The Square D HLA36040 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 40 Amps and a voltage rating of 600VAC. It has an interrupting rating of 100kAIC at 480VAC. The HLA36040 has an I-Line style plug-in connection type and includes long time and instantaneous trip functions.
Which panelboards accept the HLA36040 circuit breaker?
The HLA36040 is designed specifically for Square D I-Line panelboards and I-Line switchboards. It utilizes an I-Line style plug-in connection that mounts directly to the interior bus.
What does the L in the HLA36040 catalog number indicate?
The L designates the interrupting rating for this PowerPacT H-frame breaker. It provides a high interrupting capacity of 125kA at 240VAC, 100kA at 480VAC, and 50kA at 600VAC.
How much mounting space does the HLA36040 require in an I-Line panelboard?
As a 3-pole H-frame breaker, it requires 4.5 inches of I-Line mounting space, which equates to 1.5 inches per pole.
What are the lug wire size requirements for the HLA36040?
The factory-installed lugs accommodate wire sizes from 14 AWG to 3/0 AWG. They are dual-rated for use with either aluminum or copper conductors.
Can the PowerPacT HLA36040 replace older Square D F-frame breakers?
Yes, the PowerPacT H-frame series was introduced as a direct replacement and upgrade for legacy Square D F-frame circuit breakers, such as the FA, FH, and FC series.
Can I adjust the trip curve on the HLA36040?
No, this specific model is equipped with a thermal magnetic trip unit that has fixed long-time and fixed instantaneous (LI) settings. If you require adjustable settings, you will need a breaker equipped with a MicroLogic electronic trip unit.
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