Square D QOB250SWN1021 50A 2-Pole 120 V Circuit Breaker

Meet the Square D QOB250SWN1021 — a purpose-built 50A, 2-pole 120 V circuit breaker designed to deliver dependable overcurrent protection in Square D electrical panels. With a precise 50-amp rating and a robust two-pole configuration, this breaker is built to safeguard high-demand circuits while keeping your system compliant with standard residential and light commercial setups.

• Model and specs: Part Number QOB250SWN1021, 50 A, 2-pole, 120 V.
• Designed for Square D panels: Compatibility with the QOB-series breaker mounting ensures reliable fit and predictable performance within compatible Square D enclosures.
• Two-pole protection: Simultaneous interruption of both hot legs provides effective safeguarding for 240 V circuits and two-hot-line loads.
• dependable protection mechanism: Engineered to respond quickly to overloads and short circuits, helping prevent damage to connected equipment and wiring.
• installation reliability: Built for secure connection in standard panel bus setups with straightforward installation and removal for service or replacement.

This breaker is an ideal choice for wiring scenarios that demand a solid 50-amp protection point on 120-volt delivery, such as high-draw appliances, workshop circuits, or dedicated 240 V loads that require protection on both legs. By selecting a genuine Square D QOB-series breaker, you ensure consistent trip characteristics, alignment with panel labeling, and long-term reliability that’s backed by the Square D engineering legacy.

Who should consider this model? electricians stocking spare parts, homeowners upgrading aging panel protection, or facility managers seeking a dependable, code-compliant solution for larger circuits. When you need a replacement that matches the exact form factor and performance of your existing QOB setup, the QOB250SWN1021 delivers a precise, compatible fit and clear, actionable protection for your electrical system.

Tips for optimal use: verify panel compatibility with QOB breakers before installation, shut off main power before servicing, and tighten terminals to recommended torque specifications to maintain a secure, reliable connection. With its clear part identity (QOB250SWN1021) and 50A, 2-pole, 120 V rating, this breaker helps you protect critical circuits while keeping maintenance straightforward and predictable.