Square D QOB220 - 20A, 2-Pole, Circuit Breaker

The Square D QOB220 — a 20A, 2-Pole circuit breaker designed to deliver dependable overcurrent protection in demanding electrical environments. This compact device interrupsts both hot lines in a 240V circuit, providing safe, simultaneous shutdown for enhanced personnel safety and equipment protection in distribution panels and motor control centers.

Why the QOB220 stands out

• Two-pole design for balanced protection: By interrupting both hot conductors together, it minimizes backfeed risks and ensures a clean, safe disconnect during a fault.
• Precise 20A protection: The 20-amp rating is ideal for protecting branch circuits feeding lighting, receptacles, and small equipment without nuisance tripping.
• Built for reliability in tough environments: Engineered for industrial, commercial, and OEM applications where consistent performance and safe operation matter.
• Seamless integration with Square D systems: Works with standard panelboards, switchboards, and control panels, helping maintain system compatibility and simplified maintenance.

Ideal use cases

• Distribution panels in manufacturing plants and commercial facilities looking to safeguard circuits feeding motors, conveyors, or processing equipment.
• Motor control centers where dependable, quick-interrupt protection is essential to minimize downtime and protect starters and loads.
• OEM equipment enclosures requiring compact, reliable overcurrent protection that fits within existing space and wiring schemes.
• Retrofits or new installations in panelboards and control panels that demand a proven Square D solution with predictable behavior.

What problems it solves

• Prevents damage from overcurrent events by reliably interrupting fault currents at the source.
• Reduces downtime with a straightforward pull and reset for quick recovery after a fault.
• Improves safety by ensuring both hot legs are disconnected during a fault, preventing dangerous arcing paths.
• Supports straightforward maintenance and compatibility with existing Square D infrastructure, reducing integration risk.

Specifications at a glance

• Current rating: 20A
• Poles: 2-Pole
• Breaker type: Circuit Breaker

Installation and best-practice tips

• Use the QOB220 in compatible panelboards, switchboards, and control panels designed for Square D 2-pole devices to ensure proper fit and coordinated protection.
• Before installation, follow all standard electrical safety protocols: power down, verify absence of voltage, and use appropriate PPE.
• Match the breaker to the system this panel is designed to protect; avoid substituting a different current rating or pole count unless the panel’s documentation confirms compatibility.
• Label circuits clearly and keep documentation up to date so maintenance teams can quickly identify protected loads and callable limits during a fault.

In environments where dependable overcurrent protection is non-negotiable, the Square D QOB220 delivers a proven, practical solution for safeguarding distribution panels and motor control centers. Its 20A, 2-Pole configuration provides confident protection for essential circuits, helping facilities stay operational and safer for personnel. Order this reliable circuit breaker to align with your existing Square D infrastructure and enjoy consistent performance across industrial, commercial, and OEM applications.