Square D PJP36120U31A Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Unit Mount
Square D
PJP36120U31A
Molded Case Circuit Breaker
Brand
Square D
SKU
PJP36120U31A
Quantity
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Square D PJP36120U31A - 1200A 3 Pole Molded Case Circuit Breaker
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1200A 3 Pole Molded Case Circuit Breaker
1200A 3 Pole Molded Case Circuit Breaker
1200A 3 Pole Molded Case Circuit Breaker
Description
Part of the PowerPacT P-Frame series, the Square D PJP36120U31A is a 1200A, 3-pole molded case circuit breaker built for industrial environments. This unit-mount MCCB installs into Square D QED switchboards and Model 6 motor control centers. It accepts 3/0 AWG to 500 kcmil wiring via lug terminals. Equipped with a MicroLogic 3.0 trip unit, it delivers adjustable long-time and instantaneous (LI) protection. It features true RMS sensing and a 65kAIC rating at 480VAC.Specifications
| Brand | Square D |
|---|---|
| Series | PJP |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | PJP |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D QED Switchboards, Model 6 Motor Control Centers |
| Wire Gauge | (4) 3/0 AWG-500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Communication Module |
|---|---|
| Accessories | MicroLogic 3.0 Trip Unit |
| Standards | CSA C22.2 No. 5, HACR, 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, True RMS Sensing, Interchangeable Trip Unit, 80% Rated |
Product FAQs
7 answersWhat trip unit is included with the PJP36120U31A?
It includes a MicroLogic 3.0 electronic trip unit, indicated by the U31A suffix, which provides adjustable long-time and instantaneous (LI) protection.
Which switchboards and motor control centers are compatible with this breaker?
It is compatible with Square D QED Switchboards and Model 6 Motor Control Centers.
What is the acceptable wire range for the lugs on this 1200A breaker?
The lugs accept four 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.
Can the PJP36120U31A be reverse fed?
Yes, standard unit mount PowerPacT P-frame breakers can be reverse fed. However, because it uses a MicroLogic electronic trip unit, the Reverse Power Flow protection setting must be disabled via the trip unit interface before energizing to prevent nuisance tripping.
What does the J in the PJP36120U31A catalog number signify?
The J indicates the interrupting rating tier: 100kA at 240VAC, 65kA at 480VAC, and 25kA at 600VAC.
Is the PJP36120U31A rated for 80 percent or 100 percent continuous current?
This breaker has a standard 80 percent continuous current rating. Square D models with a 100 percent rating include a C in the catalog number, such as PJP36120CU31A.
Does this breaker provide ground-fault protection?
No, the MicroLogic 3.0 trip unit provides long-time and instantaneous (LI) protection only. Applications requiring equipment ground-fault protection need a breaker with a MicroLogic 6.0 (LSIG) trip unit.
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