Schneider Electric / Square DPJL36120U44A
Square D PJL36080CU31A Molded Case Circuit Breaker
- 800A
- 3 Pole
- Unit Mount
Square D
PJL36080CU31A
Molded Case Circuit Breaker
Brand
Square D
SKU
PJL36080CU31A
Quantity
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Square D PJL36080CU31A - 800A 3 Pole Molded Case Circuit Breaker
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Description
Part of the PowerPacT P-Frame series, the Square D PJL36080CU31A is an 800A, 3-pole MCCB built for industrial power distribution. It features a 100% continuous current rating. This unit-mount breaker installs into Square D QED switchboards and P-Frame enclosures. It also serves as a drop-in upgrade for legacy PE800 models. Equipped with a Micrologic 3.0 trip unit, it delivers adjustable long-time and instantaneous (LI) protection with true RMS sensing.Specifications
| Brand | Square D |
|---|---|
| Part Number | PJL36080CU31A |
| Series | PJL |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | PJL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D QED Switchboards, Motor Control Centers, PowerPacT P-Frame Enclosures |
| 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 | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment |
|---|---|
| Accessories | Micrologic 3.0 Trip Unit |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | 100% Rated, HACR Rated, True RMS Sensing |
Product FAQs
7 answersWhat does the C in the PJL36080CU31A part number signify?
The C indicates this breaker is 100 percent rated. This means it can carry its full 800A continuous current capacity without the standard 80 percent derating required for conventional circuit breakers.
Which trip unit is installed in the PJL36080CU31A?
This model features a standard Micrologic 3.0 electronic trip unit. It provides adjustable long-time and instantaneous protection, commonly referred to as LI functions.
Are the trip functions on the PJL36080CU31A adjustable?
Yes. The Micrologic 3.0 solid state trip unit allows you to adjust both the long-time pickup and instantaneous settings to ensure precise system coordination.
Can this PJL breaker be installed into an I-Line panelboard?
No. The PJL36080CU31A is a unit mount, feed-thru breaker equipped with mechanical lugs on both the line and load sides. It does not have the plug-on jaws required for I-Line distribution gear.
What are the wire gauge requirements for the standard lugs on this 800A breaker?
The factory installed lugs accept three 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.
Can the PJL36080CU31A be used to replace legacy Square D 800A breakers?
Yes, PowerPacT P-frame unit mount breakers can serve as drop-in upgrades for legacy Square D PE800 or PE frame models in most switchboard applications.
Does the Micrologic 3.0 trip unit provide ground fault protection?
No. The U31A designation indicates a Micrologic 3.0 trip unit, which offers only long-time and instantaneous (LI) protection. It does not include integral ground fault functions.
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