consisting of: housing, H x W x D (mm): 1005 x 1110 x 315: glass fibre reinforced polyester FS 833.5 in accordance with DIN 16913, IP44, similar to RAL 7035, plastic mounting plate 6mm, door with double locking and a profile half cylinder with 2 keys, without base, power section, H x W (mm): 900 x 500: converter compartment, network and system-side connection compartment (NAR/AAR): substructure mounting plate (PVC 6mm), primary copper rails Cu 30 x 10mm tinned and nickel-plated, PEN rail with V-connection terminals 185mm² and contact protection cover, converter compartment with transparent converter cover, sealable, closed all around, including converter lug (170 x 40 x 10mm) in accordance with Form A in accordance with DIN0603-2-2, hole spacing 130mm and secondary wiring, including empty space for overvoltage protection, mains-side disconnection point (left): NH2 fuse switch strip, 3-pole switchable, with V connection terminals 185mm² and 1x empty space for further NH2 fuse switch strip (parallel feed) or overvoltage protection, system-side disconnection point (in the AAR): NH2 fuse switch strip, 3-pole switchable, measuring part, H x W (mm): 900 x 500: additional transformer compartment, H x W (mm): 300 x 250, with closed 3-point cover (300 x 250mm), equipped with voltage path fuse D01 3-pole and D01 1-pole (TRE) (including screw caps) under a sealable transparent cover and with 14-pole test terminal (X14) in accordance with TAB North, converter meter space, H x W (mm): 450 x 250, 3-point with secondary wiring and IP54 transparent cover, TRE space, H x W (mm): 450 x 250, 3-point with control wiring in accordance with TAB and IP54 transparent cover, mains-side connection space, H x W (mm): 300 x 250, with perforated 3-point cover and device support rail, without device assembly