Connecticut Electric UBIZ0220 New Zinsco RC3820 2-Pole 20 Amp Breaker

In this review of the Connecticut Electric UBIZ0220-New Zinsco RC3820 replacement breaker, the bottom line is clear: it is a straightforward, safety-listed replacement for Zinsco RC style panels when a 20 amp, 2-pole thin breaker is needed. The reviewer finds it useful for homeowners and contractors replacing Zinsco breakers with a new, molded case unit that carries an Intertek ETL Listing to UL Standard 489 and a 10,000 AIC rating. Buyers should consider it primarily when panel compatibility and safety listing are the priorities.

Key Features

• Replacement for Zinsco panels: Manufactured new to fit Zinsco RC style load centers, providing a direct swap for old or failed breakers.
• Safety agency listing: ETL Listing to UL Standard 489 ensures the breaker meets recognized safety and performance standards for US and Canada.
• Compact 3/4in thin body: The thin series 3/4in body lets installers use limited panel space while providing a double pole 120/240 VAC breaker.
• 10,000 AIC interrupting rating: A 10,000 ampere interrupting capacity gives reasonable short-circuit protection for typical residential circuits.
• Plug-in type: The plug-in configuration allows for a conventional, familiar installation into compatible Zinsco load centers.
• Manufacturer new, not refurbished: Connecticut Electric supplies a new molded case breaker rather than a used or rebuilt unit, supporting long-term safety expectations.

Who It's For

The UBIZ0220 is aimed at homeowners, electricians and maintenance professionals who need a like-for-like replacement in Zinsco load centers that accept RC style breakers. It is especially appropriate when safety listing and a new molded case unit are required rather than a used or refurbished breaker.

Those who should look elsewhere include anyone whose panel is not compatible with Zinsco RC style plug-in breakers, or customers who need higher interrupting capacity or a different amp rating. Also consider alternatives if long-term durability history is a primary concern, as some customers report mixed longevity feedback.

Pros & Cons

Pros

• Safety listed to ETL/UL standards, offering confidence in compliance for replacement work.
• Designed to fit Zinsco RC style panels and installs as a plug-in thin series breaker for tight panel spaces.
• Good value and accurate fit according to several buyers who replaced worn Zinsco breakers.

Cons

• Some customers report mixed functionality and limited breaker life after events like blackouts, so long-term reliability may vary.
• Reports of riveted switch construction and occasional installation difficulty indicate it may not feel as refined as some legacy originals.

Specifications

Brand	Connecticut Electric
Model	UBIZ0220-New Zinsco RC3820
Type	2 Pole, Thin Series Plug-in
Amperage	20 Amp
Voltage	120/240 VAC
Interrupting Rating	10,000 AIC
Body Width	3/4 in

Our Verdict

The Connecticut Electric UBIZ0220 is a practical, safety-listed replacement for Zinsco RC style panels, offering a compact 2-pole 20 amp option at a reasonable price. It is a good choice when panel compatibility and an ETL/UL listed new breaker matter, though buyers should be mindful of mixed user reports on long-term durability.

Frequently Asked Questions

Will this fit my Zinsco panel?
Yes, it is built as a replacement for Zinsco RC style load centers that accept RC3820 style plug-in breakers.

Is this a new breaker or refurbished?
This is a newly manufactured molded case replacement breaker, not used or rebuilt.

What applications is this appropriate for?
Typical suggested uses include 240 volt appliances such as baseboard heat, fan forced heaters and air conditioners within the breaker and circuit capacity limits.