Eaton EHD3040 - 40 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Eaton EHD3040 is a 40A, 480V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built to keep critical electrical systems safe, this unit combines rugged construction with precise protection performance.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, helping maintain consistent electrical contact in environments where equipment and machinery generate movement.
• Thermal-magnetic trip unit delivers stable, repeatable protection, quickly clearing faults while minimizing nuisance trips for normal startup surges or brief overloads.
• OEM-compatible design is engineered to fit and perform with matching Eaton OEM loadcenters and panelboards, streamlining installation and reducing compatibility concerns.
• Versatile application suited for residential, commercial, and light industrial panel assemblies, making it a practical choice for upgrades, replacements, and new builds.

Technical snapshot

• Manufacturer: Eaton
• Part Number: EHD3040
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40 A
• Voltage Rating: 480 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Use this unit when you need reliable protection for a three-phase circuit in panelboards and loadcenters, with installation that emphasizes a solid, vibration-resistant connection and long-term performance. Whether upgrading an existing system or specifying hardware for a new installation, the Eaton EHD3040 3-pole bolt-on breaker offers a precise, dependable solution that aligns with Eaton’s OEM loadcenters and panelboards.