This 2500 A switchgear rated 50 Hz utilizes 99.9 % pure copper busbars with 10 µm silver plating for <20 µΩ joint resistance. Standard short-circuit withstand is 50 kA/1 s, with optional 65 kA or 100 kA upgrades. The frame accepts IEC, UL and GOST accessories in one platform, simplifying multinational projects.