indusswitch:
- rating: 100.0%
- # reviews: 558
- city: carmichael, california
payments indusswitch:
- credit card: visa
- wallet: apple-pay
- other
offer indusswitch:
- sold #: 10
- availability: in stock
- best offers: true
- options: ship-to-home
- in stock #: 4
- prices: $43.48–$159.47
- item condition:
- New – Open box
- New
- started: march 16, 2026
returns indusswitch:
- policy: no returns
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Pressure Switches
Also Purchased:
- 100.30-45.1.1.2.2: PRESSURE TRANSMITTER, Noshok



