Square D HGA36100 Molded Case Circuit Breaker

This breaker features an I-Line mounting style, allowing it to plug directly into the bus stack of compatible Square D I-Line panelboards and switchboards.

No. The HGA36100 is built with a specific I-Line plug-on connection designed exclusively for Square D I-Line systems. It cannot be cable-connected on the line side or bolted into a standard load center.

It uses Square D proprietary I-Line plug-on jaws on the line side. These jaws engage directly onto the panelboard bus, eliminating the need for line-side wire lugs or additional mounting hardware.

Yes, this breaker comes with factory-installed mechanical lugs on the load side. They are dual-rated for aluminum or copper wire, avoiding the need to order separate terminal kits for standard 14 AWG to 3/0 AWG conductors.

Yes, PowerPacT H-Frame breakers serve as direct modern replacements for legacy F-Frame I-Line breakers, such as the FA, FH, and FC series. They will fit into the exact same panelboard space.

The G in HGA designates the specific interrupting rating level, which is 35kA at 480VAC. Models like the HDA have lower fault ratings, while the HJA and HLA offer higher fault current capacities within the exact same physical footprint.

The LI designation indicates Long-Time (overload) and Instantaneous (short circuit) protection. Because both thresholds are fixed on this thermal magnetic model, you cannot adjust the trip curves in the field to coordinate with downstream breakers. If adjustability is required, an electronic trip unit model is necessary.

Yes, unlike many standard AC-only breakers, this model is certified for DC networks up to 500VDC. This makes it suitable for solar, battery backup, or industrial DC distribution equipment that accepts I-Line breakers.

Yes, upon detecting an overcurrent or short-circuit fault, the physical toggle handle will snap to a distinct center-tripped position, providing immediate visual confirmation that the circuit has opened.