The YACHZINCS.COM solid state 30AMP De-coupling devices are a solid state DC isolation/AC grounding devices designed for specific applications in cathodically protected equipment. The equipment is suitable to be employed in AC mitigation applications, over voltage protection, DC isolation and AC grounding of cathodically protected structures. The units range from 3.5KVA to 10.0KVA fail safe criteria. The units are easily mounted and connected to the ground wire for yachts and boats to eliminate anode current loss to the AC dock power grounding system saving up to 40% of the anode current loss. This De-coupling device will save you on premature anode replacement.