Square D HGL36150U31X Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Square D
HGL36150U31X
Molded Case Circuit Breaker
Brand
Square D
SKU
HGL36150U31X
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D HGL36150U31X - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D HGL36150U31X - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | HGL36150U31X |
| Series | HGL |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC |
| Amperage Range | 50-150A |
|---|
| Frame Type | HGL |
|---|---|
| Terminal Type | Lugs |
| For Use With | PowerPacT H-Frame Enclosures, Square D NF Panelboards, Square D Switchboards, Industrial Control Panels |
| Wire Gauge | 14 AWG - 3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Micrologic 3.2 Trip Unit |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL, UKCA |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, True RMS Sensing |
Quantity
Square D HGL36150U31X - 150A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | HGL |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC |
| Amperage Range | 50-150A |
|---|
| Frame Type | HGL |
|---|---|
| Terminal Type | Lugs |
| For Use With | PowerPacT H-Frame Enclosures, Square D NF Panelboards, Square D Switchboards, Industrial Control Panels |
| Wire Gauge | 14 AWG - 3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Micrologic 3.2 Trip Unit |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL, UKCA |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, True RMS Sensing |
Similar Items
100A 3 Pole Molded Case Circuit Breaker
100A 3 Pole Molded Case Circuit Breaker
150A 3 Pole Molded Case Circuit Breaker
Description
Engineered for demanding industrial applications, the Square D HGL36150U31X is a 150A, 3-pole molded case circuit breaker from the PowerPacT H-Frame family. This unit-mount breaker installs into Square D NF panelboards, switchboards, and industrial control panels. It accepts 14 to 3/0 AWG wire via standard lug terminals. Rated 35 kAIC at 480VAC, it features a Micrologic 3.2 electronic trip unit. This solid-state technology offers adjustable long-time and instantaneous (LI) protection.Specifications
| Brand | Square D |
|---|---|
| Part Number | HGL36150U31X |
| Series | HGL |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC |
| Amperage Range | 50-150A |
|---|
| Frame Type | HGL |
|---|---|
| Terminal Type | Lugs |
| For Use With | PowerPacT H-Frame Enclosures, Square D NF Panelboards, Square D Switchboards, Industrial Control Panels |
| Wire Gauge | 14 AWG - 3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Micrologic 3.2 Trip Unit |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL, UKCA |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, True RMS Sensing |
Product FAQs
5 answersWhat does the "U31X" suffix mean in the HGL36150U31X catalog number?
The "U31X" indicates the breaker is equipped with a Micrologic 3.2 electronic trip unit. This solid-state technology provides adjustable long-time and instantaneous (LI) protection settings, offering more precise coordination than standard thermal-magnetic trip units.
What are the tightening torque specifications for the standard lugs?
For the factory-installed AL150HD box lugs, tighten 14 AWG to 10 AWG wire to 44 lbf-in. For 8 AWG to 3/0 AWG wire, tighten to 124 lbf-in. Always confirm specifications with the manufacturer label on the side of the breaker prior to termination.
How does this unit-mount breaker install into Square D NF panelboards?
While it is compatible with NF panelboards, this unit-mount breaker requires a specific main breaker kit or sub-feed mounting kit for proper installation on the panel chassis. It does not plug directly onto the bus like I-Line variants.
Is this breaker rated for 80% or 100% continuous current?
The HGL36150U31X is a standard 80% rated circuit breaker. Applications requiring a 100% continuous current rating would require a different catalog number, typically denoted by a "C" suffix in the part number.
Does the PowerPacT H-Frame support field-installable electrical accessories?
Yes. You can field-install internal accessories such as shunt trips, undervoltage releases, and auxiliary contacts. These mount securely in designated accessory pockets behind the breaker front cover.
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.