Based on this product's specifications, here are some alternatives and similar models
Hensel FK 1616 Fire-Resistant Surface-Mounted Junction Box E90 IP65 5x16mm2
Summary description:
The Hensel FK 1616 is a high-quality fire-resistant surface-mounted junction box designed for electrical installations requiring E90 fire integrity. Featuring an IP65 protection rating, it ensures reliable performance in demanding environments. This robust enclosure is equipped for 5x16mm2 connections, providing a secure and durable solution for maintaining circuit integrity during fire events in industrial and commercial buildings.