QDA221754 - 175 Amp Circuit Breaker

QDA221754 - 175 Amp Circuit Breaker

The Square D QDA221754 PowerPacT Q circuit breaker is built for straightforward, reliable protection in 240V systems. At 175 amps with a 2-pole setup, it’s commonly used in commercial and light industrial panels where you need something that just works—day in and day out—without constant attention. It uses a thermal-magnetic trip mechanism, so it reacts differently depending on the type of fault. Longer overloads and sudden short circuits are both handled appropriately, which helps protect your equipment without nuisance tripping. The 25kA interrupting rating also gives it the capacity to deal with higher fault levels when they happen. On the install side, it’s set up with I-Line connections on the line side, which makes it quicker to mount in compatible panelboards. The load side uses mechanical lugs, keeping things familiar and easy to wire. There’s also a push-to-trip button on the front—simple, but useful when you’re doing routine checks or troubleshooting.

Key Features and Benefits

• Handles both overloads and short circuits with a thermal-magnetic trip unit
• 175A / 2-pole configuration suited for standard 240V distribution
• 25kA interrupting rating for higher fault conditions
• I-Line mounting helps reduce install time in the right panels
• Push-to-trip button for quick manual testing
• HACR rated for HVAC-related equipment
• Designed for consistent performance over repeated use

Technical Specifications

• Series: PowerPacT Q
• Catalog Number: QDA221754
• Amperage: 175A
• Poles: 2
• Voltage: 240V AC, 50/60 Hz
• Interrupting Rating: 25kA at 120/208V AC and 240V AC
• Trip Type: Thermal-Magnetic
• Magnetic Trip: 2400A trip / 1200A hold
• Continuous Rating: 80%
• Mounting: I-Line (line) / Lug (load)
• Phase Connection: BC
• Size: 6.47" H x 3" W x 3.93" D
• Wire Range: AWG 4 – 300 kcmil

Material Compliance and Certifications

• UL Listed
• CSA Certified
• NOM Certified
• IEC Compliant
• Meets widely accepted electrical standards, so it can be used in regulated environments without concern.

Where It Works Best

• Commercial panelboards and distribution systems
• Light industrial equipment setups
• HVAC systems and related installations
• I-Line panel configurations
• Replacement jobs where matching specs matters