Square D QGA221504 - 150 A, 2-Pole Plug-In Circuit Breaker | AmpState

The Square D QGA221504 is a 150 A, 2-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Built for fast installation and straightforward replacement, this breaker keeps downtime to a minimum while maintaining robust safety for your electrical system.

• Plug-in connection provides quick, tool-free installation and easy replacement in existing panels, helping you service or upgrade without a full panel teardown.
• 150 A, 2-pole protection covers two hot legs, making it suitable for main feeders or branch circuits that require strong, reliable short-circuit and overcurrent protection.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal overload sensing with magnetic instantaneous tripping for rapid response to short circuits.
• Molded case design offers a compact, durable footprint that integrates neatly into standard panelboards and loadcenters, minimizing space concerns in crowded electrical enclosures.
• OEM-compatible engineered to match Square D OEM load centers and panelboards, ensuring proper fit, contact integrity, and consistent trip characteristics.
• Versatile applications ideal for residential, commercial, and light industrial electrical systems needing reliable protection for feeders, circuits, and subpanels.

The QGA221504 is the practical choice when you need a dependable, long-lasting solution for protecting electrical infrastructure. It helps prevent costly damage from overcurrent and short circuits, while its plug-in design minimizes installation time and downtime during maintenance or panel upgrades. Use it to safeguard critical circuits in homes, offices, small shops, and light industrial environments where consistent performance matters.

Technical snapshot

• Manufacturer: Square D
• Part Number: QGA221504
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 150 A
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Available from AmpState, the Square D QGA221504 is a reliable, installer-friendly solution that aligns with standard electrical panels and delivers consistent protection where it’s needed most.