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Square D PGA36080U43A Molded Case Circuit Breaker
- 800A
- 3 Pole
- I-Line
Square D
PGA36080U43A
Molded Case Circuit Breaker
Brand
Square D
SKU
PGA36080U43A
Quantity
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Square D PGA36080U43A - 800A 3 Pole Molded Case Circuit Breaker
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Description
Delivering maximum coordination flexibility, the Square D PGA36080U43A is a 3-pole, 800A electronic trip circuit breaker from the PowerPact P-Frame series. It is ideal for complex power networks. This I-Line breaker mounts into compatible Square D panelboards. It provides a modern replacement solution for older MA36800 legacy breakers. Featuring a Micrologic 5.0A trip unit, it provides fully adjustable LSI protection. The integrated ammeter and True RMS sensing deliver precise monitoring.Specifications
| Brand | Square D |
|---|---|
| Part Number | PGA36080U43A |
| Series | PGA |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Amperage Range | 320-800A |
|---|
| Frame Type | PGA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and 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, Motor Operator, Padlock Attachment, Communication Module |
|---|---|
| Accessories | Micrologic 5.0A 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, 80% Rated, True RMS Sensing, Ammeter |
Product FAQs
8 answersWhat panelboards are compatible with the PGA36080U43A?
This breaker features an I-Line style plug-in connection and is designed exclusively for use in Square D I-Line panelboards and switchboards.
Can the PGA36080U43A replace older Square D legacy breakers?
Yes, this PowerPacT P-frame breaker serves as a direct, modern replacement for the obsolete 800A M-frame MA36800 circuit breaker in existing I-Line systems.
What specific trip unit is indicated by the U43A suffix?
The U43A catalog designation means this breaker is equipped with a Micrologic 5.0 A electronic trip unit, which includes an integrated ammeter and True RMS sensing for precise power monitoring.
What does the LSI trip function provide on this breaker?
LSI indicates the electronic trip unit offers fully adjustable Long-time, Short-time, and Instantaneous protection settings, allowing for maximum coordination flexibility in complex power networks.
Does the PGA36080U43A include ground fault protection?
No, this model features an LSI trip unit. If your application requires equipment ground fault protection, you will need an LSIG trip unit, typically denoted by a U44A suffix.
How is the PGA36080U43A installed into the panel?
The line side utilizes a plug-on I-Line connection that snaps directly onto the panelboard bus, while the load side features mechanical lugs for hardwiring the outgoing circuit.
What are the wire size limits for the load side lugs?
The factory-installed mechanical lugs accept three conductors per phase, accommodating wire sizes from 3/0 AWG up to 500 kcmil for both aluminum and copper conductors.
Is the PGA36080U43A rated for 100 percent continuous current?
No, standard PowerPacT P-frame breakers like this model carry an 80 percent continuous current rating.
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