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Connecticut Electric UBIZ230 Zinsco Circuit Breaker, 2-Pole 30-Amp Thick Series

4.2 out of 5 stars 14 customer reviews

Was: $53.11
Price: $49.55 & FREE Shipping. Details
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  • 10,000 AIC 2-pole 30A
  • Zinsco circuit breaker by Connecticut Electric Type UBIZ.
  • For use in Zinsco load centers that accept type RC circuit breakers.
  • UL Listed & Certified
  • 2 Pole, 30 Amp
  • Type UBIZ for use in Zinsco load centers
  • Thick series, requires two 3/4-inch spaces
  • Former QC series, directly replaces QC30
14 new from $49.55 4 used from $42.12

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$49.55 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

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Product Description

Product Description

Zinsco circuit breaker by Connecticut Electric Type UBIZ. For use in Zinsco load centers that accept type QC circuit breakers. ETL Listed. 10,000 AIC 2-pole 30A

From the Manufacturer

This 120/240 volt Zinsco 30 amp, double pole, thick series replacement circuit breaker is used in a Zinsco load center. Typical applications, up to 13,200 watts, include hot water heaters, clothes dryers, air conditioners (240 Volt, up to 36,000 BTU) and electric motors (240 Volt, 1-1/2 hp to 3 hp). These are only suggested applications and cannot assure compliance with all local codes. Please check local electrical codes before starting any electrical project.

Product Information

Technical Details

Part Number UBIZ230-B
Item Weight 7.2 ounces
Product Dimensions 5 x 1.5 x 3 inches
Item model number UBIZ230 (QC30)
Size 30 amp
Item Package Quantity 1
Batteries Included? No
Batteries Required? No
Warranty Description 2 year

Additional Information

ASIN B000BQRE0M
Customer Reviews
4.2 out of 5 stars 14 customer reviews

4.2 out of 5 stars
Best Sellers Rank #165,894 in Home Improvements (See top 100)
#40 in Home Improvement > Electrical > Breakers, Load Centers & Fuses > Circuit Breakers > Thermal Circuit Breakers
Shipping Weight 7.2 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available August 17, 2005

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Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
Zinsco is out of business, but was a major supplier of circuit breakers and breaker boxes. My whole neighborhood was built using them back in the 1950's. New old-stock breakers can still be found, but they are expensive, and frankly are the same breakers with the same quality and shortcomings. I bought the Connecticut breakers (30 amp 2-pole & 40 amp 2-pole, both for 240v) to replace two tired, worn-out Zinsco breakers that were not carrying the loads well anymore. The new breakers arrived very quickly, and although they looked quite different on the exterior from the originals, they fit perfectly and look to be better made. For example, the Zinscos used a mild steel strap wrapped around the switch handles to make both circuits open if just one side tripped. What this allowed in my case was just one breaker side was tripping, but the steel strap did not pull the other side open, leaving one side of the 240v circuit live. In my case that left an electric motor trying to start, but couldn't. This almost burnt the motor out. The new breakers use a metal pin through both switch handles; if one goes they both do. Simple change, big improvement in safety. Now, will the new breakers hold up? We'll see.

It now has been months since I replaced our bad Zinsco breakers with the new ones by Connecticut Electric, and the verdict is in: Flawless fit and performance. Not one problem or safety concern. The problems we had with the circuits opening and shutting off our appliances has been cured. These are high quality replacement breakers for the old Zinsco boxes, and even the price was very good. I recommend these circuit breakers.
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Verified Purchase
These are hard to get since they have not been manufactured by Zinscofor years. I had a breaker fail and an electrician friend recommended salvage yards. He knew of a couple sources that would sell a used breaker for more than I paid for this new one.

Fit was fine. I did have to replace a single wide with a double wide, but I had plenty of room in the breaker panel
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Verified Purchase
I dont get the negative reviews this breaker came brand new condition and works perfectly thanks!!
I wonder sometimes if the people giving 1 star know what their doing with the product they buy ;)
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Verified Purchase
What can I say? It works great and allowed me to keep my old panel, but still upgrade the electrical. This is only docked one star because one of the 2-pole breakers on the circuit breaker wouldn't reset when it first arrived, so I ended up doing some resistance testing and found that one side wasn't reset properly. Once I knew that, I then I worked it back and forth pretty hard to finally get it to grip the breaker and trip the one side that wasn't resetting. Since then, no problems - resets fine, went into the panel fine as well.
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Verified Purchase
Needed this ASAP,Had a customer that went from a gas to electric dryer, it didn't work. A previous contractor took out the breaker and wiring leaving a useless outlet. Was a great price in comparison to other options. With Prime next day shipping was able to get it quickly.
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Verified Purchase
Product is mostly okay. It was shipped badly, just in an envelope. Pieces (plastic) of the breaker had broken off, and came out of the envelope upon opening. Fortunately, the breaker seems functional, and since I don't want to wait forever again, I will not be returning it. Shipping always seems to be an issue with Amazon.
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By PW on January 1, 2013
Verified Purchase
Hard to find breaker for an obsolete panel and saved my customer the cost of a service upgrade. When the panel is in otherwise good condition, replacing the breaker is fine.
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