Connecticut Electric UBIZ1520 15/20A Tandem Miniature Circuit Breaker
- 15/20A
- 1 Pole
- Plug-On
Connecticut Electric
UBIZ1520
15/20A Tandem Miniature Circuit Breaker
Brand
Connecticut Electric
SKU
UBIZ1520
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Connecticut Electric UBIZ1520 - 15/20A Tandem Miniature Circuit Breaker
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Description
Manufactured to restore older residential panels, the Connecticut Electric UBIZ1520 is a 1-pole tandem circuit breaker. It delivers independent 15A and 20A circuits from a single space, making it an ideal solution for expanding capacity in crowded enclosures. This plug-on breaker installs into Zinsco Type R load centers. It serves as an exact cross-reference for the obsolete Zinsco R381520, ensuring a precise fit. The unit features a 10 kAIC rating at 120VAC and carries an SWD rating.Specifications
| Brand | Connecticut Electric |
|---|---|
| Series | Thin |
| Amperage | 15/20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Zinsco Load Centers (Type R) |
| Wire Gauge | 14-8 AWG |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | Tandem |
|---|---|
| Standards | UL 489 |
| Approval | ETL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated, Tandem |
Product FAQs
7 answersWhat load centers are compatible with the UBIZ1520 circuit breaker?
This breaker is designed for use in legacy Zinsco load centers that accept Type R circuit breakers. It is specifically engineered to fit the original bus bar design of these older panels.
Which older Zinsco part numbers does the UBIZ1520 replace?
The UBIZ1520 serves as a direct replacement for original Zinsco part numbers R381520 and RC38-1520.
How much panel space does the UBIZ1520 require?
As a twin or tandem breaker, it provides two independent circuits while only occupying a single 3/4-inch space in your panel. This maximizes capacity in older electrical systems where panel slots are limited.
Is the Connecticut Electric UBIZ1520 safety certified for residential use?
Yes, it is ETL listed to UL Standard 489 for molded case circuit breakers, ensuring it meets modern safety requirements for use in the US and Canada.
Does this breaker require any special adapters to fit Zinsco panels?
No, it features a direct plug-in connection designed to fit the original Zinsco bus bar without the need for mounting adapters or modification kits.
Are the 15A and 20A circuits on this breaker tied together?
No, this is a tandem breaker with independent trip mechanisms for the 15-amp and 20-amp circuits. They operate as two separate single-pole circuits within the same housing.
Is the UBIZ1520 rated for switching duty?
Yes, this breaker is SWD (Switching Duty) rated, meaning it is approved for switching 120V fluorescent lighting loads on and off on a regular basis.
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