Free Shipping Over $99
Square D Q2L3175 Molded Case Circuit Breaker
- 175A
- 3 Pole
- Unit Mount
Square D
Q2L3175
Molded Case Circuit Breaker
Brand
Square D
SKU
Q2L3175
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D Q2L3175 - 175A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Sold out
Quantity
Square D Q2L3175 - 175A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | Q2L3175-R |
| Series | Q2L |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Enclosures, Switchboards, NQOD Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Quantity
Square D Q2L3175 - 175A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | Q2L3175-R |
| Series | Q2L |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Enclosures, Switchboards, NQOD Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Similar Items
125A 3 Pole Molded Case Circuit Breaker
175A 2 Pole Molded Case Circuit Breaker
175A 3 Pole Molded Case Circuit Breaker
Description
Engineered for commercial applications, the Square D Q2L3175 is a 3-pole unit mount molded case circuit breaker. It delivers 175A of continuous current capacity and features standard long-time and instantaneous (LI) trip functions. Designed to mount into Square D enclosures, switchboards, and legacy NQOD panelboards, this Q-frame breaker serves as an exact replacement for aging electrical systems. Rated 10kAIC at 240VAC, it includes Visi-Trip indication and factory-installed lugs.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q2L3175-R |
| Series | Q2L |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Enclosures, Switchboards, NQOD Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
7 answersWhat equipment is compatible with the Q2L3175 circuit breaker?
The Q2L3175 is a unit-mount Q-frame breaker designed for Square D enclosures, switchboards, and legacy NQOD panelboards. It bolts to the backpan and is not compatible with standard plug-on QO or Homeline load centers.
Does the Q2L3175 require a separate lug kit for installation?
No, this feed-thru circuit breaker includes factory-installed lugs on both the line and load sides. It mounts directly to the unit backpan.
Can I use a PowerPact Q-frame breaker to replace the Q2L3175 in a legacy NQOD panel?
While PowerPact Q-frame breakers share similar dimensions, the UL listing on legacy NQODQ2 panelboards is strictly for Q2-frame breakers like the Q2L3175. Installing a PowerPact breaker in these older panels may void the UL listing.
Can the Q2L3175 be used on 480V or 600V systems?
No, this breaker is strictly rated for a maximum of 240V AC. Applying it to a 480V or 600V system exceeds its design limits and creates a severe safety hazard.
What wire sizes are accepted by the Q2L3175 terminals?
The factory-installed lugs accept aluminum or copper conductors ranging from 4 AWG up to 300 kcmil. Always verify local codes for proper wire sizing based on the 175A rating.
Can the trip settings be adjusted on the Q2L3175?
No, this thermal-magnetic breaker features fixed long-time and fixed instantaneous (LI) trip functions. The trip curve parameters cannot be modified in the field.
Is the Q2L3175 suitable for high fault current applications?
The Q2L3175 has an interrupting capacity of 10kA at 240V AC. It should not be installed in systems where the available fault current exceeds this rating.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.