Engineered for older residential applications, the QCAL80 is an 80A, two-pole molded case circuit breaker. It delivers dependable thermal-magnetic trip protection for legacy electrical systems requiring a thick-series profile. This plug-on unit mounts into vintage Zinsco panelboards, providing an exact fit without modifications. It replaces the UBIZ280, matching the necessary 1.5-inch width to integrate into existing busbars. Featuring a 10 kAIC rating at 120/240VAC, it is HACR rated.
What load centers are compatible with the Zinsco QCAL80?
The QCAL80 is a plug-on circuit breaker designed specifically for vintage Zinsco and Sylvania Type QC load centers and panelboards.
What is the direct aftermarket replacement for the QCAL80?
The Connecticut Electric UBIZ280 is the direct, UL 489 listed aftermarket replacement for obsolete Zinsco QCAL80 and QC80 circuit breakers.
What wire gauge is accepted by the QCAL80 box lugs?
The terminals on this breaker accept 14 AWG to 2 AWG copper or aluminum wire.
What is the physical width of the QCAL80 breaker?
The QCAL80 is a thick-series breaker with a 1.5-inch wide body, occupying two standard spaces in a Zinsco load center.
Why are original Zinsco QCAL80 breakers considered obsolete?
Original Zinsco panels and breakers were discontinued decades ago due to documented safety hazards, including busbar arcing and failure to trip. Modern aftermarket replacements are manufactured to current safety standards for maintenance purposes.
Is the QCAL80 suitable for HVAC equipment?
Yes, modern replacements for the QCAL80 are HACR rated, making them approved for use with heating, air conditioning, and refrigeration motor loads.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.