Engineered to support existing infrastructure, this 80-amp Federal Pacific breaker delivers reliable thermal-magnetic protection. The three-phase design is tailored for commercial power distribution. It mounts seamlessly into classic NBLP panelboards, providing a drop-in solution that avoids panel upgrades. The NB380 serves as a verified substitute for this configuration. Delivering a 10kAIC rating at 240VAC, the unit includes factory-installed load side lugs for 4-1/0 AWG wiring.
Which panelboards accept the Federal Pacific NB232080 circuit breaker?
This breaker is engineered exclusively for legacy Federal Pacific NBLP commercial panelboards. It utilizes a bolt-on connection to secure directly to the panel bus.
Is the Federal Pacific NB232080 still in active production?
No. Federal Pacific Electric is defunct, and the NB series is obsolete. Available units are sourced from remaining legacy inventory to support existing infrastructure without requiring a full panel upgrade.
Are there alternate part numbers for the NB232080?
Yes. This 80-amp, 3-pole breaker is frequently identified by the shorter catalog number NB380. Both part numbers represent the exact same physical and electrical configuration.
What are the wire gauge requirements for the NB232080?
The factory-installed load lugs accommodate 4 AWG to 1/0 AWG wire. The terminals are rated for both aluminum and copper conductors.
Can the trip settings on the NB232080 be adjusted in the field?
No. The thermal-magnetic trip unit on this breaker is fixed, meaning the Long-Time and Instantaneous trip thresholds cannot be modified after installation.
Is the NB232080 compatible with FPE Stab-Lok residential load centers?
No. The NB series consists of commercial-grade bolt-on molded case circuit breakers. They will not fit residential Stab-Lok panels, which require proprietary plug-on connections.
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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.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 18 reviews.
Federal Pacific NB100 - 100A 2 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/2/26
100amp federal pacific breaker
So far the breaker works as expected
Just good to know some of these old federal are still available.
Thank you
SG
scott g.
Verified Buyer
Reviewing
Federal Pacific NB111020 - 20A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/26/26
Hard to find breakers
Had a project at a school built in the 1960’s and thought we were up a creek when confronted with ancient FPE commercial panels. Luckily we found what we needed with Suoerbreakers.
BF
Barry F.
Verified Buyer
Reviewing
Federal Pacific NB100 - 100A 2 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/13/26
Hard to find circuit breaker
Item was as described.
WW
William W.
Verified Buyer
Reviewing
Federal Pacific NB100 - 100A 2 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
3/9/26
Exactly what I needed.
Awesome! Packaging and delivery were good. Bolted in and worked perfectly!!)
GH
Gary H.
Verified Buyer
Reviewing
Federal Pacific NB125 - 125A 2 Pole Miniature Circuit Breaker