Eaton QC3045H - 45 A, 240 V, 3-Pole Circuit Breaker | AmpState

The Eaton QC3045H is a reliable 45A, 240V, 3-pole molded case circuit breaker designed to protect your most critical electrical circuits. Built for durability and consistent performance, it serves as the essential line of defense against overcurrent and short circuits in panelboards and load centers.

Why the QC3045H stands out

• Space-efficient, molded case design — optimized for tight panel layouts, helping you maximize usable space without sacrificing protection.
• Thermal-magnetic trip unit — delivers stable, repeatable protection across a wide range of loads and ambient conditions, reducing nuisance trips and enhancing reliability.
• OEM-compatible versatility — engineered to drop into matching Eaton OEM load centers and panelboards, ensuring a seamless, code-compliant fit.
• Three-pole protection — ideal for 240V circuits and multi-phase systems in residential, commercial, and light industrial settings, providing comprehensive branch circuit coverage.

Key specifications at a glance

• Manufacturer: Eaton
• Part number: QC3045H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 45A
• Voltage rating: 240V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal uses and scenarios

• Upgrading or replacing a failed breaker in residential subpanels or main distribution panels where 240V, 3-pole protection is required.
• Protecting multi-wire branch circuits and essential equipment in light commercial spaces, small offices, and retail environments.
• Implementing dependable protection for small industrial circuits that run on 240V, ensuring quick response to overloads and short circuits.
• Situations where OEM compatibility matters—you’ll benefit from a drop-in fit with matching panelboards and load centers designed for Eaton components.

Installation and practical considerations

For best results, verify that the panelboard or load center is designed to accept Eaton QC-series breakers. Ensure proper alignment with the bus connections and follow general safe installation practices, including correct torque on terminals and adherence to local electrical codes. The QC3045H is built to provide a reliable, long-term protection strategy for your 240V circuits, helping prevent electrical damage and supporting safer, more efficient electrical systems.

Choose the Eaton QC3045H 45A, 240V, 3-pole molded case circuit breaker for a trustworthy, OEM-compatible solution that favors space efficiency, predictable protection, and broad applicability—from homes to light commercial sites. Sold by AmpState, it’s a dependable choice when you need durable branch circuit protection with a fit-and-forget reliability you can count on.