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Eaton / Westinghouse NB3800 - 800A 3 Pole Molded Case Circuit Breaker

Brand Eaton / Westinghouse
SKU NB3800
5.0
Rated 5.0 out of 5 stars
15 Reviews
Westinghouse NB3800 3 Pole Circuit Breaker
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Eaton / Westinghouse NB3800 - 800A 3 Pole Molded Case Circuit Breaker

Brand Eaton / Westinghouse
SKU NB3800
5.0
Rated 5.0 out of 5 stars
15 Reviews
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Westinghouse NB3800 3 Pole Circuit Breaker

Eaton / Westinghouse NB3800 - 800A 3 Pole Molded Case Circuit Breaker

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$2918.87 In stock

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DescriptionSpecificationsSuperClubWarranties
Description
Restoring older industrial infrastructure requires exact-fit components like the Eaton NB3800. This 800-amp, three-pole molded case circuit breaker delivers reliable long-time and instantaneous protection for commercial applications. It mounts into legacy Westinghouse PRL4 panelboards and switchboards without requiring retrofit kits. Facility managers can use this unit to replace aging NB3800 or HNB3800 models while maintaining original equipment specifications.

Specifications

Brand Eaton / Westinghouse
Series NB
Part Number NB3800-R
Amperage 800A
Voltage 600VAC, 250VDC
Poles 3
Phase 3
AIC Rating 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 20kA @ 250VDC
Mounting Style Bolt-On
Terminal Type Lugs
For Use With Westinghouse PRL4 Panelboards, Switchboards
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Lugs Not Included
Standards NEMA AB-1, UL 489
Approval UL
Temp Rating 40C
Construction Features Interchangeable Trip Unit

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Warranties

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5.0
Rated 5.0 out of 5 stars
Based on 15 reviews
Total 5 star reviews: 15 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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15 reviews
  • 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!!)

    Was this helpful?
  • 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.

    Was this helpful?
  • JI
    Jeffrey I.
    Verified Buyer
    Reviewing
    Federal Pacific NB232050 - 50A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/21/25
    FPE

    Great supplier for hard to find breakers

    Was this helpful?
  • VA
    Virginia a.
    Verified Buyer
    Reviewing
    Federal Pacific NB100 - 100A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/3/25
    Breaker

    Had the part I needed that I could not find anywhere else. Arrived on time and was as described

    Was this helpful?
  • JM
    Jonathon M.
    Flag of United States
    Reviewing
    Federal Pacific NB100 - 100A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/26/23
    Works great, thanks

    Works great, thanks

    Was this helpful?

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