QDA221751 - 175 Amp Circuit Breaker

QDA221751 - 175 Amp Circuit Breaker

If you're responsible for keeping electrical systems running safely and efficiently, you already know that one weak breaker can cause big problems. The QDA221751 PowerPacT Q circuit breaker is built to take that worry off your plate—delivering dependable overcurrent protection where it matters most. Designed for 240VAC distribution systems, this 175 amp, 2-pole breaker combines proven thermal-magnetic protection with a practical, installer-friendly design. It reacts quickly to overloads and short circuits, helping prevent equipment damage and costly downtime. And with a 25kA interrupting rating, it's more than capable of handling serious fault conditions in commercial and industrial environments. What makes this breaker especially appealing in the field is its I-Line mounting system, which simplifies installation and helps save time inside the panel. Add in the push-to-trip button for quick testing, and you've got a breaker that doesn't just protect—it makes maintenance easier too. Whether you're upgrading existing gear or building out a new system, the QDA221751 is a solid, no-nonsense choice that professionals rely on every day.

Key Features and Benefits

• Smart, Reliable Protection – Thermal-magnetic trip responds accurately to both overloads and short circuits
• Handles High Fault Currents – 25kA interrupting rating gives you confidence in demanding environments
• 175 Amp Capacity – Built for consistent performance in commercial and industrial loads
• Faster Installation with I-Line Design – Helps reduce labor time and simplifies panel integration
• Built-In Push-to-Trip Button – Makes testing and maintenance quick and straightforward
• Made for Real-World Use – Designed to perform reliably through repeated operation cycles
• HACR Rated – Suitable for HVAC and refrigeration systems

Technical Specifications

• Catalog Number: QDA221751
• Product Line: PowerPacT Q
• Amperage: 175A
• Poles: 2 Pole
• Voltage: 240VAC (50/60 Hz)
• Interrupting Rating: 25kA at 120/208V AC and 240V AC
• Trip Type: Thermal-Magnetic
• Magnetic Trip Level: 2400A
• Continuous Rating: 80%
• Connections: I-Line (line), mechanical lugs (load)
• Phase: AB
• Dimensions: 6.47" H x 3" W x 3.93" D
• Durability: Up to 1,000 loaded cycles / 5,000 no-load cycles

Material Compliance and Certifications

This breaker is built to meet strict safety and performance standards, including:

• UL Listed
• CSA Certified
• NOM Compliant
• IEC Certified
• Meets NEMA standards
• That means you're not just getting performance—you're getting equipment that meets recognized industry requirements.

Where It Works Best

• The QDA221751 fits right into environments where reliability isn't optional:
• Commercial buildings and office power distribution
• Industrial facilities and manufacturing equipment
• HVAC and refrigeration systems
• I-Line panelboards and distribution setups
• Any application requiring dependable 240VAC circuit protection