Based on this product's specifications, here are some alternatives and similar models
Keno SH-6 DC Hermetic Connection Box with DC Surge Arrester, 1000V, Type 1+2, for 2 PV Strings and 2 MPPT
Summary description:
The Keno SH-6 DC hermetic connection box is designed for photovoltaic systems, providing reliable protection with an integrated Type 1+2 DC surge arrester. Rated for 1000V, this unit supports 2 PV strings and 2 MPPT inputs. It ensures safe and efficient electrical distribution in solar installations, protecting equipment from voltage spikes. The robust, weather-resistant enclosure is suitable for demanding outdoor environments.