Square D | Q4L2300 | Circuit Breaker | 300A | 2-Pole | 240V

Square D Q4L2300 Circuit Breaker is a robust, two‑pole protective device designed for demanding 240V circuits. With a 300A rating, this unit provides dependable overcurrent protection for large feeders, heavy equipment, and critical loads within commercial or industrial panels. Ideal for maintenance, retrofit, and replacement projects, the Q4L2300 helps you keep systems running safely and with minimal downtime.

Key specifications at a glance:

• Amperage: 300A
• Pole configuration: 2‑Pole
• Voltage: 240V

Why choose the Square D Q4L2300 for your project?

• The part number Q4L2300 is your best reference to match specifications and fit. Always verify fit and ratings before ordering to ensure seamless replacement in your panel.
• The 2‑pole design ensures both hot legs are disconnected together, delivering consistent protection for feeding circuits and large loads.
• Designed to slot into existing Square D installations, making it a practical choice when upgrading or renewing aging breakers without changing the panel hardware.
• Well-suited for service entrances, subpanel feeders, large equipment feeds, and other high‑current applications where a compact, two‑pole 240V breaker is required.

How to ensure a proper fit and safe installation

• Before purchase, confirm fit and ratings using the part number Q4L2300 and your panel labeling to avoid mismatches.
• Verify that your application truly requires a 300A, 2‑pole, 240V device to protect the intended circuit and load.
• Follow best practices for electrical work: de-energize the panel, use appropriate PPE, and consult a licensed electrician if you’re unsure about compatibility or installation procedures.

Choosing the Square D Q4L2300 means leaning on a trusted, purpose-built solution for heavy‑duty, 240V protection. It’s not just a replacement part—it’s a strategic upgrade for reliability, safety, and long‑term panel performance in demanding environments.