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Square D PJA36060U33A Molded Case Circuit Breaker
- 600A
- 3 Pole
- I-Line
Square D
PJA36060U33A
Molded Case Circuit Breaker
Brand
Square D
SKU
PJA36060U33A
Quantity
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Square D PJA36060U33A - 600A 3 Pole Molded Case Circuit Breaker
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Description
Built to handle complex coordination requirements, the Square D PJA36060U33A is a 600A, 3-pole PowerPacT P-Frame circuit breaker. It comes factory-equipped with a Micrologic 5.0 electronic trip unit, offering highly adjustable Long-Time, Short-Time, and Instantaneous (LSI) settings. This 80% rated breaker is designed for seamless integration into Square D I-Line panelboards and switchboards, providing a robust 65kAIC interrupting rating at 480V for heavy-duty industrial applications.Specifications
| Brand | Square D |
|---|---|
| Part Number | PJA36060U33A |
| Series | PJA |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Amperage Range | 240-600A |
|---|
| Frame Type | PJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | I-Line Panelboards, Switchboards |
| Wire Gauge | (3) 3/0 AWG-500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 5.0 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Communication Module |
|---|---|
| Accessories | Micrologic 5.0 Trip Unit (Factory Installed) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, 80% Rated, Interchangeable Trip Unit, True RMS Sensing |
Product FAQs
8 answersWhat panels accept the Square D PJA36060U33A breaker?
This breaker features an I-Line style plug-in connection, making it compatible with Square D I-Line panelboards and switchboards.
What does the U33A suffix mean on this breaker?
The U33A suffix indicates the breaker is equipped with a Micrologic 5.0 electronic trip unit. This provides fully adjustable Long-Time, Short-Time, and Instantaneous (LSI) overcurrent protection settings.
What size wire is accepted by the terminals on the PJA36060U33A?
The standard load-side mechanical lugs accept three 3/0 AWG to 500 kcmil aluminum or copper conductors per phase. The line side connects directly to the panel bus.
How are connections made on the PJA36060U33A?
The A in the PJA prefix indicates an I-Line mounting configuration. The line side features plug-on jaws that attach directly to an I-Line bus, while the load side uses traditional mechanical lugs.
Can the trip curve be modified on the PJA36060U33A?
Yes. Because it features a Micrologic 5.0 electronic trip unit, you can independently adjust the settings for Long-Time pickup and delay, Short-Time pickup and delay, and Instantaneous pickup to coordinate with your system requirements.
What does the J in the PJA36060U33A part number specify?
The J in the PJA prefix specifies the interrupting rating tier. J-rated PowerPacT P-frame breakers deliver 100kA at 240VAC, 65kA at 480VAC, and 25kA at 600VAC. Other letters like G or K would indicate lower or higher fault current capacities.
What frame size is the PJA36060U33A built on?
It is built on the Square D PowerPacT P-frame. While the P-frame has a maximum physical capacity of 1200 amps, this specific breaker is factory-equipped with a 600-amp sensor.
Does the PJA36060U33A require specific torque settings for the load lugs?
Yes. To ensure a safe and reliable connection, the load-side lugs must be tightened to the manufacturer specifications printed directly on the breaker label. Improper torque can lead to dangerous thermal issues or equipment failure.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- TGTroy G.Verified BuyerReviewingSquare D PJA36120U44A - 1200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/21/25Help with flood conditions
The whole process with Technitrol was Awesome. Jim the owner was extremely helpful he caught some problems with one of the breakers that I didn't notice very helpful. James and Collin were great also. The whole company really step up helping me determine what path I should take to replace/refurbish breakers that went through a flood. I never experienced a flood like this they were an awesome resource and help to me and my employer the City of Wauwatosa
- RNRoss N.ReviewingSquare D PJA36080CU31A - 800A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/12/22Stock!
Superbreakers has gotten my company out of a few binds recently. When stock is unavailable at my local supplier I've been turning to Superbreakers to save the day. Great customer service and timely shipments.