Eaton QCR2045 - 45 A, 240 V, 2-Pole Circuit Breaker | AmpState

Meet the Eaton QCR2045 — a 45A, 240V, 2-pole molded case circuit breaker built to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Its compact, molded-case design maximizes panel space while delivering precise protection for a wide range of electrical installations.

Smart protection you can trust

The QCR2045 uses a thermal-magnetic trip unit to provide stable, repeatable protection. The thermal element reacts to sustained overloads, while the magnetic element delivers a fast response to high-current short circuits. This combination reduces nuisance trips on normal inrush loads and ensures rapid disconnection when faults occur, helping safeguard wiring, devices, and occupants.

Key features that set it apart

• Compact molded case design saves panel space and simplifies installation in cramped or crowded panels.
• Thermal-magnetic trip for reliable protection with predictable trip characteristics.
• 2-pole, 240V configuration suitable for typical multiwire circuits and 2-wire plus neutral layouts in many panelboards.
• 45A rating provides robust protection for branch circuits feeding equipment, outlets, or lighting loads.
• OEM-compatible designed to pair with matching Eaton OEM loadcenters and panelboards for a seamless, consistent protection system.

Ideal use cases

• Upgrading aging or undersized breakers in residential panels to improve protection and safety for branch circuits.
• Installing in new or retrofit panelboards where space is at a premium without compromising protection.
• Providing reliable protection for commercial lighting, outlets, or equipment in light industrial environments.
• Replacing damaged or worn breakers while maintaining compatibility with Eaton’s panel ecosystems for consistent trip performance.

Why this breaker matters in your electrical system

Choosing the QCR2045 means prioritizing reliable protection that aligns with your panel design. The 2-pole, 45A, 240V configuration is ideal for circuits that require robust protection without unnecessary downtime from nuisance trips. Its compatibility with matching OEM loadcenters and panelboards minimizes installation guesswork and helps maintain a cohesive safety strategy across your electrical infrastructure.

Technical snapshot

• Manufacturer: Eaton
• Part number: QCR2045
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 45A
• Voltage rating: 240V
• Poles: 2
• Application: Branch circuit overcurrent and short-circuit protection

For electricians, property managers, and building owners prioritizing reliable protection with efficient panel layout, the Eaton QCR2045 delivers precise trip performance, space-conscious design, and seamless compatibility within Eaton’s panel ecosystem. It’s a practical, durable choice for safeguarding electrical systems in homes, commercial spaces, and light industrial settings.