Square D JGL PowerPacT J-Frame...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,056.34
Square D JGL PowerPacT J-Frame 3-Pole Thermal Magnetic Circuit Breaker

Square D JGL PowerPacT J-Frame 3-Pole Thermal Magnetic Circuit Breaker

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Model: JGL36150

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

$3,056.34
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Square D JGL PowerPacT J-Frame 3-Pole Thermal Magnetic Circuit Breaker

The Square D JGL PowerPacT J-Frame 3-Pole Thermal Magnetic Circuit Breaker protects electrical systems from overloads and short circuits with a rated operational voltage (Ue) of 600 V AC and an 18kA short-circuit interrupt rating, built to IEC 60947-3 standards. This lug-connected breaker is offered across a Motor FLA range of 150A to 225A, letting you match trip protection to your specific motor or feeder load while sharing the same thermal magnetic trip platform, 3-pole configuration, and 600V AC rating across every option. The thermal magnetic trip unit is rated for 80% continuous duty and is suitable for industrial and commercial distribution applications. Line and load lugs accept AWG 3/0...350 kcmil aluminum/copper terminals with a 25-25 N.m tightening torque range.

Key Features

  • Motor FLA Range: Available in 150A, 200A, and 225A options to match load requirements.
  • Configuration: 3-Pole design for multi-phase circuit protection.
  • Trip Type: Thermal magnetic trip unit rated 80% for overload and short-circuit protection.
  • Electrical Connection: Line and load lugs accepting AWG 3/0...350 kcmil aluminum/copper terminals, 25-25 N.m tightening torque.
  • Voltage Rating: 600 V AC 50/60 Hz (Ue) rated operational voltage per IEC 60947-3; 750 V (Ui) rated insulation voltage per IEC 60947-2.
  • Interrupt Rating: 18kA short-circuit interrupt capacity.
  • Degree of Protection: Front cover rated IP40.
  • Circuit Breaker Application: HACR rated for heating, air conditioning, and refrigeration equipment.
  • Isolation: Suitable for isolation per IEC 60947-2.

Certifications & Compliance

  • UL Listed
  • CSA Certified
  • NOM Certified
  • CE Marked
  • IEC 60947-2 Compliant
  • NEMA Standards
  • NOM-003-SCFI-2000

Technical Specifications

  • Poles Description: 3P
  • Warranty Period: 18 months
  • Ambient Air Temperature For Operation: -25-70 °C
  • Control Type: Toggle
  • Device Type: LV equipment - Low voltage circuit breaker
  • Product Or Component Type: Circuit Breaker
  • Mercury Free: Yes
  • China ROHS In Scope: Yes

Typical Applications

  • Industrial and Commercial Electrical Distribution
  • Panelboard and Switchboard Circuit Protection
  • Motor and Feeder Circuit Protection
  • HACR-Rated Heating and Air Conditioning Circuits
  • Multi-Phase Industrial Equipment Protection

Why Square D?

Square D PowerPacT J-Frame circuit breakers combine UL, CSA, and NOM certification with IEC 60947-2 compliance for dependable, code-compliant overcurrent protection. Thermal magnetic trip protection, robust lug terminations, and a 150A-225A Motor FLA range make this breaker a reliable choice for demanding industrial and commercial electrical installations.

Manufacturer Resources

Product Specs

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

Square D JGL36150 – Frequently Asked Questions

1) What wire size do the lugs on the Square D JGL PowerPacT J breaker accept?
Line and load lugs on the JGL PowerPacT J-Frame breaker take AWG 3/0 through 350 kcmil, aluminum or copper, torqued to 25 N.m. If your feeder conductors fall outside that range, or you are landing on bus rather than cable, you need a different termination arrangement - this version ships lug-connected only.
2) Is an 18kA interrupting rating enough for my panel?
The JGL carries an 18kA short-circuit interrupting rating at 600V AC. That covers many commercial feeders, but if the available fault current at your point of installation exceeds 18kA, this breaker is not code-compliant there without series rating documentation. Get the fault current calculation at the bus before committing.
3) Will the Square D JGL work on a 480V three-phase motor feeder?
Yes. The JGL is a 3-pole breaker rated 600V AC 50/60 Hz, so 480V and 240V three-phase feeders are both within rating. Motor FLA coverage runs 150A to 225A, and it is HACR rated for heating, air conditioning and refrigeration equipment.
4) Which JGL amp rating should I order for my motor?
Three Motor FLA options: 150A (JGL36150), 200A (JGL36200), and 225A (JGL36225). Pick the one that matches the full-load amps of the motor or feeder you are protecting. All three share the same thermal magnetic trip unit, 3-pole frame, and 600V AC rating, so the only decision is the trip size.
5) What should I use instead of a Square D JGL breaker if the feeder is above 225A?
The Square D JGL PowerPacT J-frame covers a 150A, 200A, and 225A motor FLA range as the JGL36150, JGL36200, and JGL36225, so a feeder above 225A needs a larger frame. In the comparable set, the Eaton Series C K-frame mining circuit breaker is a 400A 3-pole device with an interchangeable rating plug, and the ABB XT5 series 3-pole breaker kit is the larger of ABB's two XT frames here. Match the interrupting rating and enclosure space to your one-line before selecting.
6) How much space does the Square D JGL J-Frame breaker need in the enclosure?
The breaker measures 7.52 in height, 4.09 in width, and 3.39 in depth. Add room for the lug terminations and conductor bending space for 3/0 to 350 kcmil cable, which is usually what governs enclosure depth rather than the breaker body.
7) Can the JGL be installed in an unheated or outdoor-rated enclosure?
Operating ambient range is -25 to 70 degrees C, so unheated mechanical rooms and most outdoor enclosures are within spec. The breaker itself is only IP40 at the front cover, which means it relies on the enclosure for any water or dust protection.
8) Does the Square D JGL meet UL and IEC requirements for an institutional spec?
The JGL is UL Listed, CSA Certified, NOM Certified (NOM-003-SCFI-2000), CE marked, and compliant with IEC 60947-2, including suitability for isolation. Insulation voltage (Ui) is 750V. It also meets NEMA standards and is mercury free. Country of origin is Mexico.
9) Thermal magnetic or electronic trip for a 225A motor feeder?
Thermal magnetic, like the JGL uses, is the straightforward choice when you want fixed overload and instantaneous short-circuit protection sized to a known load. Electronic trip units earn their cost when you need adjustable long-time, short-time and ground fault settings for selective coordination in a multi-tier distribution system. For a single motor or feeder at a fixed FLA between 150A and 225A, the thermal magnetic JGL does the job without setup.
10) What other 3-pole molded case breakers could I use instead of the Square D JGL?
For a comparable frame-size molded case breaker from another manufacturer, the ABB A2A150TT in the A2 Series is a 3-pole molded case breaker, and ABB's XT4 and XT5 3-pole kits cover adjacent frame sizes. Eaton's Series C K-Frame mining breaker is a 400A 3-pole unit with an interchangeable rating plug if you need a larger frame with field-changeable trip. Note that substituting brands usually means new panel mounting and connection hardware, so the JGL is the direct choice where a Square D J-Frame is already in place.
11) Is the Eaton BAB Quicklag a substitute for the Square D JGL?
No. The Eaton BAB Quicklag 3-pole is a 240V bolt-on branch breaker, a much smaller class of device than the JGL. The JGL is a 600V J-Frame molded case breaker with 150A to 225A trip and 3/0 to 350 kcmil lugs. They are not interchangeable in either direction. Likewise the Bussmann CBC, CBF and CBS lines are 14VDC automotive breakers and have nothing to do with building distribution.
12) If I need a smaller branch-circuit breaker rather than a full J-frame, what is a simpler option than the Square D JGL?
The Square D JGL is a molded case J-frame device covering a 150A to 225A motor FLA range at 600V AC, which is more breaker than a small branch circuit needs. For low-amperage branch or control circuits, the ABB ST200M series is a miniature circuit breaker with a C-curve listed to UL 1077, and the Eaton BAB series Quicklag bolt-on is a thermal-magnetic panelboard breaker. Note that a UL 1077 device such as the ST200M is a supplementary protector, so verify it suits the application before using it where branch-circuit protection is required.
13) Does the Square D JGL come with an undervoltage release like the Eaton NZM accessory?
The Square D JGL PowerPacT J-frame is a toggle-operated thermal magnetic breaker with a trip unit rated 80% continuous, supplied with line and load lugs. The Eaton 10250T-GR is an undervoltage release accessory for Eaton NZM series molded case breakers, not a breaker itself, so it is an add-on for a different frame rather than an alternative to the JGL. If you need shunt or undervoltage tripping on a J-frame, specify a PowerPacT accessory made for that frame.
14) Is a Bussmann CBC or CBF circuit breaker an alternative to the Square D JGL?
No. The Bussmann CBC and CBC-B are Type I automotive circuit breakers rated 14VDC, and the CBF and CBS are Type II and automotive-family breakers as well. The Square D JGL is a 600V AC 3-pole low voltage molded case breaker for industrial and commercial distribution, panelboard and switchboard protection, and HACR-rated circuits. These are different voltage classes and different applications entirely, so there is no crossover.
How fast can I get the Square D JGL36150 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 JGL36150 come with a warranty?
Absolutely. The Square D JGL36150 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 JGL36150?
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
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