Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Square D HJA36050 Molded Case Circuit Breaker
- 50A
- 3 Pole
- I-Line
Square D
HJA36050
Molded Case Circuit Breaker
Brand
Square D
SKU
HJA36050
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D HJA36050 - 50A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D HJA36050 - 50A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | HJA36050 |
| Series | HJA |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, HID Rated, Non-Interchangeable Trip, Visual Trip Indicator |
Quantity
Square D HJA36050 - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | HJA36050-R |
| Series | HJA |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, HID Rated, Non-Interchangeable Trip, Visual Trip Indicator |
Similar Items
60A 3 Pole Molded Case Circuit Breaker
40A 3 Pole Molded Case Circuit Breaker
35A 3 Pole Molded Case Circuit Breaker
Description
Built for commercial applications, the Square D HJA36050 is a 3-pole, 50A molded case circuit breaker. As part of the PowerPacT H-Frame series, it delivers reliable overcurrent protection. This breaker mounts into Square D I-Line panelboards and switchboards. It is an excellent replacement option for older FC36050 and FH36050 models, allowing facilities to maintain their enclosures. Featuring an adjustable magnetic trip, it provides precise long-time and instantaneous (LI) protection.Specifications
| Brand | Square D |
|---|---|
| Part Number | HJA36050 |
| Series | HJA |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, HID Rated, Non-Interchangeable Trip, Visual Trip Indicator |
Product FAQs
8 answersWhat panelboards are compatible with the HJA36050?
This breaker features an I-Line style plug-in connection, meaning it is designed specifically for use in Square D I-Line panelboards and switchboards. The line side connects directly to the I-Line bus stack.
What does the "J" in the HJA36050 catalog number signify?
The "J" indicates the interrupting rating tier within the PowerPacT H-Frame family. The J-interrupting tier provides high interrupting capacity, rated for 100kA at 240VAC and 65kA at 480VAC.
Can the HJA36050 be used in DC applications?
Yes, this thermal-magnetic circuit breaker is rated for use on DC circuits up to 250VDC with a 20kA interrupting rating.
How are the line and load side connections made on the HJA36050?
The line side features an I-Line plug-in connection that mounts directly to the panelboard bus stack. The load side comes standard with mechanical lugs that accept 14 AWG to 3/0 AWG aluminum or copper conductors.
Can I add an auxiliary switch or shunt trip to the HJA36050?
Yes, PowerPacT H-Frame breakers accept field-installable electrical accessories, including shunt trips, undervoltage releases, and auxiliary or alarm switches. These accessories are installed internally under the front accessory cover.
What is the difference between the HJA36050 and the HGA36050?
Both are 50-Amp, 3-pole PowerPacT H-Frame circuit breakers for I-Line panelboards, but they feature different interrupting capacities. The HJA36050 is a J-tier high-interrupting breaker rated at 100kA at 240VAC and 65kA at 480VAC, while the HGA36050 is a G-tier standard-interrupting breaker rated at 65kA at 240VAC and 35kA at 480VAC.
Is the HJA36050 HACR rated?
Yes, this circuit breaker is HACR rated, meaning it is suitable for use with heating, air conditioning, and refrigeration equipment in accordance with the National Electrical Code.
What size hex wrench is required for the load side lugs on the HJA36050?
The standard mechanical lugs on this breaker require a 3/16-inch hex wrench (Allen wrench) for proper installation and torqueing of the conductor screws.
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 5.0 out of 5 based on 3 reviews.
Total 5 star reviews: 3 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Search
Rating
3 reviews
- RFRon F.Verified BuyerRated 5 out of 5 stars7/27/26Square D HJA36050 review
The delivery was on and exactly what I ordered as usual. I highly recommend Super Breakers!
- RFRandy F.Rated 5 out of 5 stars1/9/19easy to do business with
easy to do business with
- BTBrice T.Rated 5 out of 5 stars11/2/17Breaker
Great Price, Fast Shipping!!!