Eaton EDH3125 125A 240V 3-Pole Bolt-On Circuit Breaker

The Eaton EDH3125 is a purpose-built 125 A, 240 V, 3-pole bolt-on molded case circuit breaker designed to protect your electrical system with precision. Built for dependable branch circuit overcurrent and short-circuit protection, it excels in panelboards and load centers where a secure, vibration-resistant connection matters most.

Why the EDH3125 stands out

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection that stays aligned even in dynamic environments.
• Thermal-magnetic trip unit provides stable, repeatable protection performance, quickly clearing faults while minimizing nuisance trips.
• 3-pole configuration supports reliable 3-phase protection, ideal for modern commercial and light industrial circuits.
• 125 A, 240 V ratings align with common branch-circuit needs, offering scalable protection for medium-load panelboards.
• OEM-compatible designed to match Eaton’s load centers and panelboards, ensuring seamless integration with existing equipment.
• Versatile applications suitable for residential, commercial, and light industrial installations where dependable overcurrent protection is essential.

Use cases and practical applications

• Residential service panels and subpanels requiring robust 3-phase protection for small commercial loads.
• Commercial electrical rooms with panelboards that demand a secure, bolt-on breaker for high-vibration environments.
• Light industrial equipment feeds where precise thermal-magnetic trip response minimizes downtime and protects sensitive circuits.
• Retrofits or OEM-compatible installations where matching panelboard components maintain system coordination and warranty requirements.

What’s inside the specification sheet

• Manufacturer: Eaton
• Part Number: EDH3125
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 125 A
• Voltage Rating:
240 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Installation at a glance

Designed for compatibility with matching OEM panelboards and load centers, the EDH3125 bolts directly onto the bus to form a solid, low-resistance connection. For installers, this means quicker, cleaner wiring with fewer alignment issues and a safer, more reliable current path. Ensure your panelboard is rated for bolt-on moldeds and that all local electrical codes are followed during installation.

Why this matters for you

• Reliable protection for critical circuits in homes, offices, and light-industrial spaces.
• Efficient, secure installation that reduces vibration-induced wear over time.
• OEM-compatible design helps maintain system integrity and simplifies panel upgrades or replacements.