CO22-U Series Meter sockets. 200 A per position, single phase 120/240 V; multiple position combination with compartment with or without breaker. Conductor range: Line: Single 1/2 in. stud to accommodate compression lugs (supplied by utility), Load: 6 AWG-250 kcmil. Aluminum tunnel type connectors for load sides. For underground service only. Factory pre-bussed from main lugs to each position. Internal locking system for covers. Supplied with screw type sealing rings. Factory installed 2 pole circuit breaker, 10,000 A rms interrupting capacity. Siemens Type “QJ” breaker. Weatherproof Type 3R enclosure.