Zinsco QCAL-30N Molded Case Circuit Breaker 2-Pole

The Zinsco QCAL-30N molded case circuit breaker is a 30 Amp, 2-Pole unit designed for use in Zinsco / GTE Sylvania load centers and operates on 240 VAC. It employs a thermal-magnetic trip (LI – long-time & instantaneous) to protect circuits from overloads and short circuits and uses a plug-in / snap-in mounting in the QC/QCAL series. With an interrupt rating of approximately 10 kAIC at 240V and a single-phase configuration, this 2-pole device protects 240V branch circuits such as air conditioners, water heaters, pumps, and compressors; it is intended for legacy panels and is typically used for maintenance or replacement of existing installations rather than new construction. This unit is obsolete / discontinued, and common replacements include Siemens Q230 2-Pole 30A Circuit Breaker and Square D QO230 2-Pole 30A Circuit Breaker.