QBA221752 - 175 Amp Circuit Breaker

QBA221752 - 175 Amp Circuit Breaker

If you’ve worked with distribution panels before, you already know—not all breakers are equal. Some just feel better to install and more predictable once they’re in. The QBA221752 PowerPacT Q falls into that category. It’s a 175 amp, 2-pole breaker with a standard thermal-magnetic trip, so nothing unusual there—but that’s kind of the point. It does what it’s supposed to do without surprises. It’ll catch overloads, clear short circuits, and not give you nuisance trips if everything else in the system is set up right. Where it helps you out is on the install side. The I-Line connection makes a difference if you’re working in compatible gear—less messing around, quicker seat, done. On the load side, you’ve got mechanical lugs that are easy to work with. No learning curve. It’s also not oversized or awkward, which matters more than people admit when you’re inside a crowded panel. And the push-to-trip button is right there—simple, no guessing when you need to test it. Bottom line: it’s a straightforward breaker that fits into most commercial or light industrial setups without slowing you down.

Key Features and Benefits

• 175A Rating – Good fit for typical commercial distribution loads
• Thermal-Magnetic Trip – Standard protection that reacts the way you expect
• 10kA Interrupting Capacity – Handles fault conditions at 120/208V and 240V AC
• I-Line Mount (Line Side) – Saves time if your panel is set up for it
• Lug Connections (Load Side) – Simple, secure terminations
• Push-to-Trip Button – Quick manual test, no extra steps
• Compact Size – Easier to work with in tighter panels
• HACR Rated – Suitable for HVAC and refrigeration circuits

Technical Specifications

• Catalog Number: QBA221752
• Series: PowerPacT Q
• Amperage: 175A
• Poles: 2
• Voltage: 240VAC, 50/60 Hz
• Interrupting Rating: 10kA 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)
• Wire Range: AWG 4 – 300 kcmil
• Size: 6.47" H x 3" W x 3.93" D
• Operating Temp: 40°C to 70°C

Material Compliance and Certifications

• UL Listed
• CSA Certified
• NOM Compliant
• IEC Certified
• Meets NEMA standards
• Nothing flashy here—just the approvals you expect when you’re installing equipment that has to pass inspection and hold up over time.

Where It Works Best

• Commercial buildings with consistent electrical loads
• Light industrial applications
• HVAC and refrigeration systems (HACR-rated setups)
• Panelboards and switchboards using I-Line mounting
• Tight panels where space is limited
• Replacement jobs where you need a direct, no-hassle fit