Square D PGM36120CU31A Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Unit Mount
Square D
PGM36120CU31A
Molded Case Circuit Breaker
Brand
Square D
SKU
PGM36120CU31A
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D PGM36120CU31A - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
1200A 3 Pole Molded Case Circuit Breaker
1200A 3 Pole Molded Case Circuit Breaker
1200A 3 Pole Molded Case Circuit Breaker
Description
Designed for maximum capacity, this 100% rated 1200A molded case circuit breaker ensures continuous power delivery in commercial facilities. It incorporates a Micrologic 3.0 electronic trip unit, providing adjustable long-time and instantaneous protection. The unit-mount assembly installs into Square D QED switchboards and Model 6 motor control centers. It serves as an exact replacement for legacy LE36120 breakers. With a 35kA rating at 480VAC, it features true RMS sensing.Specifications
| Brand | Square D |
|---|---|
| Part Number | PGM36120CU31A |
| Series | PGM |
| 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 | PGL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D 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 | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Communication Module |
|---|---|
| Accessories | Line Side Lugs Included, Nut Keeper Kit |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | 100% Rated, HACR Rated, True RMS Sensing, Interchangeable Trip Unit |
Product FAQs
11 answersWhat equipment is the PGM36120CU31A breaker designed to be installed in?
This unit-mount PowerPacT P-frame breaker is designed for use in Square D QED switchboards and Model 6 Motor Control Centers (MCCs).
What size wire can the standard lugs on this breaker accept?
The factory-installed lugs accept four 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.
What does the "U31A" in the catalog number indicate?
The "U31A" designates a Micrologic 3.0 electronic trip unit, which provides adjustable long-time and instantaneous (LI) trip functions.
How do I adjust the trip settings on the PGM36120CU31A?
The Micrologic 3.0 electronic trip unit features adjustable dials on the front of the breaker to set the long-time pickup, long-time delay, and instantaneous pickup levels to coordinate with your system requirements.
Can I install the PGM36120CU31A in an I-Line panelboard?
No. This is a unit-mount (feed-thru) circuit breaker. For I-Line panelboard installations, you need an I-Line version of the PowerPacT P-frame, which typically features an "A" as the third character in the catalog number (e.g., PGA).
What does the "M" in the PGM36120CU31A catalog number signify for installation?
The "M" indicates the termination style. It comes factory-installed with mechanical lugs on the ON (line) side and a terminal nut kit on the OFF (load) side for bus connections.
Is the PGM36120CU31A rated for 100 percent continuous current?
Yes. The "C" in the catalog number indicates this breaker is 100 percent rated. When applied at 100 percent continuous current, it requires the use of 90 degrees C wire sized to the 75 degrees C NEC ampacity chart and a specially designed enclosure.
How can I identify the interrupting rating from the PGM36120CU31A catalog number?
The second letter, "G", indicates the interrupting rating tier. In the PowerPacT P-frame series, the G-tier provides 35kA at 480VAC and 65kA at 240VAC. If you need a higher interrupting capacity, look for J, K, or L tier breakers.
Does this breaker include ground fault protection?
No. The Micrologic 3.0 (U31A) trip unit only provides long-time and instantaneous (LI) protection. If your application requires equipment ground fault protection (LSIG), you will need a breaker equipped with a Micrologic 6.0 trip unit.
What do the numbers "36120" mean in the PGM36120CU31A catalog number?
These digits indicate the breaker core specifications: "3" stands for 3-pole, "6" indicates a maximum voltage rating of 600VAC, and "120" specifies the 1200A continuous current rating.
Can I swap the trip unit on the PGM36120CU31A?
Yes. The PowerPacT P-frame breakers feature interchangeable trip units. You can upgrade the standard Micrologic 3.0 trip unit to a more advanced version, such as a Micrologic 5.0 or 6.0, without replacing the entire breaker frame.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.