QO All In One combination service entrance devices are available with ring or ringless type meter socket designs. Devices have factory installed service disconnect(s) in most cases. Supplied with 100% branch neutrals, all unused terminals may be used for equipment grounding wires. These Homeline combination service entrance devices meet the Federal Specification W-P-115c as Type 1, Class 2 specifications. This QO All In One combination service entrance device has a ringless meter socket with no bypass. This unit can be feed from an overhead or underground service. The service disconnect, which must be ordered separately, is a QOM2 VH (200 A maximum) and a QO VH (50 A maximum). Device has a 22 kA short circuit current rating. Load center has no spaces. This unit has a NEMA 3R surface mounting enclosure that is 18.23 inches tall, 19.58 inches wide and 4.60 inches deep. The line side lugs will accept 6 AWG to 350 kcmil copper or aluminum wire. The service ground lug will accept up to two 8 AWG to 2/0 AWG copper or aluminum wire. This QO combination service entrance device is UL Listed. Device meets EUSERC standards.