Zinsco RC38AL30 Two Pole Tandem Circuit Breaker

The Zinsco RC38AL30 Two Pole Tandem Circuit Breaker is a 30 Amp, 120/240 V AC molded‑case unit designed for Zinsco load centers, providing overcurrent protection in a single 2‑pole space. Its tandem RC38 frame (thin/twin design) enables installation in panels with limited space and is intended as a replacement in legacy Zinsco systems for branch circuits that feed 240V loads in residential and light commercial panels, such as water heaters, small HVAC units, and appliances. Key specs include MPN RC38AL30; 2‑pole; 30 A; 120/240 V AC; single‑phase (1PH); plug‑in mounting for Zinsco panels; thermal‑magnetic breaker type; frame RC38; and common replacements include Connecticut Electric UBIZ0230 and Zinsco RC38-30.