Based on this product's specifications, here are some alternatives and similar models
Rittal TS 8612.040 Stainless Steel Housing for TS System Chassis, Silver, Max current 1 A, Depth 390 mm
Summary description:
Rittal TS 8612.040 is a stainless steel housing component for the Rittal TS system chassis. Finished in silver, it is compatible with TS internal mounting and rated for a maximum current of 1 A. With a depth of 390 mm, this housing suits internal assembly layers and is supplied in packs of 4 pieces for control cabinets and equipment enclosures.