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Federal Pacific NEF431070 Molded Case Circuit Breaker

  • 70A
  • 3 Pole
  • Bolt-On
Federal Pacific NEF431070
Molded Case Circuit Breaker
Brand Federal Pacific
SKU NEF431070
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  • 70A
  • 3 Pole
  • Bolt-On

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Federal Pacific NEF431070 - 70A 3 Pole Molded Case Circuit Breaker

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$307.39 In Stock

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Description

Maintaining obsolete electrical systems requires reliable replacement parts like this 70A molded case circuit breaker. It provides essential long-time and instantaneous trip functions for heavy-duty commercial environments. The N-Frame footprint ensures a proper fit into existing Federal Pacific panelboards without modifications. It acts as a dependable substitute for hard-to-find components, matching the specifications of the UBIF370N cross-reference.

Specifications

Key specifications
Brand Federal Pacific
Part Number NEF431070-R
Series NEF
Amperage 70A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC, 480VAC, 250VDC
Phase 3
AIC Rating 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC
Fit and installation
Terminal Type Lugs
For Use With Federal Pacific Panelboards
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 Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Bell Alarm
Accessories Lugs
Standards CSA C22.2, NEMA AB-1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features Non-Interchangeable Trip, Reverse Feed, Vibration Tested, HACR Rated

Product FAQs

8 answers
What panelboards is the NEF431070 designed to fit?

This N-Frame breaker is designed for legacy Federal Pacific (FPE) commercial distribution panelboards, specifically the CDP and BDP series, that accept bolt-on molded case circuit breakers.

Can I install this breaker in a Federal Pacific Stab-Lok residential panel?

No. The NEF431070 is a commercial N-Frame molded case circuit breaker with a bolt-on connection. It will not fit into Stab-Lok load centers, which require specific plug-on Stab-Lok branch breakers.

What mounting hardware is needed to install this breaker?

Installing this N-Frame breaker into FPE CDP or BDP panelboards requires specific bus connection hardware. Twin mounting kits, such as the BKCDPNEFFPE or BKBDPNEFFPE, are typically used to mount two NE or NEF frame breakers adjacent to each other.

Can the NEF431070 be used in direct current (DC) systems?

Yes. In addition to its standard 240V and 480V alternating current ratings, this breaker is rated for 250VDC applications with a 10kA interrupting capacity.

Are the trip settings on the NEF431070 adjustable?

No. This breaker features a fixed thermal-magnetic trip unit. The long-time (thermal) overload protection and instantaneous (magnetic) short-circuit protection are factory set and cannot be adjusted in the field.

Are there aftermarket cross-references available for the NEF431070?

Yes. Since original Federal Pacific equipment is obsolete, exact-fit aftermarket replacements are available. You can often use the cross-reference catalog number UBIF370N, which matches the physical footprint, bolt-on mounting, and electrical specifications of the original FPE N-Frame.

Will this breaker replace other Federal Pacific N-Frame models?

Yes, the NEF series shares the same physical dimensions and mounting hardware requirements as other legacy FPE N-Frame breakers, including the NE and HEG series. It can serve as a direct replacement provided the amperage, voltage, and interrupting ratings meet your system requirements.

Does this breaker have the same safety issues as Federal Pacific Stab-Lok breakers?

The widely documented safety concerns and failure rates associated with Federal Pacific equipment are specific to their residential Stab-Lok line. The NEF431070 is a commercial-grade molded case circuit breaker and does not share the Stab-Lok design, though all legacy electrical distribution equipment should be routinely inspected and tested.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 6 reviews
Rating
Ratings
6 reviews
  • SC
    Stephen C.
    Verified Buyer
    Reviewing
    Federal Pacific NEF431030 - 30A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/21/26
    Fpe 3 pole 30 amp breaker.

    I ordered the breaker on Thursday and it was at my house for Saturday morning. Breaker is in pristine condition. A real bail out. Thank you.

  • MR
    Michael R.
    Verified Buyer
    Reviewing
    Federal Pacific NEF431040 - 40A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/4/25
    Warehouse Air Compressor

    Worked like a charm.

    Thank you.

  • DP
    Diana P.
    Flag of United States
    Reviewing
    Federal Pacific NEF433020 3 Pole Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/3/21
    Satisfied

    Service was GREAT!!

  • DJ
    David J.
    Flag of United States
    Reviewing
    Federal Pacific / American NEF431100 - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/13/21
    This worked out great.

    This worked out great.

  • MW
    Mark W.
    Flag of United States
    Reviewing
    Federal Pacific NEF421050 - 50A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/17/19
    Great service & pricing

    Superbreakers did a great job for us. We called and asked if the breakers were actually in their possession. Withing 30 minutes they called us back (which is rare these days), and we got our breakers the next morning.