FEDERAL PACIFIC ELECTRIC 4204-AU23 Automation
( Brand: Federal Pacific Electric ), ( Manufacturer Part Number: 4204-AU23 )
Review FEDERAL PACIFIC ELECTRIC 4204au23 Used
The **Federal Pacific Electric (FPE) 4204-AU23** (also commonly referenced as the **4204AU23**) is a robust and historically significant **200-ampere main breaker panel**, designed for residential and light commercial electrical distribution systems. Manufactured by Federal Pacific Electric Company an industry leader in the mid-20th century this panel is part of the company s **Sta-Tite** line, known for its distinctive **knob-and-tube** circuit breaker design, which was widely installed in homes and buildings constructed between the 1950s and 1980s. Unlike modern panels that utilize molded-case circuit breakers (MCBs), the **4204-AU23** features **thermal-magnetic breakers** with a unique mechanical linkage system, allowing multiple breakers to trip simultaneously when an overload occurs, a feature that contributed to its reliability in certain applications.
This particular model is a **42-space main lug panel**, meaning it accommodates a **200-ampere main breaker** (the **4204-AU23 main breaker**) along with **40 additional 15- or 20-ampere branch circuit breakers**, providing ample capacity for modern electrical demands while maintaining compatibility with older wiring setups. The panel s **aluminum enclosure** is sturdy and weather-resistant, designed to protect internal components from environmental factors, though it is important to note that Federal Pacific panels have faced scrutiny over the years due to concerns about **thermal overload protection deficiencies** in certain breaker configurations. Despite this, the **4204-AU23** remains a functional and recognizable component in many older electrical systems, often requiring **upgrading to a modern panel** for safety and compliance with current electrical codes.
Visually, the **4204-AU23** is easily identifiable by its **vertical breaker arrangement**, where each circuit breaker is mounted on a **knob-and-tube assembly** with a distinctive **rotating handle** that flips to the "OFF" position when tripped. The **main breaker** is typically located at the top of the panel, with a **200-ampere rating** suitable for homes with high electrical loads, such as those equipped with electric heaters, large appliances, or multiple air conditioning units. The **bus bars** inside the panel are designed to distribute power efficiently, though some older installations may exhibit **loose connections or corrosion**, which can lead to electrical hazards if not addressed by a licensed electrician.
For homeowners or contractors working with this panel, it is crucial to understand that **Federal Pacific breakers are not UL-listed for use in modern residential applications** due to safety concerns, particularly regarding their inability to properly trip under sustained overload conditions. However, the **4204-AU23 itself** remains a functional electrical distribution unit when properly maintained, and in some cases, it can be **replaced with a compatible main breaker** (such as a **Square D or GE equivalent**) to restore proper circuit protection. If an upgrade is necessary, a **new main panel** (such as a **CHW or Federal Pacific-compatible panel**) should be installed to ensure compliance with **NFPA 70 (NEC) standards** and to eliminate potential fire risks associated with the original breaker technology.
In summary, the **Federal Pacific Electric 4204-AU23** is a **historically important yet functionally distinct** electrical panel that played a key role in mid-century home construction. While it offers reliable power distribution in its original form, its use in modern systems requires careful consideration of safety upgrades. Whether retained as part of a retrofitted system or replaced entirely, this panel represents a fascinating piece of electrical engineering history one that continues to influence discussions about older home electrical safety.
The **Federal Pacific Electric (FPE) 4204-AU23** is a type of **Federal Pacific Electric (FPE) panel**, specifically a **4204 series breaker**, which was widely installed in homes and commercial buildings in the U.S. between the **1970s and early 1990s**. These panels have been the subject of significant controversy due to safety concerns. Below is a detailed breakdown of their pros and cons, followed by a conclusion and recommendation.
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### **Pros of the FPE 4204-AU23 Panel**
1. **Widespread Availability and Compatibility**
- The FPE 4204 series was a common electrical panel during its production period, meaning replacement parts and breakers are still available from some suppliers, though they may be harder to find than modern alternatives.
- It was designed to work with standard 120/240V residential wiring, making it compatible with existing home setups in many cases.
2. **Lower Initial Cost (Historically)**
- When originally installed, FPE panels were often marketed as a cost-effective alternative to more expensive panels like those from Square D or GE. While this is less relevant today due to safety concerns, the initial installation cost may have been lower than modern panels.
3. **Mechanical Reliability (In Some Cases)**
- Some owners report that individual breakers in FPE panels can function mechanically without tripping, which may give a false sense of reliability. However, this does not address the underlying safety risks.
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### **Cons of the FPE 4204-AU23 Panel**
1. **Safety Hazards and Fire Risks**
- The **primary and most critical issue** with FPE panels is their **failure to properly trip during overloads or short circuits**. This is due to design flaws in the breaker mechanism, which can lead to:
- **Overheating** of wiring and panel components.
- **Electrical fires**, which have been linked to numerous incidents and deaths.
- **Failure to protect the home** during faults, increasing the risk of electrical shocks or equipment damage.
- The **National Electrical Code (NEC)** and **Underwriters Laboratories (UL)** have **discontinued certification** for FPE panels due to these safety failures.
2. **No UL Listing or Compliance**
- Unlike modern panels, FPE panels **were never UL-listed** for use in residential applications after the 1980s. This lack of certification means they do not meet current safety standards.
- The **NEC (National Electrical Code)** has **explicitly discouraged** the use of FPE panels in new installations or repairs since the 1980s.
3. **Difficulty in Testing and Verification**
- Unlike modern panels, FPE breakers **cannot be reliably tested** to confirm their functionality. Even if a breaker appears to trip, it may not do so consistently under fault conditions.
- Electrical inspectors and safety organizations **strongly advise against** relying on FPE panels for protection.
4. **Insurance and Resale Issues**
- **Homeowners insurance companies** may **deny coverage** or **increase premiums** if an FPE panel is present, as it is considered a fire hazard.
- **Real estate transactions** can be complicated, as buyers may require the panel to be replaced before closing, leading to delays or reduced offers.
5. **Legal and Liability Risks**
- If an electrical fire occurs due to an FPE panel, the homeowner could face **legal liability**, especially if the panel was not properly disclosed or repaired.
- Some states and municipalities have **banned or restricted** the use of FPE panels in new work or renovations.
6. **Difficulty in Finding Qualified Electricians**
- While some electricians may still work on FPE panels, **many avoid them** due to safety concerns. Finding a licensed electrician familiar with FPE replacements can be challenging.
7. **Upgrading to a Modern Panel is Often Required**
- If an FPE panel is found during an inspection or renovation, **replacement is strongly recommended**. Modern panels (e.g., CH, Square D, Siemens) are **UL-listed, NEC-compliant, and far safer**.
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### **Conclusion**
The **FPE 4204-AU23 panel is a high-risk electrical component** that poses significant safety hazards due to its **reliability failures, lack of UL certification, and association with electrical fires**. While it may have been a cost-effective or convenient choice in the past, the **risks far outweigh any perceived benefits**. Modern electrical safety standards, insurance requirements, and legal considerations make it **unwise to retain an FPE panel** in a home.
The **best course of action** is to **replace the panel with a UL-listed, NEC-compliant alternative** as soon as possible. This ensures **fire safety, insurance compliance, and peace of mind**. Attempting to repair or modify an FPE panel is **not recommended**, as it does not address the fundamental design flaws.
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### **Recommendation**
1. **Hire a Licensed Electrician** to inspect the panel and confirm its type. If it is an FPE 4204 series, proceed with replacement.
2. **Replace the Panel Immediately** with a **modern, UL-listed panel** (e.g., CH, Square D, Siemens, or Federal Pacific s newer models if available). Ensure the electrician follows **NEC guidelines** and installs the correct breaker sizes.
3. **Check with Your Insurance Provider** to confirm coverage and any requirements for panel replacement.
4. **Document the Work** for future inspections or resale purposes.
5. **Avoid DIY Repairs** FPE panels are not safe to work on without professional oversight.
**Final Verdict:** The **FPE 4204-AU23 panel should be replaced without delay** due to its inherent safety risks. The cost of replacement is a **necessary investment** in protecting your home, property, and family.
Details:
All products are guaranteed to be working but may show signs of use if purchasing a used product. 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. FEDERAL PACIFIC ELECTRIC 4204-AU23 / 4204AU23 USED MAGNETIC MOTOR STARTER, 110VAC, 25HP, 45AMP, SIZE 2.
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part #: 4204au23 prices
- $149.99-$226.95
specifications automationjack:
- brand: Federal Pacific Electric
- mpn: 4204-au23
seller automationjack:
- city: 1 Millennium Dr, Willingboro, NJ 08046
- # reviews: 196876
- rating: 99.6%
general automationjack:
- Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment
- condition: Used
returns automationjack:
- paid by: Buyer
- time: 30 Days
- method: Money back
- policy: Returns Accepted
shipping automationjack:
- type: Fixed
- transit: 22-34 Days
- class: Standard
- cost: $12.90
- service: Standard
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offer automationjack:
- started: March 29, 2026
- sold: 0
- availability: In Stock
- quantity: 1
- options: Ship-to-home
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