Rainproof galvanized steel enclosure. Single phase, 3 wire, insulated/bondable movable neutral, 6 (1 in ) spaces, 12 poles, 120/240 volt AC. With closure plates, hubs and No.GBK10 ground bar kits (necessary for sub-feeding) sold separately. Tin-plated aluminum bus bar. In accordance with NEC, suitable for use as service equipment when a main breaker is used or when not more than 6 service disconnecting mains are provided and when not used as a lighting and appliance panelboard. When bonded, unused neutral connections may be used for equipment ground protectors in service entrance application. #14-#1 wire range. Electrostatic powder coat, baked urethane painted. Style 7R box 11 in x 13 in x 3-9/16 in UL Listed file E8741.