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Free Economy Shipping Available! | Refer to FAQ For Additional Information | websales@breakerhunters.com | 877-963-4543
Free Economy Shipping Available! | Refer to FAQ For Additional Information | websales@breakerhunters.com | 877-963-4543

Westinghouse: NB Frame Circuit Breakers

Westinghouse NB-Frame Circuit Breakers

  • HNB31000 HNB Frame Style, Molded Case Circuit Breaker, Mark 75, Thermal Magnetic Interchangeable Trip Unit, 1000 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, High Interrupting Style, Without Terminals. New Surplus and Certified Reconditioned with 1 Year Warranty.

    HNB31200F w/1000A Trip Unit

    Westinghouse

    Product Description HNB Frame Style, Molded Case Circuit Breaker, Mark 75, Thermal Magnetic Interchangeable Trip Unit, 1000 Ampere at 40 Degree Cel...

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    Delivery
    Free with $500 Order
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    Delivery
    Free with $500 Order
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  • HNB31200 HNB Frame Style, Molded Case Circuit Breaker, Mark 75, Thermal Magnetic Interchangeable Trip Unit, 1200 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, High Interrupting Style, Without Terminals. New Surplus and Certified Reconditioned with 1 Year Warranty.

    HNB31200F w/1200A Trip Unit

    Westinghouse

    Product Description HNB Frame Style, Molded Case Circuit Breaker, Mark 75, Thermal Magnetic Interchangeable Trip Unit, 1200 Ampere at 40 Degree Ce...

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    Delivery
    Free with $500 Order
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    Delivery
    Free with $500 Order
    Get it by
  • HNB3700 HNB Frame Style, Molded Case Circuit Breaker, Mark 75, Thermal Magnetic Interchangeable Trip Unit, 700 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, High Interrupting Style, Without Terminals. New Surplus and Certified Reconditioned with 1 Year Warranty.

    HNB31200F w/700A Trip Unit

    Westinghouse

    Product Description HNB Frame Style, Molded Case Circuit Breaker, Mark 75, Thermal Magnetic Interchangeable Trip Unit, 700 Ampere at 40 Degree Cels...

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    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by
  • HNB3800 HNB Frame Style, Molded Case Circuit Breaker, Mark 75, Thermal Magnetic Interchangeable Trip Unit, 800 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, High Interrupting Style, Without Terminals. New Surplus and Certified Reconditioned with 1 Year Warranty.

    HNB31200F w/800A Trip Unit

    Westinghouse

    Product Description HNB Frame Style, Molded Case Circuit Breaker, Mark 75, Thermal Magnetic Interchangeable Trip Unit, 800 Ampere at 40 Degree Cels...

    View full details
    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by
  • HNB3900 HNB Frame Style, Molded Case Circuit Breaker, Mark 75, Thermal Magnetic Interchangeable Trip Unit, 900 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, High Interrupting Style, Without Terminals. New Surplus and Certified Reconditioned with 1 Year Warranty.

    HNB31200F w/900A Trip Unit

    Westinghouse

    Product Description HNB Frame Style, Molded Case Circuit Breaker, Mark 75, Thermal Magnetic Interchangeable Trip Unit, 900 Ampere at 40 Degree Cel...

    View full details
    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by
  • NB31000 NB Frame Style, Molded Case Circuit Breaker, Thermal Magnetic Interchangeable Trip Unit, 1000 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, Interrupting Ratings: 50 Kiloampere @ 240VAC, 35 Kiloampere @ 480VAC, 25 Kiloampere @ 600VAC, Without Terminals. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB31200F w/1000A Trip Unit

    Westinghouse

    Product Description NB Frame Style, Molded Case Circuit Breaker, Thermal Magnetic Interchangeable Trip Unit, 1000 Ampere at 40 Degree Celsius, 3 Po...

    View full details
    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by
  • NB31200 NB Frame Style, Molded Case Circuit Breaker, Thermal Magnetic Interchangeable Trip Unit, 1200 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, Interrupting Ratings: 50 Kiloampere @ 240VAC, 35 Kiloampere @ 480VAC, 25 Kiloampere @ 600VAC, Without Terminals. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB31200F w/1200A Trip Unit

    Westinghouse

    Product Description NB Frame Style, Molded Case Circuit Breaker, Thermal Magnetic Interchangeable Trip Unit, 1200 Ampere at 40 Degree Celsius, 3 P...

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    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by
  • NB3700 NB Frame Style, Molded Case Circuit Breaker, Thermal Magnetic Interchangeable Trip Unit, 700 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, Interrupting Ratings: 50 Kiloampere @ 240VAC, 35 Kiloampere @ 480VAC, 25 Kiloampere @ 600VAC, Without Terminals. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB31200F w/700A Trip Unit

    Westinghouse

    Product Description NB Frame Style, Molded Case Circuit Breaker, Thermal Magnetic Interchangeable Trip Unit, 700 Ampere at 40 Degree Celsius, 3 Pol...

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    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by
  • NB3800 NB Frame Style, Molded Case Circuit Breaker, Thermal Magnetic Interchangeable Trip Unit, 800 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, Interrupting Ratings: 50 Kiloampere @ 240VAC, 35 Kiloampere @ 480VAC, 25 Kiloampere @ 600VAC, Without Terminals. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB31200F w/800A Trip Unit

    Westinghouse

    Product Description NB Frame Style, Molded Case Circuit Breaker, Thermal Magnetic Interchangeable Trip Unit, 800 Ampere at 40 Degree Celsius, 3 Pol...

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    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by
  • NB3900 NB Frame Style, Molded Case Circuit Breaker, Thermal Magnetic Interchangeable Trip Unit, 900 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, Interrupting Ratings: 50 Kiloampere @ 240VAC, 35 Kiloampere @ 480VAC, 25 Kiloampere @ 600VAC, Without Terminals. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB31200F w/900A Trip Unit

    Westinghouse

    Product Description NB Frame Style, Molded Case Circuit Breaker, Thermal Magnetic Interchangeable Trip Unit, 900 Ampere at 40 Degree Celsius, 3 Pol...

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    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by
  • NB3300P NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 300 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, 1500-3000 Trip Range, Without Terminals, With Current Limiters 500NBP12 Installed Standard. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB3300P

    Westinghouse

    Product Description NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 300 Ampere at 40 D...

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    Delivery
    Free with $500 Order
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    Delivery
    Free with $500 Order
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  • NB3350P NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 350 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, 1750-3500 Trip Range, Without Terminals, With Current Limiters 500NBP12 Installed Standard. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB3350P

    Westinghouse

    Product Description NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 350 Ampere at 40 D...

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    Delivery
    Free with $500 Order
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    Delivery
    Free with $500 Order
    Get it by
  • NB3400P NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 400 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, 2000-4000 Trip Range, Without Terminals, With Current Limiters 500NBP12 Installed Standard. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB3400P

    Westinghouse

    Product Description NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 400 Ampere at 40 D...

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    Delivery
    Free with $500 Order
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    Delivery
    Free with $500 Order
    Get it by
  • NB3500P NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 500 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, 2500-5000 Trip Range, Without Terminals, With Current Limiters 500NBP12 Installed Standard. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB3500P

    Westinghouse

    Product Description NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 500 Ampere at 40 D...

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    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by
  • NB3600P NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 600 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, 3000-6000 Trip Range, Without Terminals, With Current Limiters 800NBP20 Installed Standard. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB3600P

    Westinghouse

    Product Description NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 600 Ampere at 40 D...

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    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by
  • NB3700P NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 700 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, 3000-6000 Trip Range, Without Terminals, With Current Limiters 800NBP20 Installed Standard. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB3700P

    Westinghouse

    Product Description NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 700 Ampere at 40 D...

    View full details
    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by
  • NB3800P NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 800 Ampere at 40 Degree Celsius, 3 Pole, 600VAC @ 50/60HZ, 3000-6000 Trip Range, Without Terminals, With Current Limiters 800NBP20 Installed Standard. New Surplus and Certified Reconditioned with 1 Year Warranty.

    NB3800P

    Westinghouse

    Product Description NB Frame Style, Tri-Pac, Molded-Case Circuit Breaker, Long Delay and Magnetic Non-Interchangeable Trip Unit, 800 Ampere at 40 D...

    View full details
    Delivery
    Free with $500 Order
    Get it by
    Delivery
    Free with $500 Order
    Get it by

Let customers speak for us

from 175 reviews

Always a pleasure buying from Breaker Hunters

Jeffrey Seeley
MXD63B800
Great Store

Took them awhile to find an OLD breaker for me but they did come up what I needed. Great service. Highly recommend.

Wayne Nelsen
Q20
Great!!!

My salesperson was very helpful and worked with me nicely to get the Breaker I need and out to me in a really quick fashion. Thanks again!!

John Thyen
NCG31200F w/1000A Rating Plug
Great service

The service was excellent and very fast delivery, highly recommend.

Tim McGregor
W200M2CFC
Excelente Servicio

Muy cumplidores en sus despachos, los productos impecables Muchas Gracias

EximtecSpA att Marie Mayo
V201K5CJZ1

B10.2

Tom Vanderburg
B10.2
Fast and efficient

very fast and efficient

Tim McGregor
NDA Shipping
Great job

I ordered 9 starter switches and they were next day delivery. Installed and worked great. I am in the process of ordering spare ones now. Definitely recommend

Tim McGregor
W200M1CFC
STARTER REPLACEMENT

Had to replace an older starter. Communication with the company was easy and accurate. Customer service worked with me to ensure the order was correct and shipped on time. Highly recommend reaching out with any questions, great company.

ADAM JEFFREY
509-FOD

CHND312T33W

Jonathan Ragland
CHND312T33W

Great service, exactly what I ordered, thanks

Frank Roush
SEDA36AT0060 w/SRPE60A40

QUICK SERVICE, EXCELLENT PRODUCT. CUSTOMER IS VERY HAPPY !

Susan Sandridge
RD316T33WS21

Excellent service very happy with the product

Brent Hickman
LG3450S03

PAF361000

Cindy Miller
PAF361000

QUICK. SMOOTH. AND EASY. THANK YOU

Nationwide Electric Supply Co., Inc.
CHND312T33W