Built for heavy-duty industrial environments, the Square D FHL26035 is a 2-pole, 35A molded case circuit breaker. It delivers robust long-time and instantaneous (LI) protection for 600VAC systems. Designed for unit mounting, it integrates easily into Square D panelboards and enclosures. This legacy F-frame breaker is ideal for maintaining existing infrastructure, with the PowerPact HGL26035 serving as its modern substitute. It offers a 25kAIC rating at 480V and features fixed trip settings.
What is the difference between the Square D FAL26035 and FHL26035?
Both are 35A, 2-pole F-frame circuit breakers, but the FHL series features a higher interrupting capacity. The FHL provides up to 65kA at 240V AC and 25kA at 480V AC, whereas the standard FAL series has lower short-circuit ratings.
How does the FHL26035 mount into an electrical system?
This is a unit-mount circuit breaker, meaning it bolts directly to a backpan or mounting plate in control panels, switchboards, or standalone enclosures. It does not plug onto a busbar or use the Square D I-Line mounting system.
What wire sizes are compatible with the lugs on this 35A breaker?
The factory-installed line and load lugs accept 14 to 1/0 AWG copper wire or 12 to 1/0 AWG aluminum wire. Ensure proper torque specifications are followed during installation as outlined on the breaker faceplate.
Can this breaker be used in DC voltage applications?
Yes, the FHL26035 is rated for direct current applications up to 250V DC, providing a 10kA interrupting capacity for industrial control or battery systems.
Is the FHL26035 a current production model or a legacy breaker?
The F-frame series is a legacy product family that has been phased out by Schneider Electric in favor of the newer PowerPact H-frame series. However, exact replacements like the FHL26035 are often required to maintain existing UL-listed control panels without modifying the mounting footprint.
Are the thermal and magnetic trip settings adjustable on this unit?
No, this breaker features a fixed thermal and fixed magnetic trip unit. It provides standard long-time and instantaneous protection functions that cannot be field-adjusted.
Can I use this 2-pole breaker in a 3-phase system?
Yes, a 2-pole breaker can be utilized in a 3-phase system to feed single-phase loads. It will occupy two spaces or phases on the distribution block or panelboard.
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Review summary
Customers rate this product 4.7 out of 5 based on 3 reviews.