Eaton BR120ST - 20 A, 240 V, 1-Pole Plug-In Circuit Breaker | AmpState

Eaton BR120ST is a 1-pole, 20A, 240V plug-in molded case circuit breaker engineered to safeguard your branch circuits from overcurrent and short-circuit faults. Designed for fast, reliable protection in panelboards and loadcenters, this breaker combines an intuitive plug-in installation with precise, repeatable trip performance.

• Fast plug-in connection enables quick installation and straightforward replacement, reducing panel downtime and labor.
• Thermal-magnetic trip unit delivers stable and repeatable protection across a range of fault conditions, helping prevent nuisance trips and equipment damage.
• OEM-compatible design ready to integrate with matching OEM loadcenters and panelboards for a seamless, worry-free upgrade or service replacement.
• Versatile application suitable for residential, commercial, and light industrial environments where dependable branch circuit protection is required.
• Molded case, 1-pole construction with a 20A, 240V rating, purpose-built for standard panel configurations and straightforward field servicing.

Technical specifications

• Manufacturer: Eaton
• Part Number: BR120ST
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 20A
• Voltage Rating: 240V
• Number of Poles: 1
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Who benefits from the BR120ST?

Electricians, facilities managers, and homeowners upgrading or maintaining panelboards will appreciate a solution that pairs ease of installation with dependable protection. It’s an ideal choice when upgrading older panels, expanding circuits in living spaces, or equipping light commercial spaces with a reliable 1-pole breaker that fits standard Eaton-compatible panels.

Why this model stands out

• Speed and simplicity—quick plug-in connection minimizes installation time and device downtime.
• Reliable protection—thermal-magnetic trip technology provides precise response to overcurrent and short circuits, supporting safer operating conditions.
• Designed for compatibility—specifically engineered to work with matching OEM panelboards and loadcenters, ensuring cohesive performance in existing systems.

Practical tips and use cases

Use the BR120ST in standard residential panels for individual branch circuits or in light commercial setups where 20A, 240V protection is required. It’s well-suited for quick replacements in Eaton-based systems, minimizing downtime during service or upgrades. When installing, ensure the panel is de-energized and the breaker is seated firmly in its slot to maintain proper contact and protection performance.