The Hydel EK400RO is a 200A combination overhead/underground meter socket for service entrance applications where a 4-jaw, 600V, single-position meter base with an oversize enclosure is required. It is especially relevant for Ontario contractors looking for a Hydel combination meter base that can support isolated-neutral configuration through the INK200 insulated neutral accessory. Commonly searched as Hydel EK400RO, 200A combination meter socket, and Ontario 200A meter base. Designed for utility-facing service entrance projects. Useful where a combination overhead / underground meter socket is preferred. Supports insulated-neutral configuration with the compatible Hydel INK200 accessory. Specifications Brand Name Hydel Item Name Meter Socket Type Overhead, Underground Amperage Rating 200 A Voltage Rating 600 V Number of Jaws 4 NEMA Rating NEMA 3 Series/Model EK Dimensions 12 in W x 4-3/4 in D x 18 in H Standards CSA Certified UPC 620757050204