Milbank Ringless Small Hub Open Horn Bypass Meter Socket – 100A, 4 Terminal, 2–6 Position, Outdoor Utility Service

Position refers to the number of overcurrent device positions on the socket. The Milbank U736 ringless series runs from 2 position (U7362-RL-KK) up to 6 position (U7366-RL-KK), in single steps: U7363-RL-KK, U7364-RL-KK and U7365-RL-KK cover 3, 4 and 5. Pick the count to match the number of breaker spaces the service needs downstream. All five share the same 4 terminal, single phase, 60 hertz socket and the same small hub opening.

That is a utility call, not a product call. The Milbank U736 series is a ringless socket, meaning the cover seals to the socket without a sealing ring, which is what many utilities in the US specify for residential and light commercial service. If your serving utility's handbook calls for a ring type socket, this one will not pass inspection and you need a ring type instead. Confirm the requirement with the utility before you set the can.

It is a 4 terminal (4 jaw) socket, single phase, 60 hertz. That is the standard configuration for 120/240V single phase three wire residential and small commercial service. A network or 120/208V single phase service fed from a three phase wye typically wants a 5 jaw socket, so this is not the part for that.

The U736 series is built with a small hub opening, which is the smaller of Milbank's two standard top openings and takes a small hub fitting rather than a large one. The hub itself is a separate item, so order the correct small hub for your conduit trade size along with the socket. A large hub will not fit this opening.

It is an open horn bypass. The bypass lets the utility pull or change the meter without dropping load, which is exactly why many utilities require a bypass socket on their approved list. Open horn style keeps the bypass jaws exposed and operable from the front once the cover is off.

Yes, it is built for outdoor utility service. The enclosure is G90 galvanized steel with a powder coat finish, which is the standard corrosion package for exterior meter mains. It surface mounts to the wall rather than recessing into it, so plan for a flat, solid mounting surface and back it up with proper sealing at the hub and around the enclosure.

Lay in terminals come on the socket. You strip the conductor, lay it into the terminal and tighten, rather than threading it through a closed barrel lug. That speeds the termination on a service entrance where you are working with stiff large gauge copper or aluminum.

Yes, the U736 ringless bypass socket is UL Listed. The insulating base is glass polyester, the standard high dielectric material for a socket that has to hold jaw alignment through repeated meter pulls.

For 120/240V single phase services up to 100A where the utility accepts ringless, yes. Every position count from 2 through 6 in the U736 series uses the same 4 terminal single phase socket, the same small hub opening and the same G90 galvanized powder coated enclosure, so hubs, covers and install details stay consistent across the sites and only the position count changes per service.