The Westinghouse FA3020PF-R is a reliable molded case circuit breaker (MCCB) known for its robust protection in commercial and industrial environments. Despite being considered obsolete in new production, this model continues to serve as a trusted component in many electrical systems.
In this comprehensive guide, we explore the FA3020PF-R’s technical specifications, design, real-world usage, and availability, offering insight for both experienced electricians and curious consumers.
Product Overview
The Westinghouse FA3020PF-R belongs to the FA series of circuit breakers developed for demanding three-phase electrical systems. It was originally produced by Westinghouse Electric Corporation, a pioneer in electrical infrastructure.
Over time, the breaker series became affiliated with Eaton and Cutler-Hammer as part of acquisition and distribution strategies.
This breaker has gained a reputation for durability, easy integration, and protection against overcurrent and short-circuit conditions. Whether you’re retrofitting older panels or maintaining large-scale industrial setups, the FA3020PF-R continues to provide value.
Technical Specifications
The performance of the Westinghouse FA3020PF-R is rooted in its carefully engineered specifications. Here’s a table summarizing the core features:
| Specification | Details |
|---|---|
| Model | Westinghouse FA3020PF-R |
| Ampere Rating | 20 Amps |
| Voltage Rating | 600 Volts AC |
| Number of Poles | 3 |
| Phase Type | 3-Phase |
| Interrupting Capacity | 14,000 Amps at 480 Volts |
| Protection Type | Thermal-Magnetic |
| Trip Functions | Long-Time, Instantaneous |
| Connection Type | Bolt-On |
| Terminal Type | Load Side Lug |
| Temperature Rating | 40°C |
| Approximate Weight | 11 lbs (5 kg) |
These specifications highlight the FA3020PF-R’s ability to handle high-powered systems while ensuring reliable protection against electrical faults.
Design and Construction
The Westinghouse FA3020PF-R is built using a molded case design that enhances mechanical strength and electrical insulation. This rugged housing resists damage from heat, moisture, and corrosive environments, making it ideal for industrial settings.
The three-pole structure enables protection across all three phases, preventing damage from phase imbalances or line faults. The bolt-on connection design simplifies installation and ensures secure contact with busbars.
Moreover, the breaker is thermally and magnetically operated. This dual-action mechanism provides both delayed and instant tripping functions, which are essential in preventing damage from overloads or short circuits.
Functionality and Performance
What sets the Westinghouse FA3020PF-R apart is its dependable performance in both standard and high-demand electrical systems. Its thermal-magnetic trip unit ensures that it can react to both gradual increases in load (thermal) and sudden spikes (magnetic), providing layered protection.
Key Performance Highlights:
- Long-time trip ensures the breaker tolerates temporary inrush currents without tripping unnecessarily.
- Instantaneous trip protects circuits from high fault currents by disconnecting immediately.
- High interrupting rating (14kA at 480V) allows it to safely break substantial fault currents without damage.
This type of breaker is typically installed in industrial motor control centers, commercial distribution panels, and backup generator lines, thanks to its reliability under stress.
Installation and Maintenance
Installing the Westinghouse FA3020PF-R requires adherence to standard electrical safety procedures. Since it uses a bolt-on connection, technicians must ensure the panelboard or switchgear is compatible.
Installation Tips:
- Confirm breaker compatibility with the panelboard.
- De-energize the system before mounting.
- Bolt the breaker securely to the busbar.
- Connect the load side lugs to the appropriate conductors.
- Inspect torque specifications and test manually.
Maintenance Guidelines:
- Regular thermal inspections to identify overheating.
- Periodic mechanical operation tests to ensure tripping mechanism functionality.
- Cleaning to avoid dust accumulation on terminals and case.
Proper maintenance extends the life of this circuit breaker and maintains consistent performance.
Availability and Procurement
Although the Westinghouse FA3020PF-R is no longer in new production, it remains available through reconditioned or surplus suppliers. Many electrical resellers carry certified pre-owned or refurbished units that meet original manufacturer specifications.
Factors to Consider When Purchasing:
- Source credibility – Choose reputable vendors specializing in obsolete breakers.
- Warranty coverage – Look for a 1-year minimum warranty.
- Condition – Ensure the unit is tested and certified.
- Compatibility – Verify that the specifications match your system requirements.
Reconditioned units are significantly more affordable than alternatives and can serve well in legacy installations.
Comparison with Similar Models
The Westinghouse FA3020PF-R is part of a broader FA breaker line, which includes variations in amperage, trip features, and voltage compatibility.
| Model | Amps | Voltage | Trip Unit | Difference |
|---|---|---|---|---|
| FA3020PF-R | 20A | 600V | Thermal-Magnetic | Standard version with bolt-on type |
| FA3030 | 30A | 600V | Thermal-Magnetic | Higher amperage |
| FA3020H | 20A | 600V | High Interrupting Cap. | Enhanced interrupting capacity |
While newer models offer digital trip units or arc fault detection, the FA3020PF-R remains a cost-effective and dependable choice for traditional setups.
User Experiences and Reviews
Users consistently praise the Westinghouse FA3020PF-R for its robustness and easy integration. It’s favored among technicians working with legacy systems who need drop-in replacements without panel rewiring. Some common feedback includes:
- Positive: Durable under frequent cycling, reliable fault interruption, and easy installation.
- Criticism: Limited availability and lack of modern features like remote trip or diagnostics.
Nevertheless, in environments where functionality, not features, is paramount, the FA3020PF-R stands tall.
Conclusion
The Westinghouse FA3020PF-R remains a respected circuit breaker choice even in today’s tech-heavy electrical world. Its solid construction, reliable protection, and compatibility with existing systems make it a go-to for commercial and industrial maintenance projects.
While newer models with smart features are available, the FA3020PF-R excels in settings where simplicity and proven reliability matter most.
If you’re managing an older electrical setup or sourcing parts for a retrofit, this breaker may be your best solution. With reconditioned units widely available, the Westinghouse FA3020PF-R continues to safeguard power systems with trusted performance.
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