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Federal Pacific NA3P15 Miniature Circuit Breaker

  • 15A
  • 3 Pole
  • Plug-On
Federal Pacific NA3P15
Miniature Circuit Breaker
Brand Federal Pacific
SKU NA3P15
Select Item Condition
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  • 15A
  • 3 Pole
  • Plug-On

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Federal Pacific NA3P15 3 Pole Circuit Breaker

Federal Pacific NA3P15 - 15A 3 Pole Miniature Circuit Breaker

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$282.49 In Stock

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Description

Maintaining older electrical infrastructure requires exact-fit components like the NA3P15 miniature circuit breaker. This 15A, three-pole device is specifically manufactured to support legacy commercial and industrial applications utilizing the classic Stab-Lok system. It mounts into existing Federal Pacific panelboards, serving as an exact replacement that eliminates the need for aftermarket adapters. The unit features a full-width, one-inch-per-pole design and a standard 10kAIC rating.

Specifications

Key specifications
Brand Federal Pacific
Part Number NA3P15
Series NA
Amperage 15A
Poles 3
Mounting Style Plug-On
Voltage 240VAC
Phase 3
AIC Rating 10kA @ 240VAC
Fit and installation
Frame Type NA
Terminal Type Lugs
For Use With Federal Pacific Stab-Lok Panels
Wire Gauge 14-1/0 AWG
Max Wire 1/0 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Standards CSA C22.2 No. 5
Approval CSA
Temp Rating 40C
Construction Features Stab-Lok System, Common Trip, Full Size (1 inch per pole), Color-Coded Handle

Product FAQs

6 answers
What panels are compatible with the NA3P15 circuit breaker?

The NA3P15 is designed exclusively for use in 3-phase Federal Pacific Stab-Lok electrical panels and load centers. It features a plug-on connection specific to the Stab-Lok busbar design.

Can I use the NA3P15 in a single-phase residential panel?

No. The NA3P15 is a 3-pole breaker intended for 3-phase electrical systems, which are typically found in commercial or industrial settings. Standard residential Stab-Lok panels are single-phase and cannot accommodate a 3-pole breaker.

How much panel space does the NA3P15 require?

The NA3P15 is a standard-width breaker. It requires three full 1-inch spaces, totaling 3 inches of space on the panel busbar.

Does the NA3P15 require a bolt-on connection?

No. The NA3P15 utilizes a plug-on connection. If your Federal Pacific panel requires a bolt-on connection, you will need the NB series equivalent instead.

Are there modern alternatives to the Federal Pacific NA3P15?

Yes. Because original Federal Pacific Electric breakers are obsolete, Connecticut Electric manufactures new, ETL-listed aftermarket replacement breakers under the UBI brand that are designed to fit legacy Stab-Lok panels.

Are there safety concerns with legacy Federal Pacific Stab-Lok breakers?

Yes. Original FPE Stab-Lok panels and breakers have a documented history of failing to trip during overcurrent or short-circuit conditions. Many industry professionals and inspectors recommend replacing the entire panel when possible rather than installing replacement breakers.

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Reviews

4.9
Rated 4.9 out of 5 stars
Based on 28 reviews
Rating
Ratings
28 reviews
  • JM
    Jimmy M.
    Verified Buyer
    Reviewing
    Federal Pacific NA230 - 30A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/8/26
    NA230-30

    Breaker arrived well packaged and sealed. Installed easily and working great for the customer.

  • JE
    James E.
    Verified Buyer
    Reviewing
    Federal Pacific NA250 - 50A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/23/26
    Satisfactory

    Fast shipping and exactly as expected

  • ED
    Erik D.
    Verified Buyer
    Reviewing
    Federal Pacific NA250 - 50A 2 Pole Miniature Circuit Breaker
    I do not recommend this product
    Rated 1 out of 5 stars
    7/21/26
    Result of FP

    Breakers were wrong size and could not be useful....lost monies.

  • JL
    Jeff L.
    Verified Buyer
    Reviewing
    Federal Pacific NA20 - 20A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    6/22/26
    Hard to find breaker

    Fit perfectly. Great service

  • PP
    Paul P. J.
    Verified Buyer
    Reviewing
    Federal Pacific NA20 - 20A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    12/27/25
    perfect ...

    all is great in the universe the FP 20A Breaker worked perfect.