Engineered for precise electrical safety, this 35A molded case circuit breaker incorporates fixed thermal and adjustable magnetic trip functions. It is a core component of the PowerPacT H-Frame lineup for commercial use. Installation is streamlined thanks to the I-Line mounting configuration, which fits perfectly into Square D panelboards. It acts as an upgrade path for aging FA36035 and FH36035 breakers. Boasting a 65kAIC rating at 240V, the unit provides excellent fault current limitation.
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It utilizes a specialized plug-in mounting style that connects directly to the I-Line bus stack.
Can I install the HGA36035 in a standard NQ or NF panelboard?
No, the HGA36035 features an I-Line plug-in connection and will not fit in NQ, NF, or QO series panelboards. It must be installed in an I-Line specific enclosure.
How does the I-Line mounting system work for this breaker?
The I-Line design allows the breaker to snap directly onto the panel's bus stack using plug-in jaws. This eliminates the need to manually bolt the breaker to the busbars, significantly speeding up installation and replacement.
Is the trip unit on the HGA36035 adjustable?
Yes, partially. It features a thermal-magnetic trip unit with fixed thermal protection for long-time overloads, and an adjustable magnetic protection setting to fine-tune the instantaneous short-circuit response.
What does the "G" in the HGA36035 part number indicate?
In the Square D PowerPacT H-frame nomenclature, the "G" indicates the interrupting rating tier. For this specific breaker, the G-rating signifies an interrupting capacity of 35kA at 480VAC and 65kA at 240VAC.
What is the difference between the HGA36035 and the HDA36035?
The difference lies in the interrupting capacity. The HGA36035 has a "G" rating (35kA at 480V), while the HDA36035 has a lower "D" rating (18kA at 480V). Both share the same 35A rating, 3-pole configuration, and I-Line mounting.
What wire sizes are accepted by the standard lugs on this breaker?
The factory-installed lugs on the HGA36035 accept wire gauges ranging from 14 AWG up to 3/0 AWG. The terminals are rated for use with both aluminum and copper conductors.
Can the HGA36035 be used in direct current (DC) systems?
Yes, this breaker is rated for DC applications. It provides an interrupting capacity of 20kA at both 250VDC and 500VDC.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 14 reviews.
Square D HGA36150 - 150A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
5/18/26
Great item
Breaker was in great shape, and packaged with care
CF
Cameron F.
Verified Buyer
Reviewing
Square D HGA36050 - 50A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/29/25
HGA36050
Thank you, guys, for being SUPER quick with all your deliveries.
CW
Callie W.
Reviewing
Square D HGA36020 - 20A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/28/22
Great company
Have made multiple orders through them and they always ship out fast and the correct items. Will continue to do business with them.
JM
Justin M.
Reviewing
Square D HGA36150 - 150A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
5/8/22
Great service!
Prompt shipping.
SM
Steven M.
Reviewing
Square D HGA36050 - 50A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/11/22
Great 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!!