Built for demanding industrial environments, this 90A PowerPacT breaker delivers robust thermal-magnetic overcurrent protection. Designed specifically for Square D I-Line panelboards, the plug-on phase connection ensures secure installation. It acts as a seamless upgrade path for older FA36090, FC36090, and FH36090 models. The H-Frame construction offers a fixed thermal hold with an adjustable magnetic trip, allowing precise coordination while maintaining a 65kA interrupting capacity at 480V.
Does the HJA36090 replace older Square D F-frame breakers?
Yes, the PowerPacT H-frame serves as a direct plug-on upgrade for obsolete 90A, 3-pole I-Line models, providing a seamless replacement for legacy catalog numbers like the FA36090, FC36090, and FH36090.
What type of panelboard is compatible with this circuit breaker?
This I-Line style breaker is designed exclusively for plug-on installation in Square D I-Line panelboards and switchboards. It connects directly to the panel bus on the line side via plug-on jaws and uses traditional mechanical lugs on the load side.
Are the magnetic trip settings adjustable on the HJA36090?
No, this specific thermal-magnetic breaker features a fixed magnetic trip unit. It has a factory-set magnetic hold current of 800A and a magnetic trip current of 1450A.
Is this an 80% or 100% continuous rated breaker?
The HJA36090 is a standard 80% rated circuit breaker. Per NEC guidelines for this class, continuous loads should not exceed 80% of its nominal 90A capacity, which equals a 72A maximum continuous load.
Are the load lugs included, and what type of wire do they accept?
Yes, the breaker comes standard with factory-installed AL150HD load lugs on the bottom. These dual-rated lugs safely accept either aluminum or copper conductors ranging from 14 AWG to 3/0 AWG.
Is this circuit breaker rated for HVAC applications?
Yes, like all standard thermal-magnetic PowerPacT H-frame breakers, it is HACR rated for safe use with heating, air conditioning, and refrigeration equipment.
Does this breaker feature a manual testing mechanism?
Yes, it includes an integral push-to-trip button on the front cover. This allows panel builders and maintenance personnel to manually test the tripping mechanism and verify that the handle clearly shifts to the tripped position.
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Review summary
Customers rate this product 5.0 out of 5 based on 1 review.