Zinsco UBIZ0250 Miniature Circuit Breaker
- 50A
- 2 Pole
- Plug-On
Zinsco
UBIZ0250
Miniature Circuit Breaker
Brand
Zinsco
SKU
UBIZ0250
Quantity
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Zinsco UBIZ0250 - 50A 2 Pole Miniature Circuit Breaker
New
Quantity
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Description
Serving as an exact cross-reference for the discontinued RC38-50, this 50A component restores functionality to aging residential electrical systems. The thin-series profile ensures proper alignment and connection within legacy Zinsco load centers. Featuring standard 10kAIC interrupting capacity and HACR rating, it handles demanding loads like HVAC equipment while maintaining compliance with original panel specifications and safety standards.Specifications
| Brand | Zinsco |
|---|---|
| Series | UBIZ |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Zinsco Load Centers |
| 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 |
| Standards | HACR, UL 489 |
|---|---|
| Approval | ETL |
| Temp Rating | 40C |
| Construction Features | Common Trip, HACR Rated |
Product FAQs
6 answersWhat panels are compatible with the UBIZ0250 circuit breaker?
This breaker is designed for use in legacy Zinsco and Sylvania load centers that accept Type RC circuit breakers. It is manufactured by Connecticut Electric as a direct aftermarket replacement for these older panels.
How much panel space does the UBIZ0250 require for installation?
As a Thin Series 2-pole breaker, it requires a single 3/4-inch space in your load center, unlike standard thick breakers that require two spaces.
Which original Zinsco part numbers does the UBIZ0250 replace?
This breaker serves as a direct replacement for the original Zinsco or Sylvania RC3850 50-amp, 2-pole circuit breakers.
What wire sizes are accepted by the terminals on this breaker?
The box lugs are designed to accept wire gauges ranging from 14 AWG to 8 AWG. Always verify proper torque specifications during installation to ensure a secure connection.
Is the UBIZ0250 safety certified for use in Zinsco panels?
Yes, this Connecticut Electric replacement breaker is ETL listed, ensuring it meets recognized safety standards for use in legacy Zinsco load centers.
What type of trip mechanism does the UBIZ0250 utilize?
It features a fixed thermal-magnetic trip mechanism, providing both long-time overload protection and instantaneous short-circuit protection.
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