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Square D HJL36100U44X Molded Case Circuit Breaker

  • 100A
  • 3 Pole
  • Unit Mount
Square D HJL36100U44X
Molded Case Circuit Breaker
Brand Square D
SKU HJL36100U44X
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  • 100A
  • 3 Pole
  • Unit Mount

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Square D HJL36100U44X - 100A 3 Pole Molded Case Circuit Breaker

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$4,640.00 Check Stock

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Description

Built for demanding industrial environments, the Square D HJL36100U44X is a 100A, 3-pole PowerPacT H-Frame molded case circuit breaker. It provides advanced overcurrent and ground fault protection for commercial facilities. Designed for unit-mount configurations, this breaker integrates into industrial control panels and switchboards. It features a Micrologic 6.2A electronic trip unit with adjustable LSIG settings and an integrated ammeter for precise monitoring.

Specifications

Key specifications
Brand Square D
Part Number HJL36100U44X
Series HJL
Amperage 100A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC
Electrical ratings
Amperage Range 40-100A
Fit and installation
Frame Type HJL
Terminal Type Lugs
For Use With Industrial Control Panels, Switchboards, Motor Control Centers, PowerPacT H-Frame Enclosures
Wire Gauge 14 AWG - 3/0 AWG (Al/Cu)
Max Wire 3/0 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Electronic Trip
Trip Function Code LSIG
Trip Function Long-Time, Short-Time, Instantaneous, Ground Fault
Trip Adjustability Adjustable
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Rotary Handle, Motor Operator, Padlock Attachment
Accessories Micrologic 6.2 A Trip Unit
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CCC, CE, CSA, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features Current Limiting, HACR Rated, Visual Trip Indicator, True RMS Sensing, Mercury Free, PVC Free, RoHS Compliant

Product FAQs

6 answers
What does the U44X suffix indicate on this PowerPacT breaker?

The U44X suffix specifies that the breaker is equipped with a Micrologic 6.2 A electronic trip unit. This provides adjustable Long-Time, Short-Time, Instantaneous, and Ground-Fault (LSIG) protection, along with an integrated ammeter for current monitoring.

What is the difference between the Square D HJL36100U44X and the HJA36100U44X?

Both are 100A, 3-pole PowerPacT H-Frame breakers with a J-interrupting rating and Micrologic 6.2 A trip units. The difference is the mounting style: the HJL36100U44X is a unit-mount (feed-thru) breaker with lugs, while the HJA36100U44X is designed for I-Line plug-in panelboards.

Can the HJL36100U44X be reverse fed?

Yes, this unit-mount breaker is suitable for reverse-fed applications. It features a feed-thru design with line and load side lug terminals, allowing the load side to be used as the line side when required by the installation design.

What types of enclosures and panels are compatible with the HJL36100U44X?

This unit-mount breaker is designed for integration into industrial control panels, switchboards, motor control centers (MCCs), and standard PowerPacT H-Frame enclosures.

Is the HJL36100U44X classified as a current-limiting circuit breaker?

Yes, PowerPacT H-Frame breakers with the J interrupting rating (such as the HJL series) are UL Certified as current-limiting circuit breakers, providing enhanced protection against high fault currents.

Are Square D and Schneider Electric HJL36100U44X breakers the same?

Yes. Square D is a brand owned by Schneider Electric. The HJL36100U44X is manufactured and marketed under both the Square D and Schneider Electric names, and the products are identical.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 1 review
Rating
Ratings
1 review
  • KL
    Kari L.
    Verified Buyer
    Reviewing
    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.