Eaton BR310 - 10 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Eaton BR310 is a dependable 3-pole plug-in molded case circuit breaker rated at 10A for 240V operation. Designed to deliver reliable branch-circuit overcurrent and short-circuit protection in panelboards and load centers, it combines fast installation with precise protection for everyday electrical systems.

Why the BR310 stands out

• Fast plug-in connection for quick installation and straightforward field replacement, minimizing downtime during upgrades or servicing.
• Thermal-magnetic trip unit provides stable, repeatable protection across varying loads and fault conditions, reducing nuisance trips while safeguarding downstream equipment.
• OEM-compatible with matching Eaton load centers and panelboards, ensuring a consistent fit, performance, and electrical characteristics.
• 3-pole at 240V supports 3-phase circuits and common 240V panel configurations, making it suitable for a range of commercial and light industrial setups.

Applications and ideal use cases

• Residential service panels and subpanels needing reliable 240V protection for multi-wire branch circuits.
• Commercial electrical panels and light industrial control panels where quick replacements reduce downtime.
• Retrofits or upgrades in existing Eaton-equipped systems to maintain consistent protection and compatibility.
• New installations in panelboards and load centers that require a rugged, plug-in, molded-case solution.

Technical snapshot

• Manufacturer: Eaton
• Part number: BR310
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 10A
• Voltage rating: 240V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

With its fast installation, precise thermal-magnetic protection, and seamless compatibility with Eaton panelboards and load centers, the BR310 is a practical, lower-downtime choice for delivering dependable electrical protection in homes, small businesses, and light industrial environments. If you’re upgrading or replacing a breaker in an existing Eaton ecosystem, this 10A, 240V, 3-pole plug-in unit offers a straightforward, reliable path to continued, safe operation.