Square D PowerPacT Q Molded Ca...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,206.64
Square D PowerPacT Q Molded Case Circuit Breaker, Thermal Magnetic Trip

Square D PowerPacT Q Molded Case Circuit Breaker, Thermal Magnetic Trip

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Model: QDL32175

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,206.64
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Square D PowerPacT Q Molded Case Circuit Breaker, Thermal Magnetic Trip

The Square D PowerPacT Q Molded Case Circuit Breaker delivers dependable overcurrent protection and switching for 240VAC commercial and industrial power distribution systems. This configuration is rated 175 A, 3-pole, 240VAC, with a thermal magnetic trip unit and an 80% continuous current rating, and terminates with line and load lugs for straightforward panel installation. Backed by UL, NOM, and CSA certifications, the PowerPacT Q Series is available in 2 and 3-pole configurations to fit a range of panelboard and switchgear applications.

Key Features

  • Current Rating: 175 A line rated current for reliable circuit protection.
  • Configuration: 3-pole design suited for three-phase 240VAC distribution.
  • Operational Voltage: Rated 240 V AC, 50/60 Hz for standard commercial and industrial power systems.
  • Trip Unit Technology: Thermal-magnetic trip for consistent overload and short-circuit protection.
  • Continuous Current Rating: 80% rated for continuous-duty applications.
  • Electrical Connection: Line and load lugs rated 25-150 mm² (AWG 4...300 kcmil) with 28-28 N.m tightening torque.
  • Impulse Withstand Voltage: 8 kV UL rated impulse withstand for added system resilience.
  • Mechanical Durability: Rated for 1000 cycles loaded and 5000 cycles no-load operation.

Certifications & Compliance

  • UL Listed
  • NOM Certified
  • CSA Certified
  • Complies with NEMA and NOM-003-SCFI-2000 standards

Technical Specifications

  • Warranty: 18 months
  • Warranty Period: 18 months
  • Sustainable Packaging: No
  • Mercury Free: Yes
  • Packaging Without Single Use Plastic: No
  • Tier Id: 1
  • ROHS Eur In Scope: Yes
  • Recycled Metal Content At Cr Level: 0 %
  • Poles Description: 3P
  • Serviceability: No
  • With Recycled Cardboard: Yes
  • WEEE Product Category: 4
  • China ROHS In Scope: No
  • Return Indicator: Y
  • Take Back: No
  • Tier: 1
  • Returnability: Yes
  • Field Service Division: PPIBS
  • Magnetic Tripping Current: 2400-2400 A
  • Carbon Footprint: 54.9345672223102
  • Trip Unit Technology: thermal-magnetic
  • Installation Carbon Footprint: 0.415330428063579
  • Wire Stripping Length: 22 mm

Typical Applications

  • Commercial and Industrial Panelboard Wiring
  • Load Center and Switchgear Overcurrent Protection
  • Three-Phase 240VAC Power Distribution Systems
  • Contractor and Panel Builder Installations
  • Original Equipment Manufacturer Control Panels

Why Square D?

Square D PowerPacT Q Series circuit breakers combine thermal-magnetic trip protection, UL/NOM/CSA certification, and durable lug connections rated for demanding cycle counts, giving contractors and panel builders code-compliant, dependable overcurrent protection for commercial and industrial 240VAC systems.

Manufacturer Resources

Product Specs

Product Type:
Circuit Breaker
Voltage Rating:
240VAC
Amperage Rating:
175A
Configuration:
3-Pole
Listing:
UL Listed
Standards:
NOM-003-SCFI-2000
Series:
PowerPacT Q
Department:
Electrical
Product Group:
Circuit Protection
Product Subgroup:
Circuit Breakers
Product Width:
4.5 in
Product Height:
6.47 in
Product Depth:
3.93 in

Square D QDL32175 – Frequently Asked Questions

1) What is the closest cross-brand equivalent to the Square D PowerPacT Q 175A 3-pole molded case breaker?
The nearest peer by frame type and pole count is the ABB A2A150TT, an A2 Series 3-pole molded case circuit breaker. Both are 3-pole molded case devices, so both land in the same role in a panelboard or switchgear section. The PowerPacT Q unit is rated 175A at 240VAC with a thermal magnetic trip unit and line and load lugs. Before swapping in the ABB A2, confirm the mounting footprint and interrupting rating match your panel, since the PowerPacT Q body measures 4.5 in wide, 6.47 in high, and 3.93 in deep.
2) Can an Eaton BAB Quicklag three-pole breaker be used instead of the PowerPacT Q 175A?
No, not at this ampere rating. The Eaton BAB Quicklag three-pole industrial thermal-magnetic breaker is a 240V branch-circuit device that bolts into a load center or panelboard interior, while the PowerPacT Q is a molded case breaker rated 175A, 3-pole, 240VAC with line and load lugs sized for AWG 4 to 300 kcmil conductors. The two share thermal-magnetic trip technology and the 240V class, but the Quicklag family covers smaller branch ratings and a different mounting method. Use the Quicklag for branch circuits and the PowerPacT Q for the feeder or main.
3) I need more than 175A on a three-phase feeder - what should I use instead of the PowerPacT Q?
Step up to a larger frame. The Eaton Series C K-Frame mining circuit breaker is a 400A 3-pole unit with an interchangeable rating plug, which lets one frame cover several trip settings instead of being fixed like the 175A PowerPacT Q. The ABB XT5 3-pole circuit breaker kit is another larger-frame 3-pole option. Verify the enclosure and busbar landing on your gear, because a bigger frame will not drop into the space that fits a 4.5 in wide PowerPacT Q.
4) How much space does the PowerPacT Q 175A breaker take up in an enclosure?
Overall it measures 6.47 in high, 4.5 in wide and 3.93 in deep. Check that against your panel interior and gutter space before you commit, especially the 3.93 in depth if you are mounting behind a cover with a fixed dead front.
5) At what current does the magnetic element on this breaker trip instantly?
The magnetic tripping current on the 175A PowerPacT Q is fixed at 2400 A. The thermal element handles sustained overloads and the magnetic element handles short circuits above that 2400 A threshold. It is a non-adjustable thermal-magnetic trip unit, so there is no dial to set in the field.
6) Is a thermal-magnetic breaker like this acceptable, or do I need an electronic trip unit?
Thermal-magnetic suits straightforward feeder and branch protection where you do not need adjustable settings. The QDL32175 has a fixed thermal element for overload and a fixed 2400 A magnetic pickup for faults. If your coordination study calls for adjustable long-time, short-time or instantaneous pickup, or ground fault protection, you want an electronic trip breaker instead. For standard 240V panelboard and switchgear feeders, thermal-magnetic is what gets specified.
7) Is this Square D breaker approved for use in Canada and Mexico as well as the US?
Yes. The PowerPacT Q is UL Listed, NOM Certified and CSA Certified, and complies with NEMA and NOM-003-SCFI-2000. It is also built in Mexico. That three-way approval matters on OEM control panels and equipment that ship across North America.
8) What is the exact part number to order, and does it come in a 2-pole version?
The part number is QDL32175: PowerPacT Q, 175 A, 3-pole, 240 V AC, thermal-magnetic, line and load lugs. The Q Series is offered in both 2 and 3-pole configurations, so a 2-pole device is a different catalog number in the same family.
9) What other 3-pole molded case breakers could I use instead of the Square D PowerPacT Q?
On the molded case side, the ABB A2A150TT in the A2 Series is a 3-pole MCCB, and ABB also offers 3-pole breaker kits in the XT4 and XT5 frames. Those are different frames with different mounting and terminal arrangements, so they are replacements at the system level, not drop-ins for a Q frame. If your 240V application is bolt-on panelboard rather than molded case, Eaton's BAB Quicklag 3-pole thermal-magnetic breaker is a 240V alternative in a much smaller frame at lower ampacities.
10) Does this breaker ship with lugs, or do I order terminals separately?
Line and load lugs are part of the device, rated 25-150 mm2 (AWG 4 to 300 kcmil). You wire straight to it, so no separate terminal kit is needed for a lug-to-lug installation. Plan on the 28 N.m lug torque and a calibrated torque wrench at install.
11) Is an ABB ST200M miniature circuit breaker a substitute for the Square D PowerPacT Q?
No. The ABB ST200M is a miniature circuit breaker with a C-curve, listed to UL1077 as a supplementary protector, so it is not a branch or feeder overcurrent device. The PowerPacT Q is UL Listed as a molded case circuit breaker rated 175A, 240VAC, 3-pole for commercial and industrial power distribution. Use the ST200M for supplementary protection inside control panels and the PowerPacT Q where code requires a listed overcurrent protective device.
12) What is the difference between the PowerPacT Q breaker and the ABB XT4 breaker kit?
The ABB XT4 item is sold as a 3-pole molded case circuit breaker kit, so it is assembled from a frame plus kit components, while the Square D QDL32175 ships as a single factory-rated unit at 175A, 3-pole, 240VAC with a thermal-magnetic trip and line and load lugs. If you are specifying one part number for a panel build and want the rating fixed at the breaker, the PowerPacT Q arrives configured; the XT4 kit route gives you a modular build instead.
13) Does the PowerPacT Q 175A come with an undervoltage release like the Eaton NZM accessory?
The Eaton 10250T item is an undervoltage release accessory for NZM Series molded case breakers, a separate internal accessory ordered against that frame. The Square D QDL32175 is supplied as a 175A, 3-pole, 240VAC thermal-magnetic breaker with line and load lugs; shunt and undervoltage accessories are frame-specific, so an NZM release does not fit a PowerPacT Q. Order Square D accessories rated for the Q frame if you need remote tripping on loss of voltage.
14) How many operations is this breaker rated for if it is being used as a switching device?
Mechanical endurance on the 175A PowerPacT Q is 1000 cycles loaded and 5000 cycles no-load. That is fine for normal protection duty and occasional isolation, but it is not a motor starter or a daily-duty switch. If the application calls for frequent load switching, use a contactor ahead of the breaker.
15) Can this breaker be repaired or have its trip unit swapped if it fails?
No. The 175A PowerPacT Q is a sealed, non-serviceable molded case device with a fixed thermal-magnetic trip unit, so there is no interchangeable rating plug and no field repair. A failed unit gets replaced. If you want field-changeable ampacity, look at a frame with an interchangeable rating plug, such as the Eaton Series C K-Frame.
16) Are Bussmann CBC and CBF automotive circuit breakers interchangeable with the PowerPacT Q?
No. The Bussmann CBC Series is a Type I automotive circuit breaker rated 14VDC, and the CBF and CBS series are likewise automotive breakers for vehicle and low-voltage DC circuits. The Square D PowerPacT Q is a 240VAC molded case breaker rated 175A, 3-pole, UL Listed for commercial and industrial AC distribution. The two families do not overlap in voltage, current, or mounting, so an automotive breaker cannot protect a panelboard feeder.
How fast can I get the Square D QDL32175 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D QDL32175 come with a warranty?
Absolutely. The Square D QDL32175 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D QDL32175?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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