Square D QOB120EPD - 20A, 1-Pole, Circuit Breaker

The Square D QOB120EPD delivers dependable overcurrent protection in a compact, single-pole design, perfectly suited for the demanding environments of industrial, commercial, and OEM installations. With a clear 20A rating, this breaker provides precise protection for single‑phase circuits, helping keep distribution panels, switchboards, and control panels safe and compliant.

Designed for flexible use in critical electrical systems, the QOB120EPD is a 1‑pole circuit breaker that fits where space and simplicity matter most. It supports reliable operation in distribution panels and motor control centers, enabling quick, safe responses to electrical faults and preventing damage to wiring, devices, and downstream equipment.

Why this model stands out

• 20A, 1‑Pole configuration—ideal for protecting single‑phase branch circuits without adding unnecessary complexity.
• Purpose‑built for protection—a fundamental component in maintaining safe operation across panelboards, switchboards, and control panels.
• OEM-ready reliability—designed for industrial and commercial settings where consistent performance and dependable protection are critical.
• Targets practical problems—reduces risk of overcurrents that can lead to equipment damage, nuisance trips, and unplanned downtime.

Specifications at a glance

• Current rating: 20A
• Poles: 1-Pole
• Breaker type: Circuit Breaker

Ideal use scenarios

• Industrial control panels where single‑phase loads need reliable protection.
• Commercial power distribution where compact, straightforward overcurrent protection is required.
• OEM equipment enclosures needing a dependable 20A, single‑pole protection device.
• Motor control centers and associated distribution networks that demand safe, predictable trips.

Practical considerations and tips

• Verify compatibility with your existing panel or board layout to ensure a seamless fit and easy replacement.
• Use in applications where single‑pole protection best suits the circuit topology and wiring scheme.
• For ongoing reliability, pair with properly rated conductors and enclosure protection to maintain safe operating margins.