Square D NA361000 Molded Case Circuit Breaker
- 1000A
- 3 Pole
- I-Line
Quantity
Square D NA361000 - 1000A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Quantity
Square D NA361000 - 1000A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | NA361000-R |
| Series | NA |
| Amperage | 1000A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | (4) 3/0 AWG - 600 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Lugs (AL1200NA) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Trip-Free Mechanism |
Quantity
Square D NA361000 - 1000A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | NA361000-R |
| Series | NA |
| Amperage | 1000A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | (4) 3/0 AWG - 600 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Lugs (AL1200NA) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Trip-Free Mechanism |
Description
Built for demanding industrial environments, the Square D NA361000 provides reliable 1000A power distribution. This 3-pole molded case circuit breaker belongs to the proven N-Frame series. This unit installs into Square D I-Line panelboards and switchboards. When modernizing equipment, it crosses over to the newer PowerPact PJA36100U31A substitute. The breaker features a thermal-magnetic trip unit with long-time and instantaneous (LI) protection. It handles up to 600VAC and is fully HACR rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | NA361000-R |
| Series | NA |
| Amperage | 1000A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | (4) 3/0 AWG - 600 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Lugs (AL1200NA) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Trip-Free Mechanism |
Product FAQs
7 answersWhat type of panelboards is the NA361000 compatible with?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features a plug-on I-Line connection and is not compatible with standard QO, NF, or NQ panels.
How does the NA361000 mount into the panel?
It utilizes an I-Line style plug-in connection. The line side of the breaker pushes directly onto the I-Line bus stack, while the load side uses standard lug connections.
What size wire can the lugs on the NA361000 accept?
The standard lugs accept four 3/0 AWG to 600 kcmil aluminum or copper conductors per phase.
What does the LI trip function indicate on this breaker?
The LI designation means the thermal-magnetic trip unit provides Long-Time (L) protection for continuous overloads and Instantaneous (I) protection for short circuits.
Is the trip unit on the NA361000 adjustable?
Yes, it features a fixed thermal element for long-time overload protection and an adjustable magnetic element, allowing you to fine-tune the instantaneous short-circuit pickup level.
Is the NA361000 a current production model?
The NA361000 is a legacy N-Frame molded case circuit breaker. While exact replacements are still sourced for existing I-Line panels, modern Square D upgrades typically transition to the PowerPact P-Frame series.
Can I install this N-Frame breaker in a panel from a different manufacturer?
No. The NA361000 features a proprietary I-Line plug-on mounting design that is strictly for Square D I-Line panelboards and switchboards. It cannot be safely installed in Eaton, Siemens, or GE equipment.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 28 reviews.
- JMJimmy M.Verified BuyerReviewingFederal Pacific NA230 - 30A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/8/26NA230-30
Breaker arrived well packaged and sealed. Installed easily and working great for the customer.
- JEJames E.Verified BuyerReviewingFederal Pacific NA250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/23/26Satisfactory
Fast shipping and exactly as expected
- EDErik D.Verified BuyerReviewingFederal Pacific NA250 - 50A 2 Pole Miniature Circuit BreakerI do not recommend this productRated 1 out of 5 stars7/21/26Result of FP
Breakers were wrong size and could not be useful....lost monies.
- JLJeff L.Verified BuyerReviewingFederal Pacific NA20 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/22/26Hard to find breaker
Fit perfectly. Great service
- PPPaul P. J.Verified BuyerReviewingFederal Pacific NA20 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars12/27/25perfect ...
all is great in the universe the FP 20A Breaker worked perfect.