Eaton QBHW2090 - 90 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Eaton QBHW2090 is a rugged, 2-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a 90 A rating at 240 V, it provides solid protection for residential, commercial, and light industrial installations without compromising space or reliability.

Why this breaker stands out

• Secure bolt-on mounting: Engineered for a rigid, vibration-resistant bus connection, reducing movement that can lead to loose connections or nuisance trips in busy electrical environments.
• Thermal-magnetic trip unit: Combines stable, repeatable protection performance for both sustained overloads and instantaneous short circuits, helping to protect wiring and devices without unnecessary interruptions.
• OEM-ready compatibility: Designed to align with matching OEM load centers and panelboards, ensuring a consistent fit and reliable operation within existing electrical systems.
• Versatile application: Suitable for a wide range of settings—from home electrical panels to small commercial circuits and light industrial panels—where dependable protection is essential.

Real-world use cases

Use the QBHW2090 when you need a robust 90 A, 240 V protection solution in a panelboard or loadcenter. It’s an excellent upgrade or replacement choice for subpanels feeding heavy appliances, motor loads, or multi-wire branch circuits where consistent trip performance and secure mounting matter most. Its bolt-on design helps ensure a solid electrical connection in environments with vibration or frequent door openings, such as workshop subpanels or service enclosures in busy facilities.

Who should consider this breaker

• Electrical professionals building or upgrading residential subpanels, commercial subpanels, or light industrial panels seeking reliable 2-pole protection.
• Installers replacing a worn or failed breaker in Eaton-compatible panelboards and loadcenters who need a like-for-like, OEM-compatible unit.
• Property maintenance teams looking for a durable, vibration-resistant solution that minimizes nuisance trips and maintains stable protection over time.

Key specifications at a glance

• Manufacturer: Eaton
• Part number: QBHW2090
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 90 A
• Voltage rating: 240 V
• Number of poles: 2
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical tips for best results

To maximize performance, ensure you pair the QBHW2090 with a matching OEM load center or panelboard designed for bolt-on breakers. Verify that the overall system voltage and the connected load align with the 240 V, 90 A specifications. If you’re replacing an existing breaker, confirm the physical mounting footprint and bus connection compatibility to avoid misfits or installation delays. By choosing a bolt-on solution with a thermal-magnetic trip unit, you gain predictable protection behavior across a range of operating temperatures and fault conditions.