Engineered for industrial applications, the Square D HGL36125SA is a 3-pole, 125A MCCB from the PowerPacT H-Frame family. It delivers reliable thermal-magnetic protection for demanding systems. This unit mount breaker installs into control panels and switchboards. It serves as a modern replacement for legacy KAL36125 breakers. Rated for 35kAIC at 480VAC, it features a factory-installed 120VAC shunt trip for remote operation and a Visi-Trip indicator for quick fault identification.
What does the "SA" suffix indicate on the HGL36125SA circuit breaker?
The "SA" suffix indicates that this breaker includes a factory installed 120VAC shunt trip release coil, allowing the breaker to be tripped remotely.
What does the "G" in the HGL36125SA catalog number represent?
The "G" indicates the interrupting rating tier for this PowerPacT H-Frame breaker, which provides 65kA at 240VAC, 35kA at 480VAC, and 18kA at 600VAC.
What does the "L" in the HGL36125SA part number signify?
The "L" signifies that the breaker is supplied with factory installed mechanical lugs on both the line and load sides.
What are the magnetic trip settings for the HGL36125SA?
This thermal magnetic breaker features fixed magnetic protection with a hold current of 900A and a trip current of 1700A.
Is the HGL36125SA rated for 100 percent continuous current?
No, this breaker has a standard 80 percent continuous current rating. Per NEC guidelines, it should not be loaded continuously beyond 100A.
What is the DC voltage and interrupting rating for the HGL36125SA?
This breaker is rated for use on DC systems up to 500VDC, providing an interrupting capacity of 20kA at both 250VDC and 500VDC.
Can the HGL36125SA be installed in an I-Line panelboard?
No, the HGL36125SA is a unit mount breaker designed for individual mounting on a backpan or plate. It lacks the plug-on brackets required for I-Line panelboards.
What enclosures are compatible with the HGL36125SA?
This unit mount breaker is suitable for use in PowerPacT H-Frame enclosures, industrial control panels, switchboards, and motor control centers.
What wire sizes are accepted by the lugs on the HGL36125SA?
The factory installed line and load lugs accept 14 AWG to 3/0 AWG aluminum or copper wire.
Does the HGL36125SA include a push to trip feature?
Yes, it features an integral push to trip button on the cover, allowing electricians to manually trip the breaker and verify the mechanical operation of the trip mechanism.
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