Square D | QOB320SWN | Circuit Breaker | 20A | 3-Pole | Bolt-On

Meet the Square D QOB320SWN circuit breaker—your precise, reliable protection for 3-phase electrical systems. Engineered as a 20A, 3-Pole bolt-on unit, this breaker is built to meet the exacting standards of Square D panels and distribution boards, making it a dependable choice for maintenance, retrofit, and replacement projects where exact specs matter.

• Amperage: 20 A
• Poles: 3-Pole
• Mounting: Bolt-On
• Part reference: QOB320SWN (the best compatibility identifier)

Why this specific breaker stands out:

• Exact spec alignment—Designed to slot into compatible Square D panels without modification, preserving panel integrity and safety clearances.
• 3-Pole protection—Ideal for 3-phase circuits and motor-control applications where balanced protection across all phases is essential.
• Bolt-On reliability—Solid, vibration-resistant mounting that resists loosening in industrial environments and panel enclosures.
• Clear fit guidance—Part number QOB320SWN serves as the most reliable reference for compatibility, helping you avoid mismatches during ordering.

Ideal use scenarios:

• Maintenance or retrofits in existing Square D panels that require exact 3-pole, 20A protection.
• Replacement of aging breakers in 3-phase motor feeds, conveyors, or process lines where consistent trip characteristics are essential.
• Panel upgrades where a compact, bolt-on solution minimizes downtime and wiring modifications.

Practical notes to ensure a smooth installation:

• Confirm fit and ratings before ordering to guarantee compatibility with your panel model and service requirements.
• Follow standard electrical best practices for safe installation, including de-energizing the panel and securing the breaker with the appropriate torque guidelines.
• Keep the original part reference handy—QOB320SWN is the most reliable indicator of compatibility for this unit.

When you need a dependable, precisely specified 3-pole breaker for 20A circuits, the Square D QOB320SWN delivers predictable protection, solid mounting, and seamless compatibility with established Square D panels. Add it to your order to ensure you have the exact replacement or retrofit part you require for durable, consistent electrical performance.