Eaton | FD1045LBP10 | Circuit Breaker | 45A | 347V

Meet the Eaton FD1045LBP10 circuit breaker — a precise, dependable overcurrent protection device built for 347V distribution networks. Rated at 45 amps, it's designed for maintenance, retrofit, and replacement projects where exact compatibility matters. When you need a swap-in that you can count on, this is the part to rely on.

Why this Eaton breaker stands out

• Exact part-number compatibility: The FD1045LBP10 is the best reference when matching panels, rails, and trip characteristics — reducing guesswork and downtime.
• Designed for 347V systems: Specifically engineered for 347-volt distribution environments common in commercial buildings, ensuring proper protection and coordination with upstream devices.
• 45A protection: Provides reliable overcurrent protection for circuits up to 45 amperes, helping prevent insulation damage and fault-related outages.
• Easy retrofit and maintenance: A straightforward swap-in option that minimizes service interruptions and simplifies stock management for service technicians.
• Trusted Eaton reliability: Backed by Eaton's engineering excellence, offering consistent performance, predictable trip curves, and long-term availability.

Key specifications

• Amperage: 45 A
• Voltage: 347 V
• Part number: FD1045LBP10

Ideal use cases

Perfect for commercial and light industrial applications where 347V distribution is standard and 45A circuits require reliable protection. Use this breaker during:

• Maintenance on existing Eaton panels to restore original protection settings
• Retrofit projects to upgrade or replace aging breakers while preserving system compatibility
• Emergency replacements in 347V circuits to minimize downtime and keep electrical rooms safe

How to ensure the right fit

Before ordering, confirm fit and ratings are aligned with your panel and circuit requirements. The part number is the best reference for compatibility, helping you avoid mismatches in frame size, trip characteristics, or mounting style.

With the Eaton FD1045LBP10, you get a purpose-built solution that pairs with your 347V infrastructure, reduces the risk of overcurrent faults, and supports reliable operation across maintenance cycles and retrofit installations.