Square D JGA PowerPacT J Circu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,209.20
Square D JGA PowerPacT J Circuit Breaker, 3-Pole, 600VAC I-Line

Square D JGA PowerPacT J Circuit Breaker, 3-Pole, 600VAC I-Line

(No reviews yet) Write a Review

Model: JGA36150

In Stock (leaves warehouse same day if ordered before 3pm ET)

$3,209.20
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Square D JGA PowerPacT J Circuit Breaker, 3-Pole, 600VAC I-Line

The Square D PowerPacT J Circuit Breaker (JGA) is a 3-pole, 600VAC rated molded-case breaker built for reliable overload and short-circuit protection in industrial and commercial power distribution systems. Available with Motor FLA ratings from 150A to 225A, this PowerPacT J-Frame breaker features a thermal magnetic trip unit, I-Line connection for line-side mounting, and an 18kA interrupt rating designation, and is UL, CSA, and NOM listed for demanding electrical infrastructure.

Key Features

  • Configuration: 3-pole design for balanced protection across three-phase circuits.
  • Motor FLA Range: Available in 150A, 175A, 200A, and 225A Motor FLA ratings to match feeder and branch circuit load requirements.
  • Rated Operational Voltage (Ue): 600VAC, 50/60 Hz per IEC 60947-3, suitable for higher-voltage distribution systems.
  • Interrupt Rating (Ics): 18kA short-circuit rating referenced in the product designation, with published Ics values of 35kA at 380/440/415V AC and 65kA at 220/240V AC per IEC 60947-2.
  • I-Line Connection: Line-side I-Line connection mounted via an I-Line bracket, with lug terminals on the load side for straightforward busway installation.
  • Thermal Magnetic Trip: Thermal magnetic trip protection unit delivers dependable overload and short-circuit protection without auxiliary power.
  • Terminal Capacity: Accepts AWG 3/0...350 kcmil aluminum/copper terminals with a 25-25 N.m (95-185 mm²) tightening torque.
  • Insulation Rating: 750V Ui rated insulation voltage and 8kV Uimp rated impulse withstand voltage per IEC 60947-2.
  • Enclosure Protection: IP40 degree of protection on the front cover for added operator safety.
  • Environmental Range: Rated for ambient air temperatures of -25 to 70°C and operating altitudes up to 5000 m with derating (below 2000 m without derating).

Certifications & Compliance

  • UL Listed
  • CSA Certified
  • NOM Certified (NOM-003-SCFI-2000)
  • CE Marked
  • Complies with IEC 60947-2 and NEMA standards
  • HACR Rated Circuit Breaker Application
  • Suitable for Isolation per IEC 60947-2

Technical Specifications

  • Warranty Period: 18 months
  • Poles Description: 3P
  • Serviceability: No
  • China ROHS In Scope: Yes
  • Quality Labels: CE
  • Mercury Free: Yes
  • ROHS Eur In Scope: Yes
  • Recycled Metal Content At Cr Level: 0 %
  • With Recycled Cardboard: Yes
  • Without Single Use Plastic: Yes

Typical Applications

  • Industrial and Commercial Electrical Distribution
  • I-Line Panelboard and Switchboard Installations
  • Three-Phase Feeder and Branch Circuit Protection
  • OEM Control Panel Building
  • Overcurrent and Short-Circuit Protection for Distribution Equipment

Why Square D?

Square D PowerPacT J circuit breakers combine a thermal magnetic trip unit, IP40-rated front cover, and UL, CSA, and NOM certifications to deliver dependable, code-compliant circuit protection across the full 150A-225A Motor FLA lineup. With a 750V insulation rating, 8kV impulse withstand voltage, and I-Line connectivity built for demanding distribution equipment, this PowerPacT J-Frame breaker is engineered for the reliability professional electricians expect from Square D.

Manufacturer Resources

Product Specs

Product Type:
Circuit Breaker
Voltage Rating:
600V
Configuration:
3-Pole
Connection Type:
I-Line
Series:
PowerPacT J
Listing:
UL Listed
Department:
Electrical
Product Group:
Circuit Protection
Amperage Rating:
150A - 225A
Standards:
IEC 60947-2
Product Subgroup:
Circuit Breakers
Product Depth:
3.39 in
Product Width:
4.09 in
Product Height:
7.52 in

Square D JGA36150 – Frequently Asked Questions

1) Will the Square D JGA PowerPacT J breaker mount in an I-Line panelboard or does it need a bolt-on kit?
The JGA PowerPacT J is built for I-Line mounting. Its line side uses an I-Line connection mounted on an I-Line bracket, so it plugs onto the I-Line bus stabs in a Square D I-Line panelboard or switchboard. The load side is lug terminals, so field wiring lands there. If your enclosure is not I-Line bus, this is the wrong connection style for you.
2) What wire size will the JGA PowerPacT J load terminals take?
The load-side lugs accept AWG 3/0 through 350 kcmil, aluminum or copper, torqued to 25 N.m (95-185 mm2 conductors). That covers typical 200A and 225A copper and aluminum feeders without needing an adapter lug kit.
3) Can I use the Square D JGA on a 480V or 600V three-phase system?
Yes. The JGA is rated 600VAC, 50/60 Hz, so it covers 480Y/277V and 600V three-phase distribution as well as lower voltages. Insulation voltage is 750V Ui with an 8kV impulse withstand per IEC 60947-2.
4) Is the Square D JGA listed for use in a facility that requires UL and CSA breakers?
UL Listed, CSA Certified and NOM Certified (NOM-003-SCFI-2000), CE marked, and compliant with IEC 60947-2 and NEMA standards. It is also HACR rated and suitable for isolation per IEC 60947-2, which matters if you are using it as a disconnecting means.
5) What is the interrupting rating on the JGA PowerPacT J?
The JGA designation carries an 18kA interrupt rating reference, with published Ics values of 35kA at 380/415/440V AC and 65kA at 220/240V AC per IEC 60947-2. Check those against your available fault current at the point of installation before you commit the breaker to the job.
6) What is the closest non-Square D equivalent to the JGA PowerPacT J breaker for a 3-pole molded case application?
The ABB A2A150TT, an A2 Series 3-pole molded case circuit breaker, is the nearest cross-brand counterpart in form and pole count. The Square D JGA PowerPacT J is also a 3-pole molded case breaker, rated 600VAC with a 150A to 225A Motor FLA range, a thermal magnetic trip unit, and an I-Line line-side connection. The key difference to resolve before substituting is the connection method: the JGA mounts to an I-Line bracket for bus stab connection, so if the A2A150TT is used in that enclosure it must be provided with compatible mounting and connection hardware for the bus.
7) I only need to protect a small branch circuit, not a 200A feeder. Is there a simpler breaker than the JGA PowerPacT J?
Yes. The Square D JGA PowerPacT J is a 600VAC molded case breaker in the 150A to 225A Motor FLA range, sized for three-phase feeder and branch protection in distribution equipment. For small branch circuits, the Eaton BAB Quicklag three-pole industrial thermal-magnetic breaker is rated 240V and is a far smaller bolt-on device, as is the Eaton BAB1010 bolt-on thermal-magnetic breaker. For DIN-rail control work, the ABB ST200M Series miniature circuit breaker with a C-curve is a UL1077 supplementary protector rather than a branch-circuit breaker, so confirm the application allows a supplementary protector before specifying it.
8) Is a thermal magnetic trip unit good enough, or do I need an electronic trip breaker?
The JGA uses a thermal magnetic trip, which handles overload and short circuit protection with no auxiliary power and no settings to commission. That suits feeders, branch circuits and HACR motor applications where you do not need adjustable long-time, short-time or ground-fault pickup. If you need selective coordination tuning or ground-fault protection built into the breaker, specify an electronic trip J-frame instead.
9) Will the JGA breaker physically fit the space I have in my panel?
Each JGA is 7.52 inches high, 4.09 inches wide and 3.39 inches deep. On an I-Line bus that is a standard 3-pole J-frame footprint, so confirm your available bus length against the 7.52 inch dimension when stacking multiple breakers.
10) Can this breaker be installed outdoors or in a hot plant environment?
Ambient rating is -25 to 70 degrees C, and it will operate to 5000 m altitude with derating (no derating below 2000 m). The front cover is IP40, which guards against solid objects but not water, so the breaker itself needs a suitably rated enclosure for any wet or washdown location.
11) What are the alternatives to a Square D J-frame breaker from other brands?
For a 3-pole molded case breaker in the same general class, ABB offers the A2A150TT in the A2 Series, plus kit versions in the XT4 and XT5 series. Eaton's Series C K-Frame mining breaker is a 400A 3-pole with an interchangeable rating plug if you need a higher rating. Note that none of those use Square D I-Line mounting, so swapping brands into an I-Line panelboard is not a direct exchange. Do not substitute a Quicklag BAB (240V) or a Bussmann CBC/CBF automotive breaker for this duty, they are a different class entirely.
12) Can I use an ABB XT4 or XT5 3-pole breaker kit instead of a Square D JGA?
The ABB XT4 Series and XT5 3-pole molded case breaker kits are both three-pole molded case devices, so they cover the same general role as the Square D JGA PowerPacT J. The difference is how they land in the equipment. The JGA is built with an I-Line line-side connection on an I-Line bracket and lug terminals on the load side, which is what makes it drop into Square D I-Line panelboards and switchboards. The XT4 and XT5 kits are separate ABB frame sizes with their own mounting and terminal arrangements, so they suit new ABB-based assemblies rather than a retrofit into an existing I-Line bus.
13) Is the Eaton Series C K-Frame mining breaker a substitute for a Square D JGA?
They are not interchangeable. The Eaton 6602C72G67 is a Series C K-Frame mining circuit breaker rated 400A, 3-pole, with an interchangeable rating plug. The Square D JGA PowerPacT J is a J-Frame device covering 150A to 225A Motor FLA at 600VAC with a fixed thermal magnetic trip unit and an I-Line line-side connection. Different frame size, different ampere range, and a different trip arrangement, so the K-Frame would be chosen when a 400A rating and a field-changeable rating plug are required, not as a drop-in for a JGA.
14) Can the JGA PowerPacT J be repaired or rebuilt if it trips out and fails?
No. The JGA is listed as non-serviceable, so a failed unit is replaced rather than rebuilt. Plan on stocking a spare at the rating you use most if the circuit is critical.
15) I need a smaller branch breaker to go with this in a control panel, what should I look at?
For low-amp supplementary protection alongside a J-frame feeder breaker, the ABB ST200M Series miniature breaker with a C-curve is a UL1077 supplementary protector, commonly used on control circuits. Keep in mind UL1077 devices are supplementary protection, not branch circuit protection, so they do not replace the JGA's role in the distribution path.
How fast can I get the Square D JGA36150 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D JGA36150 come with a warranty?
Absolutely. The Square D JGA36150 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D JGA36150?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Square D JGA36150 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!