Eaton QBHW2125 - 125 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Eaton QBHW2125 — a 125A, 240V, 2-pole bolt-on molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for reliability, it integrates seamlessly into both new installations and upgrades, keeping electrical systems safe and compliant.

• Secure bolt-on mounting: provides a rigid, vibration-resistant bus connection that stays seated through everyday operation and routine panel maintenance.
• Thermal-magnetic trip unit: combines precise thermal overload protection with instantaneous magnetic trip response for rapid short-circuit containment.
• OEM-compatible design: engineered to work with matching OEM loadcenters and panelboards, ensuring a proper fit, predictable performance, and straightforward replacement.
• Versatile for multiple environments: suitable for residential, commercial, and light industrial electrical distributions where dependable protection is essential.

Technical specifications

• Manufacturer: Eaton
• Part Number: QBHW2125
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 125A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why this breaker stands out

The QBHW2125 isn’t just another breaker. Its bolt-on design minimizes bus connection looseness and vibration, translating to consistent protection even in busy electrical panels or installations subject to movement. The thermal-magnetic trip mechanism responds predictably to rising temperatures and sudden fault currents alike, helping prevent nuisance trips while still delivering instantaneous protection when it matters most. With compatibility built in for Eaton and other OEM panel systems, you gain a reliable, maintenance-friendly component that reduces installation time and ensures long-term performance.

Ideal use cases

• Residential service panels that require robust, space-efficient protection for critical circuits
• Commercial distribution boards and light industrial panels where dependable short-circuit protection is essential
• Retrofits or upgrades in existing panelboards needing a proven, compatible 2-pole solution

For builders, electricians, and facility managers seeking a trustworthy, easy-to-install 125A, 240V circuit breaker that harmonizes with standard panel ecosystems, the Eaton QBHW2125 delivers clear advantages — solid protection, reliable operation, and compatibility you can count on.