Based on this product's specifications, here are some alternatives and similar models
Connection Adapter Rittal 9342.240 — width 55 mm, height 210 mm, weight 380 g
Summary description:
Rittal Connection Adapter model 9342.240 for electrical enclosures and system installations. Physical dimensions: width 55 mm, height 210 mm, weight 380 g. Designed to provide reliable mechanical and electrical connection between components in control cabinets and distribution systems. Suitable for industrial panel assembly, retrofit and maintenance tasks.