Based on this product's specifications, here are some alternatives and similar models
3-phase Power Splitter SEZ ROP 3253 — input 1×32A 5P, outputs 3×32A 5P, IP44
Summary description:
SEZ ROP 3253 is a 3-phase power splitter designed for distributing a single 1×32A five-pole (5P) input to three separate 32A 5P outputs. Rated with IP44 protection, it suits indoor and sheltered outdoor use where splash and solid-object protection are required. Typical applications include temporary power distribution on construction sites, event power feeds, and industrial machinery feed splitting.