Zinsco QFP2150T Molded Case Circuit Breaker
- 150A
- 2 Pole
- Plug-On
Quantity
Zinsco QFP2150T - 150A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered to restore aging systems, the Zinsco QFP2150T serves as a 150A main breaker. It features a thermal-magnetic trip mechanism for reliable overcurrent protection. This two-pole plug-on breaker mounts into legacy Zinsco load centers without adapters. It provides an exact fit for older panels and is replaced by the UBITBFP1502 for modern upgrades. Rated 10kAIC at 120/240VAC, the unit includes offset top feed lugs to accommodate existing wire bending space.Specifications
| Brand | Zinsco |
|---|---|
| Part Number | QFP2150T-R |
| Series | QFP |
| Amperage | 150A |
| 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 |
| Wire Gauge | 1 AWG - 300 kcmil |
| Max Wire | 300 kcmil |
| Min Wire | 1 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Accessories | Load Side Lugs Included |
|---|---|
| Standards | UL 489 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Main Breaker, Offset Lugs |
Product FAQs
5 answersWhat panels accept the Zinsco QFP2150T main breaker?
The QFP2150T is designed exclusively for use as a main breaker in legacy Zinsco, Sylvania, and Challenger load centers that require QFP series plug-on breakers.
How is the QFP2150T installed in the load center?
It uses a plug-in connection that mounts directly onto the panel bus bars. The breaker features offset, or staggered, top-feed lugs to accommodate the limited wire bending space found in older Zinsco enclosures.
What are the alternate catalog numbers for the QFP2150T?
This breaker is frequently cross-referenced under catalog numbers QFP150-2, QFP2150, and QFP24-150. It was manufactured under the Zinsco, Sylvania, and Challenger brand names.
Is there a modern aftermarket replacement for the QFP2150T?
Yes, the Connecticut Electric UBITBFP1502 is a modern, safety-tested replacement designed to fit the same Zinsco panels as the original QFP2150T.
Are there safety issues associated with original Zinsco breakers?
Yes. Legacy Zinsco panels and breakers have a documented history of failing to trip during overcurrent events and experiencing bus bar arcing. Many modern insurance policies require complete replacement of Zinsco load centers due to these fire risks.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 3 reviews.
- KYKathleen Y.Verified BuyerReviewingMilbank UQFP-100 2 Pole Circuit BreakerI recommend this productRated 5 out of 5 stars1/1/26Milbank 100 2 Pole Circuit Breaker
Product arrived on time, well packaged and exactly what we needed.
Jake was extremely helpful and courteous. You don’t find that too often these days. Will spread the word and recommend your company to all that require your service.
Thank you and Happy New Year
Sincerely,
K. Young
- QAquinlan a.Verified BuyerReviewingZinsco QFP2200T - 200A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/26/25Great communication and customer service
Ordered QFP2200T breaker and paid to ship overnight. Reached out to company when breaker did not arrive on time. Although I did not get the breaker when expected, they did communicate the situation, refunded my shipping and expedited the breaker to me once it was ready for shipping. They handled the situation in the best possible way given the circumstances.
Would buy from them again.
-Quinlan (Q-Extra Electrical Services)
- ARAized R.ReviewingZinsco QFP2200T - 200A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/7/21Excellent service!
I needed an obsolete part. They had it and sent it. Turned out it was the wrong part. Their customer service made up for it. They sent the correct part overnight and also sent a free ups label to return the wrong part. Great service! Highly recommend. And the refurbished part looked like it was in great shape.