Connecticut Electric UBIZ240 Miniature Circuit Breaker
- 40A
- 2 Pole
- Plug-On
Connecticut Electric
UBIZ240
Miniature Circuit Breaker
Brand
Connecticut Electric
SKU
UBIZ240
Quantity
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Connecticut Electric UBIZ240 - 40A 2 Pole Miniature Circuit Breaker
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Description
Delivering 40 amps of thermal-magnetic protection, the Connecticut Electric UBIZ240 is a two-pole miniature circuit breaker for 120/240V residential systems. It is engineered to handle demanding loads while maintaining strict safety standards. As an exact replacement for legacy Zinsco QC40 breakers, this plug-on unit fits seamlessly into Zinsco Type QC load centers. The 1-1/2-inch thick series design occupies two 3/4-inch spaces. This breaker is both HACR and SWD rated for versatile use.Specifications
| Brand | Connecticut Electric |
|---|---|
| Series | UBIZ Thick |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Zinsco Load Centers (Type QC) |
| Wire Gauge | 14-6 AWG |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | UL 489 |
|---|---|
| Approval | ETL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
4 answersWhat electrical panels are compatible with the UBIZ240 circuit breaker?
This breaker is designed specifically for use in legacy Zinsco load centers that accept Type QC circuit breakers.
Which original Zinsco circuit breaker does this model replace?
The Connecticut Electric UBIZ240 is a direct aftermarket replacement for the obsolete Zinsco QC40 40-amp, 2-pole circuit breaker.
How much panel space does the UBIZ240 require for installation?
As part of the UBIZ Thick Series, this 2-pole breaker requires two 3/4-inch spaces, taking up a total of 1.5 inches of width on the panel busbar.
Is this replacement breaker safety certified for use in older Zinsco panels?
Yes, the UBIZ240 is ETL listed to UL Standard 489 for molded case circuit breakers, ensuring it meets safety and compliance standards for US and Canadian installations.
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