Zinsco UBIZ2100 – 100A 2 Pole Miniature Circuit Breaker Place Order

Manufactured to meet modern safety standards, this 100-amp residential component provides reliable thermal-magnetic protection. It serves as a crucial maintenance part for older electrical systems. As an exact drop-in substitute, it replaces the obsolete QCAL100 model. The unit mounts into classic Zinsco Type QC load centers, ensuring a precise fit without modification kits. Featuring a 10kAIC rating, it delivers essential short-circuit defense and carries a HACR certification.