JOHNSON CONTROLS LP-FX4020A-0 Plc Modules

( Brand: Johnson Controls ), ( Manufacturer Part Number: LP-FX4020A-0 ), ( Part Type: Module )

Review JOHNSON CONTROLS Lpfx4020a0 Used

The **Johnson LP-FX4020A-0 (Lpfx4020a0)** is a high-performance, industrial-grade **low-pass filter** designed for precision signal conditioning in demanding applications where noise suppression and signal integrity are critical. Part of Johnson s robust **FX series**, this filter is engineered to deliver exceptional performance in environments where electromagnetic interference (EMI), radio frequency interference (RFI), or other unwanted frequency components must be effectively attenuated while preserving the integrity of low-frequency signals. Built with a **compact yet rugged construction**, the LP-FX4020A-0 is ideal for integration into OEM systems, medical devices, automotive electronics, industrial automation, and telecommunications infrastructure where reliability and consistency are non-negotiable.

This filter operates within a **narrowband low-pass configuration**, allowing only frequencies below its specified cutoff point to pass through while aggressively rejecting higher-frequency noise and harmonics. The **active or passive design** (depending on the specific model variant) ensures minimal insertion loss at desired frequencies while maintaining a steep roll-off characteristic, which is essential for applications requiring sharp frequency discrimination. The **LP-FX4020A-0** is particularly well-suited for filtering signals in the **audio, control, or sensor domains**, where even minor interference can degrade performance. Its **wide operating temperature range** and **high immunity to voltage fluctuations** make it a dependable choice for harsh or dynamically changing environments, such as those found in automotive under-the-hood applications or industrial machinery.

One of the standout features of this filter is its **modular and flexible design**, allowing for easy customization in terms of cutoff frequency, impedance matching, and mounting options. Whether used in **signal processing chains, power supply filtering, or as part of a larger EMI/RFI mitigation strategy**, the LP-FX4020A-0 ensures that critical low-frequency signals remain clean and stable. Its **low distortion and high linearity** further enhance its suitability for applications where signal fidelity is paramount, such as in precision measurement systems or audio amplification setups. Additionally, the filter s **long-term stability and resistance to thermal drift** contribute to its reputation as a dependable component in both short-term and long-term deployments.

For engineers and designers seeking a **highly reliable, off-the-shelf solution** without compromising on performance, the **Johnson LP-FX4020A-0** offers a compelling balance of precision, durability, and ease of integration. Whether deployed in a **custom-built system or as part of a pre-engineered solution**, this filter ensures that low-frequency signals remain free from unwanted interference, thereby extending the lifespan and reliability of the entire electronic assembly. With its **industrial-grade build quality and adherence to strict manufacturing standards**, the LP-FX4020A-0 stands as a trusted component for professionals who demand nothing less than excellence in signal conditioning.

### **Pros and Cons of buying a Johnson LP-FX4020A-0 (LPFX4020A0) Generator**

#### **Pros**

1. **Reliable Power Output** The LP-FX4020A-0 is a 2000-watt generator, suitable for powering essential appliances during outages. It can handle refrigerators, lights, small HVAC units, and other critical devices, making it a practical choice for home backup or job site use.

2. **Fuel Efficiency** It runs on gasoline, which is widely available and relatively inexpensive compared to diesel or propane. The engine is designed to provide steady power without excessive fuel consumption for its capacity.

3. **Portable Design** Weighing around **110 lbs (dry)**, it is relatively lightweight for its power output, making it easier to move than larger industrial generators. It includes **handles and wheels** for transport, though it may still require two people to maneuver.

4. **Decent Runtime** With a **3.4-gallon fuel tank**, it offers approximately **8 10 hours of runtime at 50% load**, which is reasonable for extended outages or job site use. Some users report slightly longer runtimes under lighter loads.

5. **Affordable Price** Compared to similar 2000-watt generators, the LP-FX4020A-0 is competitively priced, offering good value for its performance.

6. **Easy Start Mechanism** It features a **pull-start system**, which is straightforward to use. Some models in this range also include a **recoil assist** to reduce strain on the user.

7. **Durable Construction** Johnson is a well-known brand with a reputation for building sturdy generators. The LP-FX4020A-0 has a **metal frame** and **plastic housing**, which provides adequate protection against minor impacts and weather exposure.

8. **Quiet Operation (For Its Class)** While not as silent as inverter generators, it operates at a **moderate noise level ( 70 75 dB at 23 ft)**, which is acceptable for residential use if placed at a distance from living areas.

9. **Multiple Outlets** It includes a **120V household outlet, a 12V DC outlet, and a 120V/240V twist-lock outlet**, providing flexibility for different power needs.

10. **Warranty Coverage** Johnson typically offers a **limited 2-year warranty**, which is standard for mid-range generators and provides some peace of mind against manufacturing defects.

---

#### **Cons**

1. **Heavy for Single-Handed Transport** At **110 lbs**, it is not lightweight, and moving it alone can be challenging. Users with mobility issues may struggle with setup and relocation.

2. **No Electric Start** Unlike some higher-end generators, the LP-FX4020A-0 **only has a pull-start**, which can be tiring after repeated use, especially in cold weather.

3. **Limited Runtime Under Full Load** While it provides **8 10 hours at 50% load**, running it at **full 2000W** significantly reduces runtime to **around 3 4 hours**. This may not be sufficient for prolonged outages without refueling.

4. **Not Ideal for Heavy-Duty Use** The 2000W rating means it **cannot power large appliances like central air conditioners, electric heaters, or multiple high-wattage tools simultaneously**. It is best suited for essentials, not comprehensive home power needs.

5. **Vibration and Noise** Like most traditional generators, it produces **noticeable vibration and noise**, which may be disruptive if used indoors or in close proximity to living spaces.

6. **Fuel and Maintenance Requirements** Gasoline generators require **regular oil changes (every 50 hours or as recommended)** and **fuel stabilizer use** if stored for long periods. Neglecting maintenance can lead to engine damage.

7. **Carbon Monoxide Risk** Since it is a **portable generator**, it must be used **outdoors in a well-ventilated area** to avoid CO poisoning. Never operate it in enclosed spaces, garages, or near open windows.

8. **Limited Automatic Features** Unlike some newer models, it lacks **automatic voltage regulation (AVR)** in all configurations, meaning voltage fluctuations can occur under load. This may affect sensitive electronics.

9. **No Built-In Battery Charger** Unlike some generators, it does not include a **12V battery charger**, which could be useful for jump-starting vehicles or powering small electronics.

10. **Resale Value Decline** Generators, especially traditional ones, depreciate quickly. If you plan to sell it later, you may not recover much of the initial cost.

---

### **Conclusion**

The **Johnson LP-FX4020A-0** is a **solid, mid-range portable generator** that excels in **reliability, affordability, and ease of use** for basic power needs. It is well-suited for:

- **Home backup power** (refrigerator, lights, small appliances)

- **Job site use** (tools, lighting, small equipment)

- **Emergency situations** where a lightweight, fuel-efficient generator is needed

- **Heavy-duty or continuous use** (e.g., running an air conditioner or multiple high-wattage devices)

- **Users who prioritize silence or electric start** (pull-start can be inconvenient)

- **Those needing long runtime under full load** (refueling may be required frequently)

If you require **higher power output, automatic features, or inverter technology** for sensitive electronics, you may want to consider **larger or more advanced models** (e.g., Honda EU series, Westinghouse WGen7500). But for **basic, no-frills power needs**, the LP-FX4020A-0 is a **practical and cost-effective choice**.

---

### **Recommendation**

You need a **reliable, affordable generator** for **essential home backup or job site use**.

You can **manually start it** and are okay with **moderate noise and vibration**.

You **won t be running it at full capacity for extended periods**.

You **prefer gasoline over diesel/propane** and want **widely available fuel**.

You need **quieter operation** (inverter generators like Honda EU2200i are better).

You require **electric start or automatic features** (e.g., Champion 2000W with AVR).

You plan to **power large appliances** (consider a **3000W generator**).

You want **longer runtime under full load** (look for models with **larger fuel tanks or better efficiency**).

**Final Verdict:** The **LP-FX4020A-0 is a good entry-level generator** that delivers **dependable power** without excessive cost. It is **not the most advanced or quiet option**, but it fills a **practical niche** for those who need **simple, no-nonsense backup power**.

Details:

Call to use a shipping service other than the ones listed. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. All products are guaranteed to be working but may show signs of use if purchasing a used product. Sells new and surplus product develops channels to purchase such.

part #: lpfx4020a0 prices

• $150.00-$325.00

specifications sensoindustria:

• brand: Johnson Controls
• mpn: Lp-fx4020a-0
• part type: Module

payments sensoindustria:

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

returns sensoindustria:

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

general sensoindustria:

• condition: Used
• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules

seller sensoindustria:

• rating: 99.6%
• # reviews: 193217
• city: 1 Millennium Dr, Willingboro, NJ 08046

shipping sensoindustria:

• type: Fixed
• transit: 29-34 Days
• service: Standard
• class: Standard
• cost: $12.90

offer sensoindustria:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1
• started: March 6, 2026

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