PratiKa coupling. Rated voltage 400 V, rated current 63 A, number of poles 3p+N+E, protection class IP 67. The filters operate in a switching frequency range between 2 and 8 kHz. Standard EN 60309, CE marking, protection class according to EN 60529 IP44 or IP67. Socket outlets in 16 A and 32 A with tool-free screwless cutting clamp technology for connecting multi-stranded or flexible conductors. Socket outlets in 63 A and 125 A with screw terminals. All plugs come standard with nickel-plated contact pins for high corrosion resistance.