Part of the legacy N-Frame series, this 1200A electronic trip molded case circuit breaker delivers reliable commercial and industrial power distribution. Designed for Square D I-Line panelboards and switchboards, it utilizes a plug-on mounting style for secure installation. This unit is the predecessor to the modern PLA36120U31A replacement. It features a Micrologic standard trip unit with adjustable long-time and instantaneous (LI) protection settings for precise system coordination.
What type of panelboards accept the NE361200LI circuit breaker?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection on the line side for secure busbar mounting.
How much mounting space does this N-frame breaker require in an I-Line panel?
The NE361200LI requires 15 inches of mounting space within a compatible I-Line panelboard or switchboard.
What does the "LI" designation in the NE361200LI catalog number indicate?
The "LI" signifies that the breaker is equipped with a solid-state electronic trip unit featuring adjustable Long-Time and Instantaneous protection settings. This allows for precise coordination with other protective devices in the system.
What are the acceptable wire sizes for the load lugs on this 1200A breaker?
The standard load-side lugs accept either three or four 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.
Is the Square D NE361200LI still in active production?
The NE361200LI is part of the legacy N-frame series. For modern replacements, Square D has transitioned to the PowerPact P-frame series, such as the PLA36120U31A, which offers similar ratings and I-Line compatibility.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Federal Pacific NE233100 - 100A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
10/6/25
Had what we needed
needed an old FP breaker SP had it in stock. saved us from downtime
RV
Robert V.
Reviewing
Federal Pacific NE233050 - 50A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
5/5/22
Hard 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!!