Square D PLA34080U31A Molded Case Circuit Breaker
- 800A
- 3 Pole
- I-Line
Quantity
Square D PLA34080U31A - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
The PLA34080U31A is a high-performance 3-pole, 800A molded case circuit breaker belonging to the Square D PowerPacT P-Frame series. Built for demanding commercial and industrial environments, it provides advanced circuit protection. This breaker mounts into Square D I-Line panelboards and switchboards, offering a streamlined plug-on installation. Featuring a Micrologic 3.0 electronic trip unit, it allows for adjustable LI settings. It boasts a 100 kAIC interrupting rating at 480VAC.Specifications
| Brand | Square D |
|---|---|
| Series | PLA |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 125kA @ 240VAC, 100kA @ 480VAC |
| Amperage Range | 320-800A |
|---|
| 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 | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 3.0 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Communication Module, Rating Plugs |
|---|---|
| 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 | HACR Rated, Current Limiting, True RMS Sensing, 80% Rated |
Product FAQs
6 answersWhat type of enclosures or panels accept the PLA34080U31A breaker?
This P-frame breaker is designed specifically for Square D I-Line panelboards and switchboards. It features an I-Line plug-in connection on the line side for direct bus mounting.
What are the wire size requirements for the load lugs on the PLA34080U31A?
The load-side mechanical lugs accept three 3/0 AWG to 500 kcmil conductors per phase. These terminals are compatible with both aluminum and copper wiring.
What does the U31A suffix mean in the PLA34080U31A catalog number?
The U31A suffix indicates that the breaker is equipped with a Micrologic 3.0 electronic trip unit. This specific trip unit provides adjustable Long-Time and Instantaneous (LI) protection functions.
Is the trip unit on the PLA34080U31A field-replaceable?
Yes. Square D PowerPacT P-frame breakers feature interchangeable Micrologic trip units. This allows panel builders and electricians to swap or upgrade the trip unit in the field without replacing the entire breaker frame.
How can I manually test the mechanical tripping mechanism on the PLA34080U31A?
The breaker features an integral push-to-trip button located on the front cover. Pressing this button manually opens the contacts to verify that the mechanical tripping linkage is operating correctly.
How are the line and load connections configured on the PLA34080U31A?
The line side features an I-Line plug-in jaw assembly that connects directly to the panelboard bus. The load side is equipped with mechanical lugs for terminating outgoing conductors.
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