Zinsco QCAL-15N 2-Pole Molded Case Circuit Breaker

The Zinsco QCAL-15N is a 15 Amp, 2-Pole molded‑case circuit breaker designed for use in Zinsco / GTE Sylvania load centers. It operates on 240 VAC and uses a thermal-magnetic trip to protect against overloads and short circuits. The QCAL-15N features plug‑in (snap‑in) mounting for QC/QCAL series panels and is specified as 15A, 240V, 2-pole with an interrupt rating of approximately 10 kAIC (typical). Applications include residential and light commercial 240V branch circuits such as small HVAC units, pumps, water heaters, and dedicated appliance loads requiring 15A protection. This breaker is obsolete/discontinued and intended for legacy panels, with surplus or aftermarket availability. Common replacements include Connecticut Electric UBIZ215 2-Pole 15A Zinsco Replacement Breaker, Siemens Q215 2-Pole 15A Circuit Breaker, and Square D QO215 2-Pole 15A Circuit Breaker.