Square D PGL36120U43A Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Unit Mount
Square D
PGL36120U43A
Molded Case Circuit Breaker
Brand
Square D
SKU
PGL36120U43A
Quantity
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Square D PGL36120U43A - 1200A 3 Pole Molded Case Circuit Breaker
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1200A 3 Pole Molded Case Circuit Breaker
1200A 3 Pole Molded Case Circuit Breaker
1200A 3 Pole Molded Case Circuit Breaker
Description
Built to handle complex coordination requirements, this 1200A Square D PowerPacT MCCB offers premium protection for commercial and industrial facilities. It is designed for unit-mount installation in P-Frame enclosures, QED switchboards, and Model 6 MCCs. The breaker is equipped with an advanced Micrologic 5.0A electronic trip unit, delivering adjustable long-time, short-time, and instantaneous (LSI) functions, an integrated ammeter, and zone selective interlocking (ZSI).Specifications
| Brand | Square D |
|---|---|
| Series | PGL |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Amperage Range | 480-1200A |
|---|
| Frame Type | P |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D P-Frame Enclosures, QED Switchboards, Model 6 Motor Control Centers |
| Wire Gauge | (4) 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 | Micrologic 5.0A Trip Unit (Factory Installed), Lugs |
| 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
9 answersWhat equipment is the PGL36120U43A circuit breaker designed to be installed in?
This 1200A PowerPacT P-Frame breaker is compatible with Square D P-Frame enclosures, QED switchboards, and Model 6 Motor Control Centers.
Which electronic trip unit is included with the PGL36120U43A?
This breaker features a Micrologic 5.0A electronic trip unit. It provides adjustable long-time, short-time, and instantaneous (LSI) protection functions to support complex coordination requirements.
What wire sizes are accepted by the lugs on this 1200A breaker?
The factory-installed lugs accept four 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.
Is the PGL36120U43A rated for 100 percent continuous current?
No, this specific catalog number is standard 80 percent rated. For a 100 percent rated version, you would need the equivalent breaker with a "C" in the suffix, such as PGL36120CU43A.
Can the trip settings on the PGL36120U43A be adjusted in the field?
Yes, the included Micrologic 5.0A electronic trip unit features adjustable long-time, short-time, and instantaneous (LSI) settings to meet specific system coordination requirements.
How does the PGL36120U43A mount into an enclosure?
This is a unit-mount, feed-thru circuit breaker. It secures directly to the backpan or mounting surface using mechanical fasteners, rather than plugging onto an I-Line bus.
Can I add field-installable accessories to this P-Frame breaker?
Yes, Square D PowerPacT P-Frame breakers support a wide range of common field-installable accessories, including shunt trips, undervoltage releases, and auxiliary switches.
What does the "G" in the PGL36120U43A catalog number indicate?
The "G" indicates the interrupting rating tier for this PowerPacT breaker. It signifies a maximum interrupting capacity of 65 kAIC at 240V, 35 kAIC at 480V, and 18 kAIC at 600V.
What does the "L" in the PGL prefix stand for?
The "L" indicates that this breaker is factory-equipped with mechanical lugs on both the line and load sides for a feed-thru connection.
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