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Square D PJA36060CU43A Molded Case Circuit Breaker
- 600A
- 3 Pole
- I-Line
Square D
PJA36060CU43A
Molded Case Circuit Breaker
Brand
Square D
SKU
PJA36060CU43A
Quantity
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Square D PJA36060CU43A - 600A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for demanding commercial and industrial applications, the Square D PJA36060CU43A is a 600A, 3-pole PowerPacT P-Frame MCCB. It features a factory-installed Micrologic 5.0A trip unit, providing adjustable Long-Time, Short-Time, and Instantaneous (LSI) protection along with integrated ammeter capabilities. Designed for I-Line panelboards and switchboards, this 100% rated breaker delivers 65kAIC at 480V and serves as a direct upgrade for legacy MA36060 and MH36060 breakers.Specifications
| Brand | Square D |
|---|---|
| Part Number | PJA36060CU43A |
| 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 | P |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Square D I-Line 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 5.0A |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, RoHS, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, True RMS Sensing, 100% Rated |
Product FAQs
7 answersWhich legacy Square D circuit breakers does the PJA36060CU43A replace?
The PJA36060CU43A serves as a direct upgrade for legacy 600A I-Line breakers, specifically replacing the MA36060 and MH36060 models.
What does the "C" suffix indicate in the PJA36060CU43A catalog number?
The "C" suffix designates this as a 100 percent rated circuit breaker. This allows the breaker to carry its full 600A continuous current rating without the standard 80 percent derating, provided it is installed in a properly sized enclosure with 90 degree Celsius rated wire.
What specific trip unit is included with the PJA36060CU43A?
This breaker is equipped with a factory-installed Micrologic 5.0 A electronic trip unit. The "A" designation indicates it includes an integrated ammeter, while providing adjustable Long-Time, Short-Time, and Instantaneous (LSI) protection.
What does the "J" in the PJA prefix signify?
The "J" indicates the interrupting rating tier for this PowerPacT P-Frame breaker. It provides a short circuit current rating of 100kA at 240VAC, 65kA at 480VAC, and 25kA at 600VAC.
What type of enclosures will accept the PJA36060CU43A breaker?
This PowerPacT P-Frame breaker features an I-Line style plug-on connection. It is designed exclusively for installation in Square D I-Line panelboards and switchboards.
What wire sizes are accepted by the load-side lugs on this 600A breaker?
The mechanical load-side lugs on the PJA36060CU43A accept three conductors per phase, ranging from 3/0 AWG to 500 kcmil. The lugs are rated for both aluminum and copper conductors.
Does the PJA36060CU43A provide ground fault protection?
No. The included Micrologic 5.0 A trip unit provides LSI functions only. If ground fault protection (LSIG) is required for your application, a breaker with a Micrologic 6.0 trip unit is necessary.
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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.