Eaton Cutler-Hammer BR320ST 20A 3P 240V Circuit Breaker, Type BR, Plug-On, Shunt Trip | AmpState

The Eaton Cutler-Hammer BR320ST is a purpose-built, three-pole circuit breaker designed to protect electrical distribution systems with precision and reliability. Built for everyday panelwork, this 20 A, 240 V device fits straight into BR-type panelboards and load centers, delivering solid protection where it matters most. The BR320ST isn’t just a breaker—it’s a smart, maintainable solution for teams that need dependable parts with a direct fit.

Key features that matter in the field

• Type BR, Plug-On design: Fast, tool-free installation into compatible distribution panels for streamlined maintenance and upgrades.
• Three-pole configuration: Provides balanced protection across all phases in 240 V systems, reducing the risk of imbalanced loads.
• 20 A rating: Ideal for general circuit protection in commercial and light industrial applications where reliable fault interruption is essential.
• Shunt Trip: Remote-trip capability adds an extra layer of safety, enabling controlled shutdown from a separate control or safety system when required.
• Part Number BR320ST: Clear, direct part-number matching ensures you get the exact device you need for a precise fit and compatibility.

Why this breaker stands out

In busy maintenance environments, compatibility and speed matter. The BR320ST is specifically chosen for its plug-on compatibility with BR-type panels, which minimizes downtime during service calls and panel upgrades. The shunt-trip feature is a practical safety enhancement for facilities that require remote or automatic disconnection in response to alarms, interlocks, or control signals. With a robust three-pole design, it handles the demands of 240-volt distribution without compromising protection, giving technicians peace of mind that the circuit will trip cleanly when a fault or safety condition arises.

Ideal use cases

• Panelboard and load center deployments in commercial buildings, data centers, and light industrial setups.
• Remote safety strategies where a control system must trigger an immediate shutdown of specific circuits.
• Spare inventory for maintenance teams and panel builders who need a reliable, order-ready part with a direct fit.

Practical considerations

When selecting the BR320ST, verify that your panel supports Type BR breakers and that the application calls for a 3-pole 20 A 240 V device. The plug-on design simplifies installation, while the shunt-trip option provides optional remote disconnection capabilities. This part is readily available through AmpState, making it easy to source the exact device you need without guesswork.

What you get

• One Eaton Cutler-Hammer BR320ST 20 A 3P 240 V Circuit Breaker
• Shunt-trip capability for remote disconnection scenarios
• Direct compatibility with BR-type panelboards and distribution assemblies

Ready to secure your electrical distribution with a trusted, exact-match part? The BR320ST from Eaton Cutler-Hammer, available from AmpState, is designed for installers and maintenance teams who demand precise fit, reliable protection, and thoughtful safety features in one compact breaker.