Engineered for heavy-duty applications, the Square D HDA260902 is a 2-pole, 90A molded case circuit breaker from the PowerPacT H-Frame lineup. It provides essential thermal-magnetic protection for commercial and industrial electrical systems. This breaker installs into compatible Square D I-Line panelboards and switchboards. It functions as an exact replacement for the discontinued FA26090AC breaker. The unit offers an AC phase connection and a solid 18kAIC interrupt rating at 480VAC.
Can I install the HDA260902 in a standard NQ or NF panelboard?
No. This breaker features an I-Line style plug-in connection. It is designed exclusively for Square D I-Line panelboards and switchboards.
What does the D in the HDA260902 part number indicate?
The D designates the interrupting rating tier within the PowerPacT H-Frame family. It indicates a standard interrupting capacity of 18 kA at 480 VAC. Higher tiers include G, J, and L.
How is the I-Line connection secured during installation?
The breaker features plug-on phase jaws that engage the I-Line bus stack. It is then secured to the panelboard mounting pan using a retaining bracket and screws to ensure a solid mechanical and electrical connection.
Are the thermal and magnetic trip settings adjustable on this breaker?
No. The HDA260902 uses a traditional thermal-magnetic trip unit with fixed long-time and fixed instantaneous trip settings. If you need adjustable settings, you must select a breaker with a Micrologic electronic trip unit.
Can I replace an older FA or FH series breaker with the HDA260902?
Yes. The PowerPacT H-Frame is the direct replacement for legacy F-Frame breakers like the FA26090 or FH26090. The I-Line mounting footprint is compatible, though the physical dimensions of the breaker case differ slightly.
Does this breaker provide visible trip indication?
Yes. The PowerPacT H-Frame features an over-center toggle mechanism. When the breaker trips due to an overcurrent or short circuit, the handle moves to a center position to provide clear visual confirmation.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 11 reviews.