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Federal Pacific NC020 Miniature Circuit Breaker

  • 20A
  • 1 Pole
  • Plug-On
Federal Pacific NC020
Miniature Circuit Breaker
Brand Federal Pacific
SKU NC020
Select Item Condition
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  • 20A
  • 1 Pole
  • Plug-On

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Federal Pacific NC020 1 Pole Circuit Breaker

Federal Pacific NC020 - 20A 1 Pole Miniature Circuit Breaker

Re-Certified

$14.98 In Stock

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Description

Maintaining legacy power distribution panels is straightforward with this 20-amp Stab-Lok compatible breaker. Engineered specifically for Federal Pacific enclosures, the single-pole unit slides into place without requiring aftermarket modifications. It serves as an effective cross-reference for the UBIF020N, offering dependable 10kA interrupting capacity at 120VAC. The integrated SWD rating makes it suitable for everyday residential switching applications.

Specifications

Key specifications
Brand Federal Pacific
Series NC
Amperage 20A
Poles 1
Mounting Style Plug-On
Voltage 120VAC
Phase 1
AIC Rating 10kA @ 120VAC
Fit and installation
Frame Type NC
Terminal Type Lugs
For Use With Federal Pacific Stab-Lok Load Centers
Wire Gauge 14-6 AWG (Cu/Al)
Max Wire 6 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
Available Options Handle Tie, Padlock Attachment
Standards CSA C22.2 No. 5, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features Stab-Lok Design, Thin / Wafer Style (1/2 inch per pole), Color Coded Handle

Product FAQs

8 answers
What panels are compatible with the Federal Pacific NC020 breaker?

The NC020 is designed exclusively for legacy Federal Pacific Stab-Lok load centers. It uses the proprietary Stab-Lok plug-in connection and cannot be installed in modern panelboards from manufacturers like Square D, Eaton, or Siemens.

Is the NC020 a thick or thin Stab-Lok breaker?

The NC020 is a thin, half-size Stab-Lok breaker that measures 1/2-inch wide per pole. It is designed to save gutter space in compatible panels, distinguishing it from the thick 1-inch wide NA series breakers.

Can I use an NA-series breaker to replace an NC020?

It depends on the specific buss bar plate in your Stab-Lok panel. Panels with an E-shaped buss bar cutout can often accept either the thick 1-inch NA or thin 1/2-inch NC breakers. Check your panel layout and bussing configuration before substituting.

What is the current aftermarket replacement for the Federal Pacific NC020?

The Connecticut Electric UBIF020N is a newly manufactured, ETL-listed direct replacement for the 20A 1-pole Federal Pacific NC020. It meets modern testing standards for use in legacy Stab-Lok panels.

What does the LI trip function mean on the NC020?

The LI designation indicates Thermal Magnetic protection with Long-Time (L) and Instantaneous (I) trip functions. The long-time function protects against sustained overloads, while the instantaneous function quickly breaks the circuit during severe short circuits.

Is the 10kAIC interrupting rating sufficient for my panel?

A 10kAIC rating was standard for older residential Stab-Lok panels. However, before installing the NC020, an electrician must verify that the available fault current at your specific panel does not exceed 10,000 amps to ensure safe operation during a short circuit.

Should I replace my entire Federal Pacific panel instead of buying replacement breakers?

Federal Pacific Stab-Lok panels are considered obsolete and have documented safety concerns regarding older breakers failing to trip under load. While replacing a faulty NC020 with a tested replacement restores a single circuit, many licensed electricians recommend a complete panel upgrade for long-term safety and modern electrical code compliance.

Are Federal Pioneer breakers interchangeable with Federal Pacific NC020 breakers?

Federal Pioneer is the Canadian equivalent of Federal Pacific Electric. Federal Pioneer Stab-Lok breakers use the same design and physically fit into FPE Stab-Lok load centers, but local electrical codes and UL or CSA listing requirements dictate whether they can be legally substituted in US installations.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 6 reviews
Total 5 star reviews: 6 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
6 reviews
  • DB
    donnie b.
    Verified Buyer
    Reviewing
    Federal Pacific NC015 - 15A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/27/26
    breaker

    Had a warranty issue and account manager was AWESOME / Keizer Davids

  • JN
    Joe N.
    Verified Buyer
    Reviewing
    Federal Pacific NC020 - 20A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/12/25
    Purchased four circuit breakers

    Was happy with all the service would’ve wished the person would inform me if I would’ve spent $15 more I could’ve got free shipping. That way I could’ve ordered another 20 amp circuit breaker. And got it for free.

  • PM
    Patrick M.
    Flag of United States
    Reviewing
    Federal Pacific NC015 - 15A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    5/31/23
    great selection and free delivery!!!

    great selection and free delivery!!!

  • MP
    Mark P.
    Flag of United States
    Reviewing
    Federal Pacific NC015 - 15A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/27/23
    Quick

    Provided quick turnaround 👍. Resolved my parents issue 👍

  • TT
    Tammy T.
    Flag of United States
    Reviewing
    Federal Pacific NC0240 - 40A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/4/22
    Federal Pacific breakers

    I wasn't sure about ordering my particular breakers online because they don't make replica replacements but found the warranty outstanding. The follow-up call as a new customer and the speed with which my order was processed and completed was superior. The price was 1/3 what the ONE local supplier charged.