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Connecticut Electric

UBIZ0240-New Zinsco RC3840 Replacement. Two Pole 40 Amp Thin Series Manufactured By Connecticut Electric.

    • Based on 310 reviews
Condition: New
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$60.01 Why this price?
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Nov 27
Order within 20 hours and 15 minutes
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Features

  • Replacement Zinsco circuit breaker manufactured new by Connecticut Electric
  • For use in Zinsco circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 40 Amp
  • 120/240 VAC 2 Pole breaker in 3/4" body
  • Plug in type
  • May also be branded as Sylvania (ie, Sylvania RC 3840)

Description

Connecticut Electric manufactures new high quality replacement circuit breakers for Zinsco load centers that accept Zinsco RC style circuit breakers. Circuit breakers should only be replaced with new tested and Safety Agency Listed circuit breakers, never used or refurbished ones. From the Manufacturer This 120/240 volt Zinsco 40 amp, double pole, thin series replacement circuit breaker is used in a Zinsco load center. Typical applications, up to 8,800 watts, include electric baseboard heat, fan forced heat and 240 volt air conditioners (up to 23,000 BTU). These are only suggested applications and cannot assure compliance with all local codes. Please check local electrical codes before starting any electrical project.

Brand: Connecticut Electric


Current Rating: 40 Amps


Voltage: 240 Volts


Product Dimensions: 3.3"D x 0.8"W x 5.3"H


Circuit Breaker Type: Standard


Brand: ‎Connecticut Electric


Current Rating: ‎40 Amps


Voltage: ‎240 Volts


Product Dimensions: ‎3.3"D x 0.8"W x 5.3"H


Circuit Breaker Type: ‎Standard


Mounting Type: ‎Plug-In Mount


Number Of Poles: ‎2


Manufacturer: ‎Connecticut Electric


Part Number: ‎UBIZ0240


Item Weight: ‎6.6 ounces


Country of Origin: ‎USA


Item model number: ‎UBIZ0240 (RC3840)


Is Discontinued By Manufacturer: ‎No


Size: ‎40 Amp


Item Package Quantity: ‎1


Included Components: ‎Circuit Breaker


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎10 Years


Date First Available: September 9, 2006


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Better Than The Original
My old circuit breaker finally went and couldn't be reset anymore. It was the one from my central AC. I thought the AC was going bad because this circuit breaker kept tripping on hot days when the AC is needed the most. Before replacing the AC unit, I wanted to replace the circuit breaker first, get the unit running again temporarily, so that the repair man can determine exactly what needs to be replaced. I found out quickly that this circuit breaker is very hard to find. In doing my research, I came across this circuit breaker, manufactured NEW by Connecticut Electric. It's an improved, safer version of the original and completely up to today's code standards. This circuit breaker fit like a glove and was an exact replacement. To my pleasant surprise, after replacing the circuit breaker, the AC performed like new and the circuit breaker hasn't tripped once in several weeks, and we had a couple of 90+ degree days in a row during that time, which would have tripped the old, breaker. The old breaker was weakened, having tripped several times by our original AC unit and the breaker was never replaced when we purchased our current AC unit. I am very happy to have taken the time to do the research and find this breaker. It saved me thousands of dollars in not having to replace my AC at this time, which is still functioning great. If you're in need of a Zinsco circuit breaker, give Connecticut Electric a try, or any site here on Amazon that carries these breakers. They're better than the originals which haven't been manufactured now for years. ... show more
Reviewed in the United States on June 29, 2022 by Joseph D'Agostino
    • Worked great!!
Great price for item. These are great replacements for ZINSCO breakers..
Reviewed in the United States on December 19, 2022 by Bebe Che
    • A very tight fit, but it works
The breaker for our Central AC kept tripping on hot days in full sunlight. I checked the amp draw from the outside unit; one leg was drawing 18 amps and the other was 21 amps. This circuit is powered by two 40 amp breakers, so the AC was drawing nowhere near enough current to trip the breaker. I bought this replacement CE 40 amp 2 pole slim breaker and it was an incredibly tight fit--i had to gently tap it into place with a rubber mallet but it worked. So far the breaker hasn't tripped and my ancient air conditioner is running fine. Another reviewer mentioned the same issue with his central AC. Zinsco panels are terrible, but $60 to replace a bad breaker is much better than $1850 to have an electrician replace the panel. ... show more
Reviewed in the United States on June 27, 2023 by Bender The Robot
    • It's a very tight fit
Good build and for a after market part, the quality seems to be solid. If the housing in the bottom contact area was slightly chamfered, the installation could be easier. The fit is very tight but necessary I guess. Out of 4 circuit breakers I bought , one fit with elbow grease and the others required a light hit from a rubber mallet to be placed onto the buss. I would buy this again should the older C/B's fail. Price point is excellent. ... show more
Reviewed in the United States on December 2, 2022 by Frank
    • Perfect replacement for Zinsco
I've gotten Connecticut Electric breakers to replace other Zinsco and they all work as expected. No issues with this replacement either.
Reviewed in the United States on November 16, 2022 by silly goose
    • Works great
My local big box stores don't carry these anymore, so I was pleased when I found this on Amazon. It works just as it should. Perfect fit and function.
Reviewed in the United States on June 8, 2021 by 1Bigelkhunter
    • Works well with with my tankless water heater.
Combined effectively with an original Zlnsco breaker since the install required 2 separate double pole breakers.
Reviewed in the United States on June 27, 2022 by couchpotato
    • great exact replacement
easy nstall
Reviewed in the United States on June 15, 2021 by Chuck Regan

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