Eaton QB1020EP - 20 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Elevate the safety and reliability of your electrical infrastructure with the Eaton QB1020EP, a 20A, 120V, 1‑pole bolt‑on molded‑case circuit breaker. Sold through AmpState, this breaker is engineered to deliver consistent branch‑circuit protection in panelboards and load centers, even in demanding environments.

Why the QB1020EP stands out

• Secure bolt‑on mounting provides a rigid, vibration‑resistant bus connection—reducing loosened terminals and ensuring dependable trips when demand spikes or during movement vibrations.
• Thermal‑magnetic trip unit delivers stable, repeatable protection for both overloads and short circuits, maintaining reliable performance across varying temperatures and loads.
• OEM‑ready compatibility is designed to plug into matching Eaton load centers and panelboards, simplifying installation and ensuring proper coordination with the rest of your protection scheme.
• 1‑pole, 20A at 120V configuration is ideal for residential circuits, light commercial runs, and select equipment circuits where a single‑pole solution is appropriate.

Ideal use cases

• Residential branch circuits such as lighting, receptacles, and small appliance circuits where dependable protection is essential.
• Commercial or light industrial panelboards that require robust, time‑tested overcurrent and short‑circuit protection.
• Installations where vibration or movement is a factor, making a bolted connection advantageous for long‑term reliability.

Technical snapshot

• Manufacturer: Eaton
• Part number: QB1020EP
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage rating: 20A
• Voltage rating: 120V
• Number of poles: 1
• Mounting style: Bolt‑on
• Application: Branch circuit overcurrent and short‑circuit protection

Whether you’re upgrading an aging panel or specifying a replacement for a new build, the QB1020EP provides precise protection without unnecessary complexity. Its combination of secure mounting, reliable thermal‑magnetic protection, and OEM‑grade compatibility makes it a practical, long‑term choice for safeguarding electrical systems in a wide range of settings.