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Square D PJA36080 Molded Case Circuit Breaker
- 800A
- 3 Pole
- I-Line
Square D
PJA36080
Molded Case Circuit Breaker
Brand
Square D
SKU
PJA36080
Quantity
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Square D PJA36080 - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D PJA36080 - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | PJA36080 |
| 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 | 250-800A |
|---|
| Frame Type | PJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | I-Line Panelboards, 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 | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Trip Unit Model | ET 1.0I |
| 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, 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, Non-Interchangeable Trip |
Quantity
Square D PJA36080 - 800A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | PJA36080 |
| 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 | 250-800A |
|---|
| Frame Type | PJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | I-Line Panelboards, 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 | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Trip Unit Model | ET 1.0I |
| 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, 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, Non-Interchangeable Trip |
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Description
The Square D PJA36080 is an 800A, 3-pole molded case circuit breaker from the PowerPact P-Frame line. Built for industrial applications, it delivers robust protection using solid-state sensing. This unit installs into Square D I-Line panelboards and switchboards. The plug-on line terminations allow for straightforward integration into compatible systems. Rated 65 kAIC at 480V, it features a basic electronic trip unit with long-time and instantaneous (LI) settings. It is HACR and 80% rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | PJA36080 |
| 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 | 250-800A |
|---|
| Frame Type | PJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | I-Line Panelboards, 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 | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Trip Unit Model | ET 1.0I |
| 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, 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, Non-Interchangeable Trip |
Product FAQs
8 answersWhat does the "J" in the PJA36080 catalog number represent?
In the PowerPacT P-frame series, the "J" designates the interrupting rating tier. It provides a short-circuit interrupting capacity of 100 kA at 240 VAC, 65 kA at 480 VAC, and 25 kA at 600 VAC.
How does the PJA36080 differ from the PGA36080 or PLA36080?
The primary difference is the interrupting capacity. The PGA has a "G" rating (35 kA at 480 VAC), the PJA has a "J" rating (65 kA at 480 VAC), and the PLA features an "L" rating (100 kA at 480 VAC). They all share the same physical dimensions and 800A frame capacity.
Can this breaker be installed in standard QO or NF load centers?
No. The PJA36080 features an I-Line style plug-in connection and is exclusively designed for use in Square D I-Line panelboards and switchboards.
How does the I-Line connection mount to the panel bus?
I-Line breakers feature a plug-on line side and mechanical lugs on the load side. The breaker jaws push directly onto the panel bus stack, eliminating the need for separate line-side cabling and hardware.
What type of electronic trip unit is equipped on the PJA36080?
This breaker includes a basic ET 1.0I electronic trip unit featuring LI (Long-Time and Instantaneous) functions. It offers fixed long-time protection and adjustable instantaneous pick-up settings.
Can I upgrade or field-swap the trip unit on this specific breaker?
No. The basic ET 1.0I electronic trip unit installed on the PJA36080 is fixed and non-interchangeable. Field-interchangeable trip units are only available on P-frame breakers equipped with the advanced MicroLogic series trip units.
What is the recommended tightening torque for the load lugs on the PJA36080?
For the standard factory lugs accepting 3/0 AWG to 500 kcmil wire, the recommended tightening torque is 442.5 lb-in (50 N-m).
Does the PJA36080 offer ground fault protection?
No. The basic LI trip unit on this breaker provides protection against standard overloads and short circuits, but it does not feature integrated ground fault (LSIG) or short-time (LS) protection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- TGTroy G.Verified BuyerReviewingSquare D PJA36120U44A - 1200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/21/25Help with flood conditions
The whole process with Technitrol was Awesome. Jim the owner was extremely helpful he caught some problems with one of the breakers that I didn't notice very helpful. James and Collin were great also. The whole company really step up helping me determine what path I should take to replace/refurbish breakers that went through a flood. I never experienced a flood like this they were an awesome resource and help to me and my employer the City of Wauwatosa
- RNRoss N.ReviewingSquare D PJA36080CU31A - 800A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/12/22Stock!
Superbreakers has gotten my company out of a few binds recently. When stock is unavailable at my local supplier I've been turning to Superbreakers to save the day. Great customer service and timely shipments.