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Square D HJA36090 Molded Case Circuit Breaker

  • 90A
  • 3 Pole
  • I-Line
Square D HJA36090
Molded Case Circuit Breaker
Brand Square D
SKU HJA36090
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  • 90A
  • 3 Pole
  • I-Line

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Square D HJA36090 - 90A 3 Pole Molded Case Circuit Breaker

Square D HJA36090 - 90A 3 Pole Molded Case Circuit Breaker

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$801.93 In Stock

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Description

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.

Specifications

Key specifications
Brand Square D
Part Number HJA36090
Series HJA
Amperage 90A
Poles 3
Mounting Style I-Line
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 20kA @ 250VDC
Fit and installation
Frame Type HJA
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Switchboards
Wire Gauge 14 AWG - 3/0 AWG
Max Wire 3/0 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CE, CSA, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Current Limiting, Visual Trip Indicator, 80% Rated, Reverse Feed

Product FAQs

7 answers
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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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 1 review
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
1 review
  • ST
    Scott T.
    Flag of United States
    I recommend this product
    Rated 5 out of 5 stars
    7/27/20
    HJA breaker order

    always seems to have breakers in stock and ships fast my to go place for any type of breaker