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Square D JJA36175 Molded Case Circuit Breaker

  • 175A
  • 3 Pole
  • I-Line
Square D JJA36175
Molded Case Circuit Breaker
Brand Square D
SKU JJA36175
Select Item Condition
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  • 175A
  • 3 Pole
  • I-Line

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Square D JJA36175 - 175A 3 Pole Molded Case Circuit Breaker

Square D JJA36175 - 175A 3 Pole Molded Case Circuit Breaker

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$1,479.99 In Stock

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Description

Engineered for commercial and industrial applications, the JJA36175 is a 3-pole MCCB from Square D's PowerPacT J-Frame lineup. It features a thermal-magnetic trip unit with long-time and instantaneous (LI) protection functions. This breaker installs into Square D I-Line panelboards and switchboards. It serves as an upgrade for legacy KC36175 and KH36175 breakers. Rated for 175A, it provides a 65kAIC interrupting rating at 480V. The unit includes a Visi-Trip indicator and is HACR rated.

Specifications

Key specifications
Brand Square D
Part Number JJA36175
Series JJA
Amperage 175A
Poles 3
Mounting Style I-Line
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 25kA @ 600VAC, 20kA @ 250VDC
Fit and installation
Frame Type JJA
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Square D I-Line Switchboards
Wire Gauge 4 AWG - 4/0 AWG (Al/Cu)
Max Wire 4/0 AWG
Min Wire 4 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, Rotary Handle, Lug Kits, Phase Barriers
Accessories Load Side Lugs
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CE, CSA, HACR, IEC, NEMA, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Current Limiting, Visual Trip Indicator, Non-Interchangeable Trip, Mercury Free, PVC Free

Product FAQs

5 answers
Is the JJA36175 rated for 100 percent continuous current?

No, the Square D JJA36175 carries a standard 80 percent continuous current rating [1.1.5]. For typical continuous duty applications, the maximum continuous load on this 175-amp breaker should not exceed 140 amps.

Can I adjust the trip settings on the JJA36175 breaker?

The thermal overload protection is fixed at 175 amps, but the instantaneous magnetic trip is adjustable. You can adjust the magnetic short-circuit response from a low setting of 875A up to a high setting of 1750A to coordinate properly with your electrical system.

Which older Square D circuit breakers does the JJA36175 replace?

This PowerPacT J-Frame circuit breaker serves as a direct upgrade and replacement for legacy Square D KC36175 and KH36175 breakers. It installs seamlessly into existing Square D I-Line panelboards and switchboards.

What is the phase connection configuration for this I-Line breaker?

The JJA36175 is factory configured for a standard ABC phase connection. The plug-on jaw connection attaches directly to the ABC bus bar configuration standard in Square D I-Line distribution equipment.

What are the torque specifications for the load side lugs on the JJA36175?

The standard mechanical load side lugs require a 5/16-inch hex bit torque wrench. When terminating your 4 AWG to 4/0 AWG copper or aluminum conductors, the lugs must be torqued to 225 lb-in to ensure a secure and compliant connection.

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Reviews

4.5
Rated 4.5 out of 5 stars
Based on 2 reviews
Rating
Ratings
2 reviews
  • CP
    Cody P.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    8/27/26
    Fast Delivery

    Breaker came perfectly packaged and well ahead of estimated date

  • JE
    Joshua E.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1/16/26
    Great product

    The product fit perfect into my main distribution panel.