Free Shipping Over $99
Square D HGA36150SA Molded Case Circuit Breaker
- 150A
- 3 Pole
- I-Line
Square D
HGA36150SA
Molded Case Circuit Breaker
Brand
Square D
SKU
HGA36150SA
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D HGA36150SA - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
50A 3 Pole Molded Case Circuit Breaker
150A 3 Pole Molded Case Circuit Breaker
Description
Engineered for commercial and industrial power distribution, the Square D HGA36150SA is a 3-pole, 150A molded case circuit breaker from the PowerPacT H-Frame family. It provides reliable thermal-magnetic protection for heavy-duty electrical systems. This plug-on breaker installs into Square D I-Line panelboards and switchboards. It serves as a direct replacement for legacy KA36150 breakers when a shunt trip is required. Rated at 35kAIC at 480VAC, it includes a factory-installed shunt trip.Specifications
| Brand | Square D |
|---|---|
| Part Number | HGA36150SA |
| Series | HGA |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC |
| Frame Type | HGA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14-3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Shunt Trip (Factory Installed), Load Side Lugs Included, I-Line Bracket (Factory Installed) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed |
Product FAQs
6 answersWhat does the "SA" suffix indicate on the HGA36150SA catalog number?
The "SA" suffix designates that this PowerPacT H-frame breaker comes with a factory-installed 120VAC shunt trip, allowing the breaker to be tripped remotely.
Which legacy Square D breakers does the HGA36150SA replace?
This breaker serves as the modern, direct replacement for legacy KA-frame breakers, specifically the KA36150, in applications that require a 120VAC shunt trip. It uses the same I-Line plug-on mounting footprint.
Can I adjust the trip settings on the HGA36150SA?
Yes, while the thermal (long-time) protection is fixed at 150 amps, the magnetic (instantaneous) trip function is adjustable to help coordinate with other protective devices in your system.
What type of panelboard is required for the HGA36150SA?
This breaker features an I-Line style plug-in connection, meaning it is exclusively compatible with Square D I-Line panelboards and switchboards. It cannot be used in standard load centers or unit-mount applications.
What does the "LI" trip function code mean on this breaker?
The "LI" designation indicates that the thermal-magnetic trip unit provides Long-Time (L) overload protection and Instantaneous (I) short-circuit protection.
Are the lugs on the HGA36150SA rated for both copper and aluminum wire?
Yes, the factory-installed lugs are dual-rated for both aluminum and copper conductors, accepting wire sizes from 14 AWG up to 3/0 AWG.
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.
Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 14 reviews.
Search
Rating
14 reviews
- RERic E.Verified BuyerReviewingSquare D HGA36150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/18/26Great item
Breaker was in great shape, and packaged with care
- CFCameron F.Verified BuyerReviewingSquare D HGA36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/29/25HGA36050
Thank you, guys, for being SUPER quick with all your deliveries.
- CWCallie W.ReviewingSquare D HGA36020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/28/22Great company
Have made multiple orders through them and they always ship out fast and the correct items. Will continue to do business with them.
- JMJustin M.ReviewingSquare D HGA36150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/8/22Great service!
Prompt shipping.
- SMSteven M.ReviewingSquare D HGA36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/11/22Great service
I need the 2 breakers NDA, but they had one in stock, and had to get the other from there supplier. Some how I received both breaker the next day and got the job done. GREAT SERVICE!!