Zinsco QFL2200LL Molded Case Circuit Breaker
- 200A
- 2 Pole
- Unit Mount
Quantity
Zinsco QFL2200LL - 200A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Serving as a dedicated main breaker, the 200A QFL2200LL features a lug-to-lug feed-through design for specific residential and commercial applications. It mounts into vintage Zinsco load centers, restoring power distribution capabilities to aging infrastructure. This unit mount MCCB is a recognized cross-reference for the UBIZ2200 replacement. It delivers reliable thermal-magnetic trip functionality with a 10kAIC rating at 120/240VAC, ensuring standard overcurrent protection for legacy systems.Specifications
| Brand | Zinsco |
|---|---|
| Series | QFL |
| Amperage | 200A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | QFL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Zinsco Load Centers |
| Wire Gauge | 2/0 AWG-300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 2/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Accessories | Line and Load Lugs |
|---|---|
| Standards | UL 489 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Main Breaker, Feed-Through |
Product FAQs
5 answersWhat panels are compatible with the Zinsco QFL2200LL circuit breaker?
This breaker is designed to mount into vintage Zinsco load centers and panelboards that accept QFL frame molded case circuit breakers.
Is there a modern replacement for the Zinsco QFL2200LL?
Yes, the Connecticut Electric UBIZ2200 is a recognized modern cross-reference that serves as a direct drop-in replacement for this specific profile.
How does the QFL2200LL connect within the panel?
It features a feed-thru connection design and installs as a unit mount breaker. It includes line and load lugs that accept 2/0 AWG to 300 kcmil aluminum or copper wire.
Are there safety concerns associated with legacy Zinsco breakers?
Yes, vintage Zinsco panels and breakers have a documented history of failing to trip under overcurrent conditions and experiencing poor busbar connections, which can lead to arcing and overheating. Many electricians recommend full panel replacements when these issues are present.
What type of trip protection does the QFL2200LL provide?
It utilizes standard thermal magnetic trip technology with fixed long-time and instantaneous (LI) trip functions to protect against overloads and short circuits.
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