Eaton | FS340045A | Circuit Breaker | 45A | 3-Pole | 480V

Engineered by Eaton, the FS340045A circuit breaker stands out as a precise, ready-to-install protection device for demanding 480V three-phase systems. With a 45-amp rating and a 3-pole configuration, this breaker is built to safely interrupt fault currents and protect motors, drives, and industrial equipment in manufacturing floors, data centers, and large electrical distribution panels.

Key features and fit-first details

• Amperage: 45 A
• Poles: 3-Pole
• Voltage rating: 480 V
• Part number: FS340045A — the best reference for compatibility

Why choose FS340045A for maintenance, retrofit, or replacement

• Exact compatibility: Ensure safe, predictable performance by matching the exact Eaton catalog part number to your panel or equipment.
• Streamlined retrofit: The 3-pole, 480V specification aligns with common industrial power distribution setups, enabling quick upgrades or replacements with minimal rewiring.
• Reliable protection for three-phase systems: Protect motors, conveyors, pumps, and drives in environments where a 480V, three-phase supply is the norm.
• Durable, industry-grade design: Built to withstand demanding industrial conditions and frequent cycling in maintenance-friendly form factors.

Practical usage scenarios

• Retrofit an aging 480V electrical panel in a factory, ensuring continued protection with a trusted Eaton part.
• Replace a failing breaker in a three-phase motor circuit, preserving straightforward installation and reliability.
• Upgrade equipment protection in data centers or manufacturing lines that rely on 480V distribution and 3-phase breakers.

Important compatibility note

Before ordering, confirm fit and ratings for your specific installation. The FS340045A part number is the most reliable reference for compatibility with Eaton panels and 480V three-phase circuits.

Installation and safety tips

• Ensure power is fully de-energized before servicing or replacement.
• Verify the panel labeling and system voltage to match 480V three-phase configuration.
• Follow the manufacturer’s installation guidelines and local electrical codes for safe, compliant operation.

Where this fits in your toolkit

• Industrial electrical distribution
• Motor control centers and machinery panels
• Facility upgrades and preventive maintenance programs