Square D QOB210 - 10 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D QOB210, a purpose-built 2-pole, 10A, 240V bolt-on molded case circuit breaker designed to deliver reliable branch-circuit protection for panelboards and load centers. Built for consistent performance in everyday electrical installations, this unit pairs a rugged mounting solution with precise protection to keep circuits safe and stable.

• Secure bolt-on mounting — provides a rigid, vibration-resistant bus connection that stays tight in demanding environments, reducing the risk of loose connections and nuisance trips.
• Thermal-magnetic trip unit — combines thermal overload protection with instantaneous magnetic trip for short-circuit events, delivering repeatable, dependable protection across a wide range of operating conditions.
• 2-pole, 240V operation — ideal for protecting 240V branch circuits in residential, commercial, and light industrial settings requiring reliable dual-pole switching.
• OEM-compatible design — engineered to be compatible with matching Square D OEM load centers and panelboards, ensuring a seamless, plug-in performance when used in the right system.
• Compact, molded-case construction — durable, space-conscious protection that’s designed to fit neatly into panelboards and load centers without sacrificing performance.

What this breaker is designed to do

The QOB210 provides robust protection for branch circuits where a 10A current at 240V needs to be safeguarded against both overcurrent and short circuits. By using a thermal-magnetic trip mechanism, it offers stable trip characteristics across temperature variations, so protection behavior remains predictable—from cold starts to peak-load days.

Ideal use cases

• Residential panelboards where a dedicated 240V circuit requires precise, reliable 10A protection.
• Commercial and light industrial applications with 240V circuits for control gear, lighting, or small equipment where a compact, bolt-on breaker is advantageous.
• Repairs or upgrades in existing systems that use compatible OEM load centers and panelboards, helping ensure consistent performance with the rest of the protection scheme.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: QOB210
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 10A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical considerations and tips

When selecting this breaker, verify that your panelboard or load center is designed to accept bolt-on, 2-pole, 240V units in the QOB family. Ensure proper torque on mounting screws to maintain a solid electrical connection, and pair with compatible OEM components for optimal performance. This unit is a precise fit for installations where space is at a premium and dependable protection is non-negotiable.

Choose the Square D QOB210 for a dependable, industry-standard solution that delivers real-world protection for 240V circuits while maintaining a streamlined, installer-friendly experience in panelboards and load centers.