Eaton EHD3045 - 45 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton EHD3045 is a rugged 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection at 480V. With a 45A rating, it’s built to handle demanding commercial and light industrial loads while preserving the integrity of your panelboards and loadcenters. This isn’t just a switch — it’s a protective backbone for your electrical distribution.

Why the EHD3045 stands out

• Secure bolt-on mounting ensures a rigid, vibration-resistant bus connection, reducing wear and ensuring reliable operation in environments with equipment vibration or movement.
• Thermal-magnetic trip unit provides stable, repeatable protection performance across varying temperatures and load conditions, helping prevent nuisance trips while safeguarding equipment.
• OEM-compatible design is engineered to work seamlessly with matching OEM loadcenters and panelboards, making replacements and upgrades straightforward and downtime-minimizing.
• Three-phase protection with 3-pole configuration delivers coordinated safeguarding for balanced three-phase systems common in commercial and light industrial settings.
• Versatile applications suitable for residential, commercial, and light industrial installations where reliable motor control, distribution, and equipment protection are essential.

Key specifications at a glance

• Manufacturer: Eaton
• Part Number: EHD3045
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 45A
• Voltage Rating: 480V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases and scenarios

Use the Eaton EHD3045 to protect branch circuits feeding motors, compressors, HVAC units, and other three-phase equipment in commercial spaces, data centers, or light industrial facilities. Its bolt-on construction makes it a reliable upgrade or replacement in existing panelboards and loadcenters that require sturdy, vibration-resistant connections. If you’re upgrading an older distribution panel or expanding a three-phase distribution network, this 45A, 480V breaker helps maintain system safety without compromising performance.

Installation notes and compatibility

For optimal results, pair the EHD3045 with matching OEM panelboards and loadcenters designed for bolt-on MCCB protection. Follow applicable electrical codes and manufacturer torque recommendations during installation to ensure a secure connection and proper trip sensitivity. This breaker is purpose-built to slot into compatible assemblies, delivering consistent protection in demanding environments.

Engineered for reliability and straightforward compatibility, the Eaton EHD3045 provides precise, dependable protection for your three-phase distribution needs. Trust AmpState to deliver a proven solution that aligns with your panelboard and loadcenter requirements.