Square D PGL36080U43A Molded Case Circuit Breaker
- 800A
- 3 Pole
- Unit Mount
Square D
PGL36080U43A
Molded Case Circuit Breaker
Brand
Square D
SKU
PGL36080U43A
Quantity
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Square D PGL36080U43A - 800A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial and industrial electrical systems, the PGL36080U43A is a high-performance PowerPacT P-Frame molded case circuit breaker. This unit-mount breaker installs into Square D P-Frame enclosures, QED switchboards, and Model 6 motor control centers. It accepts 3/0 AWG to 500 kcmil wiring. Equipped with a Micrologic 5.0A electronic trip unit, it delivers adjustable Long-Time, Short-Time, and Instantaneous (LSI) protection alongside true RMS sensing and an integrated ammeter.Specifications
| Brand | Square D |
|---|---|
| Series | PGL |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Amperage Range | 320-800A |
|---|
| Frame Type | P |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D P-Frame Enclosures, QED Switchboards, Model 6 Motor Control Centers |
| 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 |
|---|---|
| Accessories | Lugs (AL800M23K), 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, Visual Trip Indicator, Zone Selective Interlocking |
Product FAQs
6 answersWhat does the U43A suffix in the PGL36080U43A catalog number mean?
The U43A suffix designates that the breaker is factory-equipped with a Micrologic 5.0A electronic trip unit. This specific module provides LSI (Long-time, Short-time, Instantaneous) trip functions and features a built-in ammeter for real-time phase current monitoring.
What do the LSI functions on the Micrologic 5.0A trip unit allow me to adjust?
The LSI trip unit enables independent configuration of the Long-time pickup and delay for precise overload protection, the Short-time pickup and delay for short-circuit coordination with downstream breakers, and the Instantaneous pickup for immediate, high-level fault clearing.
Does the Micrologic 5.0A trip unit in this breaker include ground fault protection?
No. The Micrologic 5.0A trip unit provides LSI protection only. If your application requires integrated equipment ground fault protection, you must specify a breaker equipped with an LSIG trip unit, such as the Micrologic 6.0A.
What is the replacement mechanical lug kit part number for this breaker?
The standard mechanical lug assembly for the 800A PowerPacT P-frame is catalog number AL800M23K. This kit accepts three 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.
How is this unit-mount breaker physically installed in a switchboard?
As a feed-thru, unit-mount breaker, the PGL36080U43A is mechanically fastened directly to the backpan or internal structural framing of compatible QED switchboards or P-frame enclosures, rather than plugging onto an I-Line busway.
Can the long-time trip threshold of this 800A breaker be lowered for smaller loads?
Yes. The Micrologic trip system uses interchangeable rating plugs combined with adjustable dial settings on the face of the unit. By adjusting the long-time pickup dial or installing a lower-value rating plug, the breaker can be de-rated to protect smaller downstream conductors.
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