Eaton EHD3045L - 45 A, 480 V, 3-Pole Circuit Breaker | AmpState

The Eaton EHD3045L is a 45A, 480V, 3-pole molded case circuit breaker engineered to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Designed with efficient panel space in mind, this breaker combines compact form with precise protection, making it a trusted choice for electrical distribution in today’s installations.

• Compact molded-case design frees up valuable panel space while maintaining robust protection, helping you fit more circuits into the same enclosure without compromising safety.
• Thermal-magnetic trip unit provides stable, repeatable protection across varying loads and ambient temperatures, reducing nuisance trips and ensuring reliable shutdown when faults occur.
• Three-pole configuration ensures simultaneous disconnection of all live conductors in 3-phase systems, preserving safety and coordination in commercial and light industrial layouts.
• OEM-compatible designed to be used with matching Eaton OEM load centers and panelboards, ensuring proper fit, electrical coordination, and streamlined installation.
• Versatile application suitable for residential, commercial, and light industrial environments where reliable 480V distribution and conductor protection are required.

Technical snapshot

• Manufacturer: Eaton
• Part number: EHD3045L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 45 A
• Voltage rating: 480 V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Why this matters in real-world installations: your panelboard or load center relies on precise fault-response and reliable protection for critical circuits. The EHD3045L’s thermal-magnetic trip mechanism reacts quickly to short circuits and favors stable operation under varying loads, helping protect wiring, equipment, and connected machinery from damage while minimizing downtime.

Ideal use cases

• New or replacement protection for 3-phase 480V distribution in commercial buildings, data centers, and light industrial facilities.
• Upgrading panelboards that require compact breakers to maximize available slots without sacrificing protection quality.
• Retrofits in OEM load centers where matching components ensure proper fit and coordinated trip performance.

Practical tips for best results: verify panel compatibility with Eaton OEM load centers, ensure proper busbar alignment for a secure connection, and pair with appropriately rated feeders to maintain effective protection across your distribution network.