Eaton QC3090H - 90 A, 4 V, 3-Pole Circuit Breaker | AmpState

Introducing the Eaton QC3090H — a 90A, 3-pole molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Its compact form factor frees up precious panel space while delivering robust protection where it matters most.

At the heart of the QC3090H is a thermal-magnetic trip unit. The thermal element provides stable overload protection with repeatable trip characteristics, while the magnetic element responds rapidly to short circuits, helping to minimize damage and downtime. This combination ensures reliable, predictable protection across a range of loads and conditions.

Designed for compatibility with matching OEM loadcenters and panelboards, the QC3090H is a dependable replacement or upgrade for Eaton systems and other compatible OEM configurations. Whether you’re wiring a home, a small business, or light industrial equipment, this 3-pole breaker delivers solid protection without unnecessary complexity.

Key features

• Compact molded-case design optimizes panel space, easing wiring and serviceability in tight installations.
• Thermal-magnetic trip unit provides stable, repeatable protection against overloads and short circuits.
• 3-pole configuration suited for protecting three-wire or three-phase circuits commonly found in panelboards and loadcenters.
• 90 A amperage rating offers strong protection for medium-load circuits in residential, commercial, and light industrial settings.
• OEM-compatible engineered to fit matching Eaton OEM loadcenters and panelboards for straightforward replacement.
• Application focus reliable branch circuit overcurrent and short-circuit protection to prevent nuisance trips and electrical faults.

Technical snapshot

• Manufacturer: Eaton
• Part Number: QC3090H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 90A
• Voltage rating: 4V
• Poles: 3
• Application: Branch circuit protection for overcurrent and short circuits

Ideal for upgrading crowded panels, protecting commercial lighting and HVAC circuits, or safeguarding small industrial equipment, the QC3090H provides precise, reliable protection in a compact footprint. Its compatibility with OEM loadcenters simplifies installation and enhances system safety, making it a practical choice for professional electrical projects.

Pro tips: confirm panelboard compatibility with your specific model, adhere to manufacturer torque recommendations for terminals, and always follow proper lockout/tagout procedures during installation.