As a high-capacity component of the PowerPacT series, this 150A, 3-pole molded case circuit breaker delivers dependable thermal-magnetic protection. It installs into Square D industrial control panels, switchboards, and serves as a main breaker in NQ and NF panelboards. Rated at 65 kAIC at 480VAC, the unit features fixed long-time and instantaneous (LI) trip functions. It is an ideal solution for new installations or as a replacement for legacy KAL36150 K-Frame breakers requiring a retrofit.
Yes. Standard unit mount PowerPacT H-frame circuit breakers with factory-sealed thermal-magnetic trip units, like the HJL36150, are suitable for reverse connection (backfeeding) in compatible applications.
What type of lugs are included with this breaker?
The HJL36150 comes standard with AL150HD mechanical lugs installed on both the line and load ends. These lugs accept 14 AWG to 3/0 AWG aluminum or copper wire.
What panelboards or systems is the HJL36150 compatible with?
This unit mount breaker is designed for use in Square D industrial control panels, switchboards, and individual enclosures. It can also serve as a main breaker in NQ and NF series panelboards when installed with the appropriate mounting kit.
What do the letters and numbers in the HJL36150 catalog number mean?
The H denotes the PowerPacT H-frame. The J indicates the interrupting capacity of 65kA at 480VAC. The L signifies it is a unit mount breaker with lugs on both ends. The 3 means it is a 3 pole breaker, the 6 rates it for up to 600VAC, and the 150 represents the 150A continuous current rating.
What are the alternate interrupting capacity options for this frame size?
If your fault current requirements differ from the 65kA at 480VAC offered by the J-interrupting tier, Square D offers the same 150A 3 pole footprint in the HDL36150 (18kA), HGL36150 (35kA), and HLL36150 (100kA) models.
Are the trip functions on the HJL36150 adjustable?
No. This breaker is equipped with a fixed thermal-magnetic trip unit featuring pre-set long-time and instantaneous (LI) protection. If adjustable trip settings are required, a Micrologic electronic trip unit model must be selected instead.
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