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Square D HGA36100U31X Molded Case Circuit Breaker

  • 100A
  • 3 Pole
  • I-Line
Square D HGA36100U31X
Molded Case Circuit Breaker
Brand Square D
SKU HGA36100U31X
Select Item Condition
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  • 100A
  • 3 Pole
  • I-Line

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Square D HGA36100U31X - 100A 3 Pole Molded Case Circuit Breaker

Square D HGA36100U31X - 100A 3 Pole Molded Case Circuit Breaker

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$1,566.00 In Stock

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Description

Providing microprocessor-based accuracy, the Square D HGA36100U31X is a 3-pole, 100A electronic trip MCCB. As part of the PowerPacT H-Frame lineup, it offers superior true RMS sensing compared to traditional thermal-magnetic alternatives. This unit mounts seamlessly into Square D I-Line panelboards for rapid deployment. Equipped with a Micrologic 3.2 trip unit, it features adjustable LI protection and delivers a robust 35kAIC rating at 480VAC, ensuring dependable current-limiting performance.

Specifications

Key specifications
Brand Square D
Part Number HGA36100U31X
Series HGA
Amperage 100A
Poles 3
Mounting Style I-Line
Voltage 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC
Phase 3
AIC Rating 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC
Electrical ratings
Amperage Range 25-100A
Fit and installation
Frame Type HGA
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Switchboards
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 LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Adjustable
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Communication Module
Accessories Load Side Lugs Included
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 HACR Rated, Current Limiting, Visual Trip Indicator, True RMS Sensing, 80% Rated

Product FAQs

9 answers
Which panelboards are compatible with the HGA36100U31X?

This I-Line style plug-in breaker is designed exclusively for use in Square D I-Line panelboards and switchboards.

Is this circuit breaker compatible with field-installable internal accessories?

Yes, PowerPacT H-Frame breakers can be equipped with various internal accessories, including auxiliary switches, alarm switches, shunt trips, and undervoltage releases.

What does the G in the HGA frame designation indicate?

The G indicates the breaker's interrupting capacity level within the PowerPacT H-Frame family. For this specific model, it provides a 65kAIC rating at 240VAC, 35kAIC at 480VAC, and 18kAIC at 600VAC.

Is this circuit breaker 100% rated for continuous load?

No, this specific model is standard-rated for continuous operation at 80% of its 100A nameplate capacity.

What type of trip unit is installed in this breaker?

It features a solid-state MicroLogic 3.2 electronic trip unit, which offers more precise true RMS current sensing compared to traditional thermal-magnetic trip units.

Which specific trip functions can be adjusted on this model?

The MicroLogic 3.2 unit provides adjustable Long-Time (L) and Instantaneous (I) protection settings to closely coordinate with downstream electrical loads and customize the tripping threshold.

Is there a thermal-magnetic version of the HGA36100U31X available?

Yes. If you prefer fixed thermal-magnetic protection without the electronic MicroLogic trip unit, you can substitute the Square D HGA36100. It offers the exact same 100A rating, 3-pole configuration, and I-Line connection format.

What is the phase configuration for mounting this breaker to the bus?

This unit is factory-configured for standard ABC phasing on the I-Line bus.

How do the line and load connections differ for installation?

As an I-Line breaker, the line side mounts directly onto the panelboard bus using a plug-on jaw connection. The load side is equipped with mechanical lugs designed to terminate field wiring from 14 AWG to 3/0 AWG.

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