Eaton EHD3100 - 100 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Eaton EHD3100—a dependable 100 A, 480 V, 3-pole bolt-on molded case circuit breaker designed to protect your panelboards and load centers from overcurrent and short circuits. Built for consistent performance in real-world environments, it delivers reliable protection where uptime and safety matter most.

• Secure bolt-on mounting creates a rigid, vibration-resistant bus connection that stays fixed even in panels with movement or vibration.
• Thermal-magnetic trip unit provides stable, repeatable protection—responding quickly to overloads and short circuits while reducing nuisance trips.
• OEM-compatible design is engineered to work with matching manufacturer load centers and panelboards for straightforward replacements and seamless integration.
• Versatile application suitable for residential, commercial, and light industrial environments where reliable 3-phase protection at 480 V is essential.

The Eaton EHD3100 is a thermal-magnetic molded case circuit breaker with a 100 A rating and a 480 V operating voltage across 3 poles. Its bolt-on mounting style ensures a solid connection in OEM panelboards, making it an ideal choice for upgrade projects, new installations, or routine maintenance in 3-phase distribution systems.

• Manufacturer: Eaton
• Part number: EHD3100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100 A
• Voltage rating: 480 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and practical scenarios

• Protect 3-phase 480 V distribution circuits in commercial panelboards and light industrial installations.
• Replace aging or defective breakers in OEM panelboards with a compatible Eaton device to maintain performance and safety standards.
• Install as part of a controlled, organized protection scheme for equipment with sensitive startup loads that benefit from stable thermal-magnetic tripping behavior.

Why choose the EHD3100 over other options? Its bolt-on design grants a secure, vibration-tolerant connection, reducing the risk of loose bus bars in demanding environments. The thermal-magnetic trip mechanism delivers predictable protection, helping you avoid unnecessary outages while safeguarding both personnel and equipment. And because it’s designed to align with Eaton’s OEM load centers and panelboards, you get a harmonious, maintenance-friendly solution that simplifies replacements and future upgrades.

Practical tips

• Ensure you’re selecting a breaker that’s compatible with your specific Eaton OEM panelboard or load center to guarantee proper fit and protection coverage.
• Verify the 3-pole 480 V configuration matches your distribution system to avoid compatibility issues during installation.
• Keep spare EHD3100 units on hand for quick maintenance or future panel upgrades to minimize downtime.