Eaton QBHW3090H 90 A 3-Pole Bolt-On Circuit Breaker

Meet the Eaton QBHW3090H—the 90A, 240V, 3-pole bolt-on molded case circuit breaker built for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. This is not just a component; it’s a sturdy safeguard designed to keep commercial and residential electrical systems operating smoothly, even under demanding conditions.

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, reducing movement and maintaining consistent electrical contact in environments with equipment vibration or shifting loads.
• Thermal-magnetic trip unit delivers stable overload protection with an instantaneous magnetic trip for short circuits, ensuring predictable performance during motor starts and fault events.
• 3-pole design disconnects all three phases simultaneously, preventing dangerous phase-to-phase faults and ensuring safe shutdown in 3-phase systems.
• OEM-compatible engineered to work with matching Eaton OEM loadcenters and panelboards, guaranteeing proper fit, coordination, and long-term reliability.
• Versatile applications ideal for residential, commercial, and light industrial installations that require reliable 90A protection at 240V.

Technical snapshot

• Manufacturer: Eaton
• Part Number: QBHW3090H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 90 A
• Voltage Rating: 240 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why this breaker fits your project

For new builds or panel upgrades, the QBHW3090H provides a robust 3-phase protection solution that aligns with Eaton’s panelboard ecosystem. The bolt-on design offers a more rigid connection to the bus, which helps resist loosening in environments with vibration or temperature cycling—translating to fewer unexpected trips and greater peace of mind.

This breaker is specifically engineered to pair with matching OEM panelboards and loadcenters, ensuring electrical coordination and seamless compatibility from the moment of installation. Whether you’re outfitting a commercial space, a light industrial setup, or a well-appointed residence with three-phase distribution, the QBHW3090H delivers dependable protection without compromising accessibility or serviceability.

Practical insights and tips: Always verify the panelboard compatibility with Eaton’s OEM equipment and follow torque specifications during mounting to maintain optimal bus engagement. Use this 3-pole solution when your system requires simultaneous disconnection of all phases, safeguarding both people and equipment in the event of a fault.