Square D QOB240EPD - 40 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D QOB240EPD — a dependable 40A, 240V, 2-pole bolt-on molded-case circuit breaker designed to protect your electrical system where it matters most. Built for panelboards and loadcenters, this breaker delivers consistent, reliable protection for everyday residential, commercial, and light industrial circuits.

• Secure bolt-on mounting creates a rigid, vibration-resistant bus connection that stays put in demanding environments.
• Thermal-magnetic trip unit provides stable, repeatable protection performance, responding quickly to overloads and short circuits while minimizing nuisance trips.
• OEM-compatible design with matching loadcenters and panelboards makes replacement and upgrades straightforward and hassle-free.
• Versatile application ideal for branch circuit overcurrent and short-circuit protection across residential, commercial, and light industrial settings.

Technical snapshot

• Manufacturer: Square D
• Part Number: QOB240EPD
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why choose the QOB240EPD for your panel? It’s designed to deliver reliable protection where space and reliability matter. The bolt-on design ensures a solid connection in panels that experience vibration or frequent load changes, reducing the risk of loose contacts that can lead to tracing faults. The thermal-magnetic trip mechanism balances speed and selectivity, helping safeguard wiring, devices, and occupants without overshooting protection.

Use case scenarios

• Residential subpanels feeding living spaces, kitchens, and HVAC circuits where stable protection is essential.
• Commercial panels powering lighting, outlets, and small motors in offices, retail spaces, or service areas.
• Light industrial setups with moderately demanding equipment, ensuring quick clearance of faults while maintaining service continuity.

When selecting a breaker, consider compatibility with your current OEM panel or loadcenter. The QOB240EPD is engineered to align with matching Square D panel systems, delivering seamless integration and dependable performance when you need it most.