KLIXON CLA-50 Circuit Breaker

( Brand: Klixon ), ( Manufacturer Part Number: CLA-50 ), ( Part Type: Circuit Breaker ), ( Catalogmpn: Sdla50 ), ( Country Of Origin: United States )

Review KLIXON Circuit Breaker Vintage New Old Stock

The **Klixon CLA-50 Circuit Breaker** is a robust, high-performance thermal-magnetic circuit protection device designed to safeguard electrical circuits from overloads and short circuits in both residential and light commercial applications. Engineered with precision and reliability in mind, this compact yet durable breaker features a **50-ampere (A) rating**, making it ideal for protecting branch circuits in homes, small offices, or industrial environments where consistent protection is critical. The CLA-50 incorporates Klixon s proprietary **thermal-magnetic trip mechanism**, which combines a bimetallic strip for overload protection with a magnetic coil for instantaneous short-circuit response, ensuring rapid disconnection when fault conditions exceed safe thresholds. Its **modular design** allows for easy installation in standard electrical panels, accommodating NEMA or IEC mounting configurations, while its **compact footprint** maximizes panel space efficiency. Constructed from high-grade, flame-retardant materials, the CLA-50 is built to withstand harsh environmental conditions, including temperature fluctuations and humidity, ensuring long-term reliability even in demanding settings. The breaker s **clear, labeled trip indicator** provides immediate visual feedback when a fault occurs, simplifying troubleshooting and maintenance. Additionally, its **low arcing performance** enhances safety by minimizing the risk of panel damage during fault interruptions. Whether used in new construction or retrofitting existing systems, the Klixon CLA-50 delivers dependable protection, seamless operation, and peace of mind for electrical engineers, contractors, and homeowners alike.

**Pros and Cons of Buying a Klixon Cla-50 Circuit Breaker**

The Klixon Cla-50 is a thermal-magnetic circuit breaker commonly used in industrial and commercial applications for overcurrent and short-circuit protection. Below is a detailed analysis of its advantages and disadvantages.

### **Pros**

1. **Reliable Overcurrent Protection** The Cla-50 uses a thermal-magnetic mechanism that effectively trips under sustained overcurrent conditions (long-term overloads) and instantaneous short circuits, preventing equipment damage.

2. **Adjustable Trip Settings** Unlike fixed-trip breakers, the Cla-50 allows for manual adjustment of the trip current, making it suitable for applications where load variations occur. This flexibility helps in optimizing protection for different motor sizes and resistive loads.

3. **Durability and Longevity** Klixon breakers are known for their robust construction, often made from high-quality materials that resist corrosion and mechanical wear. This extends the breaker s operational life, reducing replacement frequency.

4. **Compact and Space-Efficient** The Cla-50 is designed to fit into standard panel configurations, making it ideal for applications where space is limited without compromising performance.

5. **Low Maintenance Requirements** Once properly installed, the breaker requires minimal maintenance. The thermal-magnetic design does not rely on moving parts that wear out quickly, reducing downtime.

6. **Compatibility with Various Systems** It can be integrated into motor control centers (MCCs), panelboards, and other electrical distribution systems, making it versatile for different industrial setups.

7. **Cost-Effective for Medium Loads** Compared to more advanced electronic or solid-state breakers, the Cla-50 offers a balance between affordability and protection, making it a practical choice for medium-duty applications.

8. **Instantaneous Trip for Short Circuits** The magnetic trip mechanism provides immediate disconnection in the event of a short circuit, minimizing damage to downstream equipment.

### **Cons**

1. **Limited Electronic Features** Unlike modern electronic circuit breakers, the Cla-50 lacks advanced features such as remote monitoring, programmable trip curves, or communication interfaces. This can be a drawback in smart grid or automated systems.

2. **Manual Reset Required** After tripping, the breaker must be manually reset, which can cause delays in restoring power, especially in critical applications where automatic re-energization is desired.

3. **Sensitivity to Inrush Currents** While adjustable, the thermal-magnetic design may not handle high inrush currents (common in motors) as effectively as specialized motor circuit protectors. This can lead to nuisance tripping if not properly set.

4. **No Built-In Ground Fault Protection** The Cla-50 does not provide ground fault current protection (GFCI), which is essential in environments with high ground fault risks (e.g., wet or conductive environments). Additional protection devices may be required.

5. **Aging and Wear Over Time** Although durable, the thermal elements and contacts can degrade with prolonged use, potentially leading to slower response times or reduced reliability if not serviced regularly.

6. **Limited Availability of Spare Parts** As an older or legacy model, finding replacement parts or compatible accessories may be challenging compared to newer circuit breaker technologies.

7. **Not Suitable for High-Frequency or Harmonic-Rich Environments** The Cla-50 is designed for standard AC systems and may not perform optimally in environments with significant harmonic distortion or high-frequency surges, which can affect its trip characteristics.

8. **No Built-In Arc Fault Protection** Unlike some modern breakers, the Cla-50 does not include arc fault detection, which is increasingly important in preventing electrical fires in residential and commercial wiring.

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### **Conclusion**

The Klixon Cla-50 circuit breaker is a dependable, cost-effective solution for medium-duty overcurrent protection in industrial and commercial settings. Its adjustable thermal-magnetic design, durability, and simplicity make it a practical choice for applications where basic protection is sufficient. However, its lack of advanced features, manual reset requirement, and limited compatibility with modern electrical systems may render it inadequate for high-tech or safety-critical applications.

For users prioritizing reliability, cost efficiency, and straightforward operation, the Cla-50 remains a viable option. However, in environments requiring remote monitoring, automatic reset, ground fault protection, or harmonic mitigation, newer electronic or solid-state breakers may be more appropriate.

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### **Recommendation**

- You need a dependable, low-maintenance breaker for general overcurrent protection.

- Your application involves medium loads with predictable current profiles.

- Budget constraints make advanced breakers impractical.

- You operate in a controlled environment where nuisance tripping is minimal.

- Your system requires remote monitoring, programmable trip settings, or automatic reset.

- You work in high-hazard environments needing ground fault or arc fault protection.

- Your loads involve frequent inrush currents or harmonic distortions.

- Future scalability or integration with smart grid technologies is a priority.

For most traditional industrial applications where simplicity and reliability are key, the Cla-50 remains a sound investment. However, always conduct a thorough risk assessment and consult electrical engineering standards to ensure it meets your specific protection requirements.

Details:

Klixon Circuit Breaker CLA-50 Vintage New Old Stock. Please see and inspect the photos as part of this.

part #: cla50 price

• $45.00

specifications ignitionstartin:

• brand: Klixon
• mpn: Cla-50
• part type: Circuit Breaker
• catalogmpn: Sdla50
• country of origin: United States

payments ignitionstartin:

• other
• credit card: Diners-club
• wallet: Paypal

general ignitionstartin:

• Boat Parts > Inboard Engines Components > Ignition Starting Systems
• condition: New other see details

shipping ignitionstartin:

• cost: $5.97
• carrier: USPS
• type: Calculated
• class: Standard
• service: USPS Ground Advantage
• transit: 4-9 Days

seller ignitionstartin:

• # reviews: 1313
• rating: 99.9%
• city: Foresthill, California

offer ignitionstartin:

• sold: 0
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: May 7, 2026

returns ignitionstartin:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

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