Eaton BR345 - 45 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Eaton BR345—a 45A, 240V, 3-pole plug-in molded case circuit breaker designed to guard your electrical system from overloads and short circuits. Built for fast, secure installation in panelboards and load centers, this unit is a dependable choice for residential, commercial, and light industrial applications. Available from AmpState, it’s ready to install when you need reliable power protection.

• Fast plug-in connection enables quick installation and hassle-free replacement, reducing downtime during upgrades or maintenance.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both sustained overloads and sudden faults, helping prevent nuisance trips and equipment damage.
• Three-pole design ensures simultaneous disconnection of all three phases, which is crucial for balanced 240V circuits and motor-driven loads.
• OEM compatibility designed to pair with matching OEM load centers and panelboards for a seamless, code-compliant fit.
• Versatile for multiple sectors ideal for residential, commercial, and light industrial environments where reliable branch circuit protection matters.

Technical snapshot: Eaton BR345, 45A, 240V, 3-pole, plug-in molded case circuit breaker. Type: Thermal-magnetic molded case. Mounting style: Plug-in. Part Number: BR345.

Why the BR345 stands out

More than just its specs, the BR345 is built for installers who value speed, reliability, and longevity. The plug-in format minimizes wiring complexity and reduces the risk of loose connections, while the thermal-magnetic trip unit provides predictable protection aligned with your load profile. This combination translates to fewer interruptions and greater peace of mind for the people and equipment you’re protecting.

Ideal use cases

In homes, use the BR345 for large appliance circuits or multi-wire branch circuits that require solid 240V protection. In commercial settings, it powers motor-driven equipment, HVAC control circuits, lighting panels, and other distribution needs. In light industrial environments, it offers dependable protection for distribution panels where quick replacement and minimal downtime are priorities.

Installation tips and best practices

• Confirm panelboard compatibility with BR-series plug-in breakers to ensure an optimal, secure fit.
• Match the amperage rating (45A) to your circuit’s load calculations to maintain safety and performance.
• Keep a spare BR345 on hand for rapid swaps during maintenance or panel updates.

With its combination of rapid installation, precise thermal-magnetic protection, and OEM-compatible design, the Eaton BR345 is a practical, high-value choice for safeguarding 240V, three-pole circuits. Trust AmpState to provide a trustworthy source for this essential component of your electrical system.