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Square D NE361200LSG Molded Case Circuit Breaker
- 1200A
- 3 Pole
- I-Line
Square D
NE361200LSG
Molded Case Circuit Breaker
Brand
Square D
SKU
NE361200LSG
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Square D NE361200LSG - 1200A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for heavy-duty applications, the NE361200LSG is a 1200A, 3-pole molded case circuit breaker from Square D. It delivers reliable power distribution in industrial facilities. With an I-Line connection, it integrates seamlessly into Square D I-Line panelboards. For future upgrades, it is replaced by the PLA36120U64A. It utilizes a Micrologic trip unit with adjustable Long-Time, Short-Time, and Ground-Fault settings, offering a 100kAIC capacity at 480VAC.Specifications
| Brand | Square D |
|---|---|
| Part Number | NE361200LSG |
| Series | NE |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 100kA @ 480VAC, 65kA @ 600VAC |
| Frame Type | NE |
|---|---|
| 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 | Electronic Trip |
|---|---|
| Trip Function Code | LSIG |
| Trip Function | Long-Time, Short-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kits |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | 100% Rated, True RMS Sensing, Non-Interchangeable Trip, Ground Fault Protection |
Product FAQs
6 answersHow much mounting space does the NE361200LSG require in an I-Line panel?
As an N-frame circuit breaker, this model requires 15 inches of vertical mounting space within a compatible Square D I-Line panelboard or switchboard.
What is the modern replacement for the legacy Square D N-frame breakers?
Schneider Electric transitioned away from the legacy N-frame series, replacing them with the PowerPact P-frame series for 1200A applications. When upgrading an existing panel, you will need to verify the required I-Line mounting space and trip unit configurations before substituting a PowerPact P-frame breaker.
What are the advantages of the LSIG electronic trip unit on this breaker?
The solid-state trip unit allows for precise, field-adjustable coordination of Long-Time, Short-Time, Instantaneous, and Ground-Fault settings. This provides superior selective coordination for complex electrical systems compared to fixed thermal-magnetic trip units.
What size wire can the load-side lugs accommodate?
The factory mechanical lugs on the load side accept up to four conductors per phase. They are rated for wire sizes ranging from 3/0 AWG up to 600 kcmil and safely accept either copper or aluminum conductors.
How does this breaker connect to the panelboard bus?
The NE361200LSG uses a proprietary I-Line plug-on connection for the line side, which clamps directly onto the busbars of the panelboard. The load side utilizes standard mechanical lugs for terminating the branch or feeder cables.
Why is ground-fault protection included on this 1200A breaker?
The National Electrical Code (NEC) requires ground-fault protection of equipment (GFPE) for solidly grounded wye electrical services over 150 volts to ground (such as a 480/277V system) when the main disconnecting means is rated 1000 amps or higher. The 'G' in the LSIG trip unit satisfies this critical safety requirement.
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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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2 reviews
- KCKenny C.Verified BuyerReviewingFederal Pacific NE233100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/6/25Had what we needed
needed an old FP breaker SP had it in stock. saved us from downtime
- RVRobert V.ReviewingFederal Pacific NE233050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/5/22Hard to Find
It was a relief to find this working Federal Pacific CB for our church’s Main HVAC supply panel- We are in Florida and it is hot now! services and social events are happening in the cool of the restored AC- thank God!!