The HJL36070 is a 3-pole, 70A MCCB from Square D's PowerPacT H-Frame series, built for commercial and industrial applications with dependable LI trip functions. This unit-mount breaker installs into industrial control panels and switchboards. It also serves as a replacement for legacy FCL36070 breakers. Rated for 65 kAIC at 480VAC, this current-limiting device features fixed thermal-magnetic settings and Visi-Trip technology for clear fault indication.
The HJL36070 is a unit-mount circuit breaker. It features standard feed-thru lug connections on both the line and load sides, rather than plugging directly into a busbar.
Can this breaker be installed in an I-Line panelboard?
No, the HJL36070 is a unit-mount breaker and will not plug into an I-Line panelboard. For I-Line applications, you will need the equivalent plug-in version, which is catalog number HJA36070.
What does the J in the HJL36070 catalog number indicate?
The J indicates the interrupting rating tier within the PowerPacT H-Frame series. It signifies a high interrupting capacity of 65 kA at 480 VAC and 100 kA at 240 VAC.
Can the HJL36070 be reverse fed?
Yes, standard unit-mount PowerPacT H-Frame circuit breakers with thermal-magnetic trip units, like the HJL36070, are suitable for reverse feeding.
Is the trip unit on this 70A breaker adjustable?
No, the HJL36070 features a fixed thermal and fixed magnetic trip unit. It provides standard long-time and instantaneous protection without adjustable dials.
What is the difference between the HDL36070, HGL36070, and HJL36070?
The middle letter in the catalog number indicates the interrupting rating. The HDL36070 is rated for 18 kA at 480 VAC, the HGL36070 for 35 kA, and the HJL36070 for 65 kA. All three share the same physical dimensions and mounting style.
What wire sizes are accepted by the standard lugs on this breaker?
The factory-installed lugs on the HJL36070 accept 14 AWG to 3/0 AWG aluminum or copper wire.
What types of enclosures or panels are suitable for the HJL36070?
This breaker is designed for use in industrial control panels, switchboards, motor control centers, and panelboards that accommodate unit-mount PowerPacT H-Frame breakers.
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