Square D QO2401021 - 40 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D QO2401021 from AmpState — a dependable 40A, 240V, 2-pole plug-in molded case circuit breaker engineered to safeguard your electrical system with precision and ease. Built for quick installs and reliable protection, it fits seamlessly into your panelboard or load center, helping you maintain safe, uninterrupted power delivery.

• Fast plug-in connection for quick installation and effortless replacement, minimizing downtime during upgrades or maintenance.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance across load conditions, reducing nuisance trips and ensuring predictable circuit behavior.
• OEM-compatible design is built to work with matching Square D load centers and panelboards, ensuring straightforward interoperability and trusted performance.
• Versatile deployment suitable for residential, commercial, and light industrial environments where reliable branch circuit protection is essential.

Technical details at a glance

• Manufacturer: Square D
• Part Number: QO2401021
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Why this breaker stands out

The QO2401021 combines a compact molded case design with a robust thermal-magnetic trip mechanism, delivering reliable protection for the circuits you rely on daily. Its plug-in format makes replacements or upgrades straightforward, so you can keep your electrical system up to date without extended downtime. Because it’s designed to be compatible with Square D OEM panelboards and load centers, you gain predictable performance and straightforward serviceability, backed by Square D’s trusted engineering pedigree.

Ideal use cases

• Upgrading or replacing a failing 2-pole breaker in compatible Square D panelboards and load centers
• Protecting 240V branch circuits in residential subpanels or light commercial installations
• Routine electrical safety upgrades in homes, offices, or small warehouses where dependable overcurrent protection is required

With the Square D QO2401021, you get a purpose-built, plug-in solution that pairs precise thermal-magnetic protection with quick installation—delivering peace of mind for technicians and steady, safe power for occupants. Trust AmpState to provide components that align with your electrical design and performance expectations.