Eaton Cutler-Hammer BR320 20A 3P 240V Circuit Breaker, Plug-On | AmpState

The Eaton Cutler-Hammer BR320 20A 3P 240V Circuit Breaker, Plug-On, from AmpState, is built for everyday electrical protection in panelboards, load centers, and electrical distribution systems. Designed to mirror the original part, it’s the smart choice for reliable performance, precise BOM alignment, and quick, straightforward replacements.

What makes the BR320 stand out is how it combines exact compatibility with practical, real-world usage. This 3-pole, 20-amp breaker delivers solid protection for multi-wire branch circuits at 240V, enabling clean, coordinated protection across your distribution panel without compromising existing wiring or configurations.

• Plug-On mounting for fast, tool-free installation in compatible Eaton panelboards and load centers.
• Three-pole design provides balanced protection for multi-wire circuits and easier fault isolation in complex electrical distributions.
• 20 A, 240 V specification precisely matches typical residential, commercial, and light industrial protection needs.
• BOM-aligned replacement—nothing disruptive to your spare parts inventory: use the BR320 to stay consistent with the original equipment list.
• Stocking-ready option for maintenance inventories, minimizing downtime when a breaker replacement is required.
• Versatile application—suitable for panelboards, load centers, and general electrical distribution where Eaton Cutler-Hammer devices are specified.

Who it's for and practical use cases

Perfect for electrical contractors, facilities managers, and maintenance teams replacing aging breakers in existing Eaton installations. If you’re upgrading or stocking spares to match the original equipment, the BR320 ensures plug-and-play compatibility and consistent performance across your distribution network.

Compatibility and support

If you’re unsure about fit or compatibility with your specific panel, AmpState offers guidance to confirm the correct part number and fit. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

Availability note: BR320 is readily available from AmpState, making it a reliable option when you need a precise, original-equipment replacement to keep your electrical system running smoothly and in sync with the original design.