The first level cabinet adopts bottom in and bottom out lines, with front doors open. 81 ft)] for standard cable lengths. Actual units use PNP status indicator, NPN status indicator, or neither. Dimensions are shown in mm (in. Porcelain Cutouts shall be of reputed make. e ed in contact terminal o t side of the. The ABB MNS® low voltage distribution board and power cabinet are a new set of modular and multipurpose low-voltage products. Design requirements help you follow important standards like. The boxes should consist of Special type Lock & Key arrangement as well as provision for sealing for complete protection of the service connection contacts.