Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Square D HDA36125 Molded Case Circuit Breaker
- 125A
- 3 Pole
- I-Line
Square D
HDA36125
Molded Case Circuit Breaker
Brand
Square D
SKU
HDA36125
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D HDA36125 - 125A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D HDA36125 - 125A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | HDA36125 |
| Series | HDA |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HDA |
|---|---|
| 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, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, HACR, 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, Visual Trip Indicator, Reverse Feed, Phase Connection ABC, 80% Rated |
Quantity
Square D HDA36125 - 125A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | HDA36125-R |
| Series | HDA |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HDA |
|---|---|
| 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, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, HACR, 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, Visual Trip Indicator, Reverse Feed, Phase Connection ABC, 80% Rated |
Similar Items
150A 3 Pole Molded Case Circuit Breaker
100A 3 Pole Molded Case Circuit Breaker
90A 3 Pole Molded Case Circuit Breaker
Description
Engineered for commercial and industrial applications, this 125A PowerPacT H-Frame breaker provides reliable long-time and instantaneous (LI) protection. It mounts into Square D I-Line panelboards and switchboards, serving as a modern upgrade for legacy KA36125 units. Featuring a 25kAIC rating at 240VAC and 18kAIC at 480VAC, the unit includes Visi-Trip visual indicators and current-limiting capabilities to enhance system safety and simplify troubleshooting.Specifications
| Brand | Square D |
|---|---|
| Part Number | HDA36125 |
| Series | HDA |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HDA |
|---|---|
| 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, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, HACR, 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, Visual Trip Indicator, Reverse Feed, Phase Connection ABC, 80% Rated |
Product FAQs
5 answersWhat does the I-Line connection on the HDA36125 mean for installation?
The I-Line designation means this breaker is built specifically for Square D I-Line panelboards and switchboards. It features a plug-on jaw connection on the line side that attaches directly to the panel bus, while the load side uses standard mechanical lugs for wire terminations.
What are the magnetic hold and trip thresholds for this 125A breaker?
This thermal-magnetic circuit breaker features a magnetic hold current of 900A and a magnetic tripping current of 1700A.
Can the factory load lugs be replaced with compression lugs?
Yes. The standard AL150HD mechanical load lugs are field-removable. They can be swapped for compatible compression lugs, power distribution connectors (PDCs), or alternative mechanical lugs to match your specific conductor requirements.
Is the HDA36125 rated for 80 percent or 100 percent continuous current?
The standard HDA36125 is 80 percent continuous current rated.
Does this breaker include a push-to-trip button?
Yes, PowerPacT H-Frame breakers include an integral push-to-trip button on the front cover. This allows you to manually trip the breaker to verify the mechanical operation of the device safely.
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 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Search
Rating
2 reviews
- CGClyde G.Rated 5 out of 5 stars5/23/19President
You give good fast service and I am very pleased with your service and products. Thanks
Clyde
- MHMichael H.Rated 5 out of 5 stars6/7/17Duo: Price and Customer Service
Every time I shop around for breakers both locally and online SuperBreakers is consistently cheaper and every time I have needed to speak to their customer service department they are always top notch! Will continue shopping for my breakers from SuperBreakers!