Free Shipping Over $99
Square D PJA36080CU43A Molded Case Circuit Breaker
- 800A
- 3 Pole
- I-Line
Square D
PJA36080CU43A
Molded Case Circuit Breaker
Brand
Square D
SKU
PJA36080CU43A
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D PJA36080CU43A - 800A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Similar Items
800A 3 Pole Molded Case Circuit Breaker
800A 3 Pole Molded Case Circuit Breaker
800A 3 Pole Molded Case Circuit Breaker
Description
Built for heavy-duty power distribution, this 800A, 3-pole MCCB is part of the Square D PowerPacT P-Frame family. It delivers reliable 100% rated continuous current. Designed with an I-Line mounting style, it fits into Square D panelboards and switchboards. This model is also a direct replacement for legacy MA36080 and MH36080 breakers. With a 65kAIC rating at 480V, it utilizes a Micrologic 5.0A trip unit to provide adjustable long-time, short-time, and instantaneous (LSI) protection.Specifications
| Brand | Square D |
|---|---|
| Series | PJA |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| 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 5.0A |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, RoHS, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, True RMS Sensing, 100% Rated |
Product FAQs
6 answersWhat type of panelboards is the PJA36080CU43A compatible with?
This breaker features an I-Line plug-in connection and is designed exclusively for use in Square D I-Line panelboards and switchboards. It is not compatible with standard unit-mount or load center applications.
What does the U43A in the PJA36080CU43A catalog number signify?
The U43A designates that the breaker is equipped with a Micrologic 5.0A electronic trip unit. This provides adjustable Long-Time, Short-Time, and Instantaneous (LSI) trip functions, along with an integrated ammeter for current monitoring.
Is the PJA36080CU43A rated for 100% continuous current?
Yes, the C in the catalog number indicates that this breaker is 100% rated. It can carry its full 800A continuous current rating, provided it is installed in an enclosure sized and ventilated for 100% rated applications.
What are the wire temperature requirements when applying this breaker at 100% of its continuous current rating?
When applied at 100% of its continuous current rating, you must use 90°C rated wire sized according to the 75°C ampacity column in the NEC.
Can the PJA36080CU43A replace older Square D 800A breakers?
Yes, this PowerPacT P-Frame breaker is a direct replacement for legacy Square D MA and MH frame breakers, such as the MA36080 and MH36080, in I-Line panelboards.
How much mounting space does this P-Frame breaker require in an I-Line panelboard?
PowerPacT P-Frame I-Line breakers require 9 inches of mounting space on the I-Line bus.
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.