Square D QDA221502 - 150 A, 2-Pole Plug-In Circuit Breaker | AmpState

Square D QDA221502 is a 150A, 2-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Built to handle everyday electrical loads with precision, it protects wiring and connected devices from overcurrent and short circuits while keeping installation simple and scalable.

Key features that matter in real-world installations:

• Fast plug-in connection: Quick installation and effortless field replacement, reducing downtime when maintenance or upgrades are needed.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by combining a thermal element for overload sensing with a magnetic mechanism for instantaneous short-circuit tripping.
• Compatibility with matching OEM load centers: Specifically designed to fit and operate reliably with Square D panelboards and load centers, ensuring a secure, cohesive protection system.
• 2-pole, 150A design: Ideal for two-pole 240V circuits and diverse residential, commercial, and light industrial applications where robust branch-circuit protection is required.
• Versatile protection for a range of environments: Ready to safeguard circuits in homes, small-to-medium commercial spaces, and light industrial setups.

Technical snapshot:

• Manufacturer: Square D
• Part Number: QDA221502
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 150A
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases and benefits:

• Upgrade or replace aging breakers in existing panelboards to restore reliable protection with a plug-in, field-friendly solution.
• Install in new residential or light commercial projects where quick, serviceable protection is valued and compatible Square D load centers are used.
• Maintain consistent protection across multiple circuits by standardizing on a single, dependable 2-pole 150A device designed for modular panel configurations.

When you need a dependable, easy-to-install circuit breaker that aligns with your Square D panel architecture, the QDA221502 from AmpState provides a cohesive, durable solution. Its plug-in design and thermal-magnetic protection make it a practical choice for safeguarding critical circuits while simplifying installation and future maintenance.