Eaton FDC3040L - 40 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Eaton FDC3040L — a 40 A, 600 V, 3-pole molded case circuit breaker built to safeguard panelboards and load centers with dependable, real-world performance. This compact, purpose-built device delivers reliable branch circuit overcurrent and short-circuit protection where space and reliability matter most.

Key advantages that matter in the field

• Compact molded case design optimizes panel space, making it easier to fit additional circuits without crowding the bus.
• Thermal-magnetic trip unit provides stable, repeatable protection by responding to both gradual overloads and sudden short-circuit events, reducing nuisance trips while maintaining safety.
• 3-pole construction ideal for 3-phase panel configurations, ensuring synchronized protection across all phases in commercial and light-industrial systems.
• OEM panel compatibility designed to work with matching Eaton OEM load centers and panelboards, simplifying installation and replacement in existing setups.
• Versatile application suitable for residential, commercial, and light-industrial environments where reliable circuit protection is essential.

Technical snapshot

• Amperage rating: 40 A
• Voltage rating: 600 V
• Poles: 3
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

• Protecting feeders and branch circuits in light industrial control panels and commercial electrical rooms
• Upgrading or replacing aging breakers in OEM panelboards where a compact, compatible 3-pole solution is required
• Providing robust protection for three-phase equipment such as pumps, conveyors, HVAC controls, and lighting systems in commercial settings
• Servicing new installations that demand precise thermal-magnetic protection with space-efficient design

Why choose the Eaton FDC3040L

This breaker combines space efficiency with dependable protection, specifically engineered to align with Eaton’s panelboard ecosystems. By pairing a compact form factor with a reliable thermal-magnetic trip mechanism, it reduces downtime caused by nuisance trips and simplifies panel layout planning. For projects requiring a 40 A, 600 V, 3-pole solution, the FDC3040L delivers predictable, repeatable performance across a range of commercial and light-industrial applications.

Practical tips for installation and use

• Verify compatibility with the existing OEM panelboard or load center to ensure seamless mechanical fit and electrical coordination.
• When wiring, follow proper torque specifications for the terminals to maintain secure connections and consistent trip performance.
• Use as a protective device for branch circuits where three-phase protection is needed, ensuring balanced phase loading and reliable fault clearing.
• Keep a record of ampacity and voltage requirements on job sheets to streamline future replacements or panel upgrades.