Eaton FD3045L - 45 A, 600 V, 3-Pole Circuit Breaker | AmpState

The Eaton FD3045L is a 45A, 600V, 3-pole molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Its compact design frees valuable panel space without compromising protection, making it a practical choice for modern electrical installations in homes, small businesses, and light industrial settings.

What sets the FD3045L apart

• Space-efficient molded case design maximizes panel real estate while keeping critical protection close at hand.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance across varying loads and ambient temperatures.
• Seamless compatibility is engineered to integrate with matching Eaton OEM loadcenters and panelboards, simplifying upgrades and replacements.
• 3-pole protection ensures all conductors in 3-phase circuits are reliably interrupted, enhancing safety for multi‑wire installations.

Ideal use cases

• Residential service panels requiring dependable overcurrent protection for branch circuits.
• Commercial electrical panels in small offices, shops, or service areas needing quick, reliable protection against overloads and short circuits.
• Light industrial panels where compact form factor and robust protection are essential for space management and reliability.
• Replacement or upgrade projects where matching Eaton panelboards or loadcenters streamline installation and maintain system compatibility.

How it protects your system

The FD3045L provides overcurrent protection at 45A and protects against short circuits by tripping the circuit when current exceeds safe levels. The thermal-magnetic trip unit reacts to both heating (overload) and magnetic (short-circuit) conditions, delivering fast, predictable tripping that you can count on in demanding environments. By interrupting all three poles in a 3-phase circuit, it prevents dangerous arc scenarios and keeps equipment and personnel safer.

Compatibility, installation, and reliability

• Compatibility: designed to pair with Eaton panelboards and loadcenters, ensuring a cohesive, one-brand protection strategy across your electrical system.
• Installation: straightforward integration with standard panel enclosures; ideal for field replacements or new installations where compact protection is required.
• Reliability: built to withstand routine commercial and light industrial duty, delivering consistent protection over time.

Technical specifications at a glance

• Manufacturer: Eaton
• Part number: FD3045L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 45 A
• Voltage rating: 600 V
• Number of poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Upgrade or install the Eaton FD3045L to deliver precise, reliable protection for your panelboards and loadcenters. Its thoughtful design and proven trip technology help you protect sensitive equipment, reduce downtime, and maintain safe, compliant electrical systems across residential, commercial, and light industrial environments.