Eaton QC2045 - 45 A, 240 V, 2-Pole Circuit Breaker | AmpState

Meet the Eaton QC2045 — a dependable 45A, 240V, 2-pole molded case circuit breaker designed to shield your electrical system from overcurrent and short circuits. Built for use in panelboards and load centers, this unit delivers reliable protection where it matters most, from home subpanels to small commercial installations.

Why the QC2045 stands out

• Compact molded case design prioritizes efficient use of panel space, making it easier to fit into crowded enclosures and streamline installation.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance across varying loads and temperatures, helping prevent nuisance trips while ensuring rapid response to short circuits.
• 2-pole configuration for 240V circuits provides simultaneous protection on both hot legs, ideal for residential subpanels, multiwire branch circuits, and common 240V loads.
• OEM panel compatibility engineered to work with matching Eaton OEM load centers and panelboards, supporting straightforward retrofits and reliable fitment.
• Versatile for multiple settings suitable for residential, commercial, and light industrial applications where consistent overcurrent protection is essential.

Technical snapshot

• Manufacturer: Eaton
• Part Number: QC2045
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 45A
• Voltage Rating: 240V
• Poles: 2
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

• Protecting circuits in residential panelboards and subpanels where 240V loads are present, such as water heaters, HVAC equipment, or multiwire branch circuits.
• Upgrading or replacing aging breakers in existing Eaton-based systems to maintain consistent protection characteristics.
• Integrating into small commercial panels and light industrial setups that require reliable 2-pole protection with a compact footprint.

Installation and care highlights

Choose the QC2045 when you need predictable performance and straightforward compatibility with Eaton panel products. Ensure you pair it with the correct OEM load center or panelboard model to preserve labeling and coordinated protection. For long-term reliability, verify tight connections per panel manufacturer guidelines and keep the unit within its intended electrical and environmental operating range.

Practical value in one sentence

The Eaton QC2045 delivers precise 2-pole, 240V protection for critical 45A circuits, combining space-saving design, dependable thermal-magnetic protection, and seamless OEM compatibility to keep residential, commercial, and light industrial systems safe and compliant.