This is a waterproof switch (SW) that was attached to a Koshin Ikari. (BSW330B3) 220V 3.7kW This item is no longer needed due to the replacement of the Ikari. According to the previous user, it was used without any problems, but we have not confirmed this. As it is an old item, there may be scratches and deterioration due to aging. Please understand. Returns and claims are not accepted. (Please understand) As this is a used item as described, we cannot provide a warranty. We ask that you prioritize the current condition (not covered by warranty). We cannot provide support for use or installation. If you have any questions, please ask or inspect the item in person.