The RK series consists of solid-state relay (SSR) solutions that have two poles in a single housing. It gives the option of having the two poles controlled independently or simultaneously. The latter offers a cost-effective solution for economy switching of three-phase loads. The SSRs are suitable for reliable switching of resistive loads. This series extends the current ratings of two-pole solid-state relays to 75 Aac per pole with a proper heat sink and provides output screw terminals for secure connectivity of cables with ferrules, ring or fork terminals. It conforms to global standards such as UL 508, CSA C22.2 and EN 60947-4-3.