Operating within the PowerPacT H-Frame family, the Square D HJL26040 is a 40A, 2-pole molded case circuit breaker for industrial applications. This unit-mount breaker is compatible with Square D control panels, switchboards, and NQ or NF panelboards. It replaces legacy FAL26040 F-Frame breakers, though retrofitting may be required. Equipped with a fixed thermal-magnetic trip unit (LI), it is rated for 65kAIC at 480VAC and features a Visi-Trip indicator for enhanced safety.
What is required to use the HJL26040 as a main breaker in an NQ panelboard?
You will need a main breaker adapter kit, such as the NQMB2HJ, to install this H-Frame breaker as a main in an NQ series panelboard.
Does the HJL26040 replace older Square D circuit breakers?
Yes, this PowerPacT H-Frame breaker is the direct replacement for legacy FAL26040 F-Frame breakers. Note that retrofitting or mounting modifications may be required when upgrading.
What is the recommended lug torque for the HJL26040?
For the standard AL150HD lugs, the recommended tightening torque is 44 lb-in for 14-10 AWG wire and 124 lb-in for 8-3/0 AWG conductors.
Can the HJL26040 be reverse fed?
Yes, PowerPacT H-Frame thermal-magnetic breakers are suitable for reverse-feed applications, allowing line connections on either the top or bottom terminals.
Can this breaker be mounted on a DIN rail?
Yes, it can be DIN rail mounted by using the Square D S29305 mounting adapter kit.
What is the difference between the HJL26040 and the HDL26040 or HGL26040?
The difference lies in the interrupting rating. The HJL has a 100kA rating at 240VAC, while the HDL is rated at 25kA and the HGL is rated at 65kA at the same voltage.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Square D HJL36040 - 40A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/9/26
Great Customer Service
Working with Superbreakers the team is so helpful. They answer the phone and are very accommodating. We had an issue with the refurbished breaker not working out and they helped get a new one out right away.