NUMATICS 2JSA4 Solenoid Valve 120VAC 60 0.45

( Brand: Numatics ), ( Manufacturer Part Number: 2JSA4 ), ( Part Type: Valve Solenoid ), ( Valve Operation: Solenoid ), ( Country Of Origin: United States )

Review NUMATICS Solenoid Valve 120vac 60 Hz 0.45 Amps

The **Numatics 2JSA4** is a high-performance, direct-acting solenoid valve designed for precise control in industrial automation and pneumatic applications, delivering reliable operation in demanding environments. This compact yet robust valve operates on a **120V AC (60Hz)** power supply, making it ideal for standard North American electrical systems, while its **0.45-inch (11.43 mm) port size** ensures efficient airflow for moderate to high-pressure pneumatic systems. Engineered with Numatics signature quality, the 2JSA4 features a **normally closed (NC) pilot-operated design**, meaning the valve remains sealed until activated by an electrical signal, minimizing energy consumption and preventing unintended air release. Its **direct-acting mechanism** eliminates the need for external pilot air, simplifying installation and reducing system complexity while maintaining fast response times for dynamic control applications.

Constructed from durable materials, the valve is built to withstand harsh conditions, with a **stainless steel or brass body** (depending on the specific variant) that resists corrosion and wear, ensuring longevity even in environments with moisture, dust, or temperature fluctuations. The **pneumatic connection** follows industry-standard **G " (1/4") female threads**, providing a secure and leak-proof seal, while the **electrical interface** includes a **2-pin terminal block** for easy wiring, accommodating standard 120V AC control signals. The valve s **low power consumption** typically around **10-15 watts** makes it energy-efficient, reducing operational costs without compromising performance.

The 2JSA4 is particularly well-suited for applications requiring **precise on/off control**, such as clamping systems, pneumatic cylinders, vacuum applications, or automated assembly lines. Its **fast switching speed** and **low noise operation** contribute to smoother system performance, while the **integrated magnetic coil** ensures reliable actuation even in environments with electrical interference. Additionally, the valve s **compact footprint** allows for flexible integration into tight spaces, making it a versatile choice for both new installations and retrofitting existing pneumatic circuits. With Numatics reputation for durability and precision, the 2JSA4 delivers consistent, dependable performance, reinforcing its status as a trusted component in industrial automation.

### **Pros and Cons of buying a Numatics 2JSA4 Solenoid Valve (120VAC, 60Hz, 0.45 GPM)**

1. **Reliability and Quality** Numatics is a well-established brand in industrial automation, known for durable and high-performance pneumatic components. The 2JSA4 is designed for heavy-duty applications, ensuring long-term reliability in demanding environments.

2. **Direct-Acting Design** This valve operates as a direct-acting solenoid, meaning it does not require external pilot air, simplifying installation and reducing system complexity. It provides immediate response without relying on auxiliary components.

3. **Compact and Space-Efficient** The valve s compact size makes it suitable for applications where space is limited, such as in tight machinery or automated systems.

4. **Low Power Consumption** Operating at **120VAC**, it is energy-efficient compared to some higher-voltage alternatives, reducing electrical costs in continuous operation.

5. **Compatibility with Standard Air Systems** The valve works with standard compressed air (typically 80 100 PSI), making it easy to integrate into existing pneumatic circuits without requiring special modifications.

6. **Quick Exhaust Design** The **0.45 GPM** flow rate is sufficient for many light to medium-duty pneumatic applications, such as clamping, holding, or simple actuation tasks. The quick exhaust feature helps reduce cycle times.

7. **Easy Installation and Maintenance** The valve is designed for straightforward mounting (flanged or threaded connections) and has minimal moving parts, reducing maintenance requirements.

8. **Wide Temperature Range** It operates effectively in a broad temperature range (typically -10 C to 60 C), making it suitable for various industrial environments.

9. **Standardized Components** Being a common Numatics model, spare parts and technical support are readily available, reducing downtime in case of failures.

10. **Cost-Effective for Basic Applications** While not the most advanced solenoid valve on the market, it offers a balanced price-to-performance ratio for simple pneumatic control tasks.

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1. **Limited Flow Rate (0.45 GPM)** The valve s flow capacity is relatively low, meaning it may struggle with high-volume or high-pressure pneumatic tasks. For applications requiring faster or stronger actuation, a larger valve (e.g., 2JSA6 or 2JSA8) would be more appropriate.

2. **No Built-In Coil Protection** Some industrial solenoid valves include overload protection for the coil to prevent damage from power surges. The 2JSA4 lacks this feature, which could shorten its lifespan if exposed to inconsistent or high-voltage conditions.

3. **Basic Control Options** This valve does not support advanced features like proportional control, pulse modulation, or digital communication (e.g., IO-Link). If precise flow regulation or integration with PLCs is required, a more advanced model would be necessary.

4. **No Integrated Filter/Dryer** The valve does not include an internal filter or dryer, meaning the compressed air must be pre-filtered and dried before entering the valve to prevent wear and failure.

5. **Potential Leakage Over Time** Like all pneumatic valves, seals and O-rings may degrade with prolonged use, leading to minor air leaks. Regular maintenance is required to ensure optimal performance.

6. **Limited Environmental Resistance** While it operates in moderate temperatures, extreme conditions (e.g., high humidity, corrosive environments) may require additional protection, such as a sealed housing or corrosion-resistant coatings.

7. **No Built-In Diagnostics** Unlike some modern solenoid valves, this model does not provide feedback on valve status (e.g., open/closed) or diagnostic alerts, which could be useful in complex automation systems.

8. **Higher Cost Than Basic Alternatives** While not excessively expensive, it is more costly than very basic solenoid valves (e.g., some generic or non-branded models). For very simple applications, a cheaper alternative might suffice.

9. **No Direct Mounting Options for Sensors** If integration with position sensors or limit switches is needed, additional wiring and mounting hardware would be required, adding complexity.

10. **Potential Noise in Operation** Direct-acting solenoid valves can produce some noise during operation, which may be a consideration in sensitive environments.

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The **Numatics 2JSA4 solenoid valve** is a **reliable, direct-acting, and compact** solution for **light to medium-duty pneumatic applications** where simplicity, durability, and ease of installation are priorities. It excels in **basic actuation tasks** (e.g., clamping, holding, or simple pneumatic control) where a **low to moderate flow rate (0.45 GPM)** is sufficient. Its **direct-acting design, low power consumption, and compatibility with standard air systems** make it a practical choice for many industrial and automation applications.

However, it is **not ideal for high-flow, high-pressure, or precision-controlled systems**. Users requiring **faster response times, proportional control, or advanced diagnostics** would need to consider higher-end models (e.g., Numatics 2JSA6, 2JSA8, or proportional valves). Additionally, **proper air filtration and maintenance** are essential to maximize its lifespan.

For **budget-conscious buyers** looking for a **proven, no-frills solenoid valve**, the 2JSA4 is a **solid choice**. For applications demanding **higher performance or additional features**, investing in a more advanced model would be justified.

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- You need a **reliable, direct-acting solenoid valve** for **basic pneumatic tasks** (e.g., simple clamping, holding, or light actuation).

- Your system requires **120VAC operation** and **standard compressed air (80 100 PSI)**.

- You prioritize **durability, ease of installation, and minimal maintenance**.

- The **0.45 GPM flow rate** meets your application s requirements.

- You are working within a **moderate temperature range** and **non-corrosive environment**.

- You need **higher flow rates** (e.g., >1 GPM) opt for a **2JSA6 or 2JSA8**.

- Your application requires **proportional control, pulse modulation, or digital integration** choose a **proportional solenoid valve** (e.g., Numatics 2JSA-P).

- You operate in **extreme temperatures, high humidity, or corrosive conditions** select a **sealed or corrosion-resistant model**.

- You need **built-in diagnostics or coil protection** look for models with **overload protection or feedback sensors**.

- Your budget allows for a **more advanced valve** that reduces system complexity (e.g., pilot-operated valves for higher pressures).

- Always **pre-filter and dry** the compressed air to extend the valve s lifespan.

- Ensure proper **wiring and voltage compatibility** (120VAC, 60Hz) to avoid damage.

- If noise is a concern, consider **sound-dampening enclosures** or alternative valve types.

- For long-term reliability, **regularly inspect seals and O-rings** and replace them as needed.

In summary, the **2JSA4 is a well-suited choice for straightforward pneumatic control** but may require upgrades for more demanding applications. Always match the valve s specifications to your exact requirements to ensure optimal performance.

Details:

NUMATICS 2JSA4 SOLENOID VALVE 120VAC 60 Hz 0.45 AMPS, Used, but in good order. Comes as pictured!, FYC1988.

part #: 2jsa4 prices

• $45.13-$129.00

specifications valvesplumbing:

• brand: Numatics
• mpn: 2jsa4
• part type: Valve Solenoid
• valve operation: Solenoid
• country of origin: United States

shipping valvesplumbing:

• cost: $9.95
• service: Standard
• transit: 5-8 Days
• type: Fixed
• class: Standard

offer valvesplumbing:

• availability: In Stock
• started: February 13, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home

returns valvesplumbing:

• time: 30 Days
• policy: Returns Accepted
• method: Money back
• paid by: Seller

payments valvesplumbing:

• other
• wallet: Apple-pay
• credit card: Visa

seller valvesplumbing:

• city: Hopkins, Minnesota
• # reviews: 1967
• rating: 99.8%

general valvesplumbing:

• Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Other Valves Manifolds
• condition: Used

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