Square D PLA34080U33A Molded Case Circuit Breaker
- 800A
- 3 Pole
- I-Line
Quantity
Square D PLA34080U33A - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for industrial applications, the Square D PLA34080U33A provides 800A of electronic trip circuit protection. It belongs to the PowerPacT P-frame family, delivering reliable power distribution. This breaker mounts into Square D I-Line panelboards and switchboards. It features an I-Line plug-on connection and is replaced by the PLA34080U33B model. Rated at 125kAIC at 240V, it utilizes a Micrologic 5.0 trip unit with adjustable Long-Time, Short-Time, and Instantaneous (LSI) functions.Specifications
| Brand | Square D |
|---|---|
| Part Number | PLA34080U33A |
| 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 | 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, Rating Plugs |
|---|---|
| Accessories | Micrologic 5.0 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
7 answersWhat does the U33A suffix mean in the PLA34080U33A catalog number?
The U33A suffix indicates the breaker is equipped with a Micrologic 5.0 electronic trip unit. This provides adjustable Long-Time, Short-Time, and Instantaneous (LSI) trip functions.
What wire size is supported by the standard lugs on this 800A breaker?
The factory-installed AL800M23K mechanical lugs accept three 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.
How does the I-Line mounting work on the PLA34080U33A?
This breaker features a plug-on line side that connects directly to the bus of Square D I-Line panelboards and switchboards. The load side utilizes standard mechanical lugs for wire termination.
What does the L in the PLA prefix designate?
The L indicates the interrupting capacity tier for this PowerPacT P-frame breaker. It is rated to safely interrupt up to 125kA at 240VAC, 100kA at 480VAC, and 25kA at 600VAC.
Are the trip settings on the PLA34080U33A adjustable?
Yes, the Micrologic 5.0 trip unit features adjustable dials for the Long-Time pickup and delay, Short-Time pickup and delay, and Instantaneous pickup, allowing for precise coordination with your electrical system.
Can this PowerPacT P-frame breaker replace older Square D 800A I-Line breakers?
Yes, it is the modern replacement for legacy 800A Square D I-Line breakers. However, because physical dimensions may differ from older frames, you must verify that your panelboard has adequate space.
Does the PLA34080U33A include a push-to-trip button?
Yes, it includes an integrated push-to-trip button on the front of the breaker. This allows you to manually trip the mechanism to verify proper operation during routine maintenance.
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