Skip to main content
Expedited shipping available at checkout

Federal Pacific NB221030 Molded Case Circuit Breaker

  • 30A
  • 2 Pole
  • Bolt-On
Federal Pacific NB221030
Molded Case Circuit Breaker
Brand Federal Pacific
SKU NB221030
Select Item Condition
Earn 95 SuperPoints
  • 30A
  • 2 Pole
  • Bolt-On

Quantity

Bulk Pricing
Send your parts list for a volume quote.
Federal Pacific NB221030 2 Pole Circuit Breaker

Federal Pacific NB221030 - 30A 2 Pole Molded Case Circuit Breaker

Re-Certified

$95.00 In Stock

Quantity

Similar Items

Description

Maintaining legacy electrical distribution networks demands precise hardware compatibility. This 30A, two-pole breaker fastens securely into Federal Pacific NB and NBLP panelboards to restore branch circuit functionality. Rated for 10kAIC at 120/240VAC, the thermal-magnetic design delivers consistent overcurrent response. Facilities can also utilize the UBIF230NB as a modern substitute for this frame.

Specifications

Key specifications
Brand Federal Pacific
Part Number NB221030-R
Series NB
Amperage 30A
Poles 2
Mounting Style Bolt-On
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
Terminal Type Lugs
For Use With Federal Pacific NB Panelboards, NBLP Panelboards
Wire Gauge 14-2 AWG
Max Wire 2 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
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features Common Trip

Product FAQs

7 answers
Which Federal Pacific panelboards will accept this circuit breaker?

The NB221030 is designed specifically for legacy Federal Pacific NB and NBLP series panelboards.

Does this breaker use the Federal Pacific Stab-Lok mounting design?

No. Unlike residential Stab-Lok plug-in breakers, the NB series features a secure bolt-on mounting mechanism designed for commercial distribution panels.

Can the thermal-magnetic trip settings be adjusted on this breaker?

No. The trip unit has fixed long-time and instantaneous protection settings that cannot be modified in the field.

What wire gauge range do the load terminals support?

The factory lug terminals are sized to accept conductors ranging from 14 AWG up to 2 AWG.

Is the NB221030 circuit breaker suitable for DC voltage applications?

This specific molded case circuit breaker is rated strictly for AC systems up to 240V and is not evaluated for direct current applications.

Can this breaker be installed in systems with high fault current availability?

The breaker has a maximum interrupting capacity of 10kA at 120/240VAC. It must not be installed in electrical systems where the available fault current exceeds this rating.

Is this a current production breaker from Federal Pacific?

Federal Pacific no longer manufactures these breakers. The NB221030 is considered a legacy component sourced specifically to support and maintain existing NB and NBLP electrical systems.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

Get a Quote

Don’t see what you’re looking for?

We source obsolete and hard-to-find parts every day.

Shipping

Free Shipping Policy

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.

Read our full shipping policy

Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.

Expedited Shipments

Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.

International Shipping

All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.

Reviews

5.0
Rated 5.0 out of 5 stars
Based on 18 reviews
Rating
Ratings
18 reviews
  • MM
    Mike M.
    Verified Buyer
    Reviewing
    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
    I recommend this product
    Rated 5 out of 5 stars
    3/3/26
    Federal Pacific NB125 2 Pole Circuit Breaker

    Federal Pacific NB125 2 Pole Circuit Breaker

    Great product and excellent price and warranty.