Square D FJA34050 Circuit Breaker, 50A, 3-Pole, 480V

The Square D FJA34050 is a rugged circuit breaker designed for demanding industrial electrical service, maintenance, and replacement projects. With a 50 A rating across 3 poles in a 480 V system, this device delivers reliable protection for high-load, three-phase environments.

Specifications

• Manufacturer: Square D
• Part number: FJA34050
• Product type: Circuit Breaker
• Amperage: 50 A
• Poles: 3
• Voltage: 480 V

Why it stands out for industrial setups

Designed to integrate smoothly with Square D panels and accessories, the FJA34050 delivers dependable trip performance essential for protecting feeders, motors, and other critical loads in 480 V three-phase distribution. The three-pole configuration is particularly well-suited for balanced protection of all phases, reducing the risk of phase-related faults in demanding facilities.

Key benefits and differentiators

• Part-number-driven compatibility: Use FJA34050 to confirm fit for your specific panel and application requirements.
• Industrial-grade reliability: Built to perform consistently in challenging environments where downtime isn’t an option.
• 3-phase protection: Ideal for 480 V systems, helping prevent overloads and electrical faults across all phases.
• Streamlined maintenance and replacement: A known Square D design supports straightforward commissioning and spare-parts planning.

Ideal use cases

Best suited for factories, manufacturing lines, and other industrial facilities where 480 V three-phase power feeds control panels and heavy machinery. This breaker is a practical choice when upgrading protection, restoring circuit integrity, or performing routine maintenance on existing 3-phase circuits.

Compatibility and installation tips

Always verify fit by part number and application requirements before installation. If you need help matching a part number or confirming compatibility, send a message and we’ll assist in validating the right fit for your setup.

Note: This description reflects the provided product details and is intended to help you understand how the Square D FJA34050 circuit breaker supports reliable, industrial-grade protection in 480 V three-phase systems. Installation should be performed by qualified personnel in accordance with all safety codes and standards.