50 Amps CDN for Power Lines Com-Power CDN-M250E Coupling/Decoupling Network is designed specifically for conducted immunity testing (per IEC 61000-4-6) of products using two conductor power cable. The disturbance signals are coupled to each conductor individually. The CDN-M250E has a current rating of 50 Amps. Com-Power CDNs are available for power supplies from 1 to 5 conductors. This CDNs cover the frequency range of 150 kHz - 230 MHz.