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Square D HGA36045 Molded Case Circuit Breaker
- 45A
- 3 Pole
- I-Line
Square D
HGA36045
Molded Case Circuit Breaker
Brand
Square D
SKU
HGA36045
Quantity
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Square D HGA36045 - 45A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D HGA36045 - 45A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | HGA36045 |
| Series | HGA |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC |
| Frame Type | H |
|---|---|
| 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Load Side Lugs Included |
| 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, Reverse Feed, Visual Trip Indicator |
Quantity
Square D HGA36045 - 45A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | HGA36045 |
| Series | HGA |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC |
| Frame Type | H |
|---|---|
| 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Load Side Lugs Included |
| 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, Reverse Feed, Visual Trip Indicator |
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Description
Engineered for commercial and industrial applications, the Square D HGA36045 is a 3-pole, 45A molded case circuit breaker from the PowerPacT H-Frame family. Featuring an I-Line plug-on mounting style, it installs into Square D I-Line panelboards and switchboards. It serves as a direct replacement for legacy FA36045 and FH36045 breakers. Rated at 35 kAIC at 480VAC, it utilizes fixed thermal-magnetic trip technology with long-time and instantaneous (LI) functions. The breaker is HACR rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | HGA36045 |
| Series | HGA |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC |
| Frame Type | H |
|---|---|
| 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Load Side Lugs Included |
| 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, Reverse Feed, Visual Trip Indicator |
Product FAQs
7 answersWhat type of panelboards accept the HGA36045 circuit breaker?
This breaker features an I-Line style plug-in connection and is designed exclusively for use in Square D I-Line panelboards and switchboards. It will not fit standard load centers or NQ/NF panelboards.
What wire sizes and materials are supported by the lugs on this breaker?
The factory-installed lugs accept 14 AWG to 3/0 AWG wire. They are rated for both aluminum and copper conductors.
Can the HGA36045 be used in DC applications?
Yes, this breaker is rated for DC systems up to 500VDC. It provides an interrupting capacity of 20kA at both 250VDC and 500VDC.
Are the thermal and magnetic trip settings adjustable on the HGA36045?
No, this specific PowerPacT H-frame breaker uses a fixed thermal and fixed magnetic trip unit. It provides standard long-time and instantaneous (LI) protection without adjustable dials.
What does the 'G' in the HGA36045 part number indicate?
The 'G' designates the interrupting rating tier within the Square D PowerPacT H-frame family. It indicates a G-interrupting level, which provides 65kA at 240VAC, 35kA at 480VAC, and 18kA at 600VAC.
Does this breaker require a separate mounting hardware kit for installation?
No, the I-Line plug-in design includes the necessary jaw connections to mount directly onto the I-Line bus assembly. No additional mounting brackets or hardware kits are required for standard panelboard installation.
Is the HGA36045 a suitable replacement for older FA or FH series breakers?
Yes, the PowerPacT H-frame is the modern replacement for legacy Square D FA and FH series I-Line breakers. It fits into the same I-Line bus slots, though you should confirm your panel has the required mounting space.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 14 reviews.
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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!!