) used for cathodic protection. These anodes are made of high-purity zinc alloyed with small amounts of aluminum and cadmium to ensure they corrode evenly and don't "passivate" (develop a crust that stops them from working). Key Technical Specifications Based on industry standards like those found on , here is what you can expect from a 620-series datasheet: Potential: Approximately
The "620" designation typically refers to a specific weight or size class in the marine industry, often weighing approximately 10–12 lbs (4.5–5.5 kg) depending on the specific manufacturer (e.g., Martyr, Camp, or Tecnoseal). Physical Dimensions (Standard) 12 inches (305 mm) Width: 3 inches (76 mm) Thickness: 1.25 inches (32 mm) Bolt Centers: 6 inches (152 mm) — Common for "620" series Weight: ~11.5 lbs (Zinc alloy) Chemical Composition zinc anode 620 datasheet
Technical Overview of the 620 Zinc Anode: Specifications, Applications, and Performance ) used for cathodic protection