Designed for reliable power management, the Square D HJL36030 is a 30A, 3-pole molded case circuit breaker from the PowerPacT H-Frame series. It utilizes fixed thermal-magnetic trip technology to provide essential long-time and instantaneous (LI) protection. Equipped with line and load lugs, this unit mount breaker fits into industrial control panels and switchboards. It is an ideal upgrade path for replacing legacy FHL36030 breakers via retrofit.
What do the letters HJL signify in the HJL36030 catalog number?
The H denotes the PowerPacT H-Frame family. The J indicates the high interrupting rating tier. The L signifies it is a unit-mount breaker equipped with feed-thru mechanical lugs on both the line and load sides.
Can I install the HJL36030 directly into a Square D I-Line panelboard?
No, the HJL36030 is a unit-mount circuit breaker. For an I-Line panelboard installation, you must use the plug-on variant, which is catalog number HJA36030.
Is the HJL36030 circuit breaker suitable for reverse-fed applications?
Yes. Because this model utilizes a standard thermal-magnetic trip unit, it is approved for reverse-fed installations in switchboards and control panels.
What replacement lug kit is compatible with the HJL36030?
The HJL36030 uses the AL150HD mechanical lug kit. These are the factory-standard lugs for 15A to 150A PowerPacT H-Frame breakers and accept 14 AWG to 3/0 AWG aluminum or copper conductors.
Are the overcurrent trip points adjustable on the HJL36030?
No, this model is built with fixed thermal and fixed magnetic trip elements. If your application requires adjustable settings, you must specify a breaker equipped with a Micrologic electronic trip unit.
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