EN 50121-4Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus ESD3000Handheld ESD Simulator with modular discharge networks ESD3000 IMU-MGS5KV EFT/Burst and SURGE compact generator IMU-MGS ESD3000DM1Electrostatic Discharge Module 150pF, 330 Ohm for AD up to 16kV, CD up to 10kV ESD3000DM1 CN-R40C05Direct Coupling Network for Railway Applications CN-R40C05 CDN-A-8-32EFT, Surge & Ring wave automatic 3-phase CDN for power supply lines. EUT max 690Vac / 1500Vdc / 32A per phase CDN-A-8-32 EFT, Surge & Ring wave automatic 3-phase CDN for power supply lines. EUT max 690Vac / 1500Vdc / 32A per phase CN-R40C05Direct Coupling Network for Railway Applications CN-R40C05 Direct Coupling Network for Railway Applications CDN-A-6-32EFT, Surge & Ring wave automatic 3-phase CDN for power supply lines. EUT max 690Vac / 1500Vdc / 32A per phase CDN-A-6-32 EFT, Surge & Ring wave automatic 3-phase CDN for power supply lines. EUT max 690Vac / 1500Vdc / 32A per phase Testing railway signalling and telecommunications apparatusIEC / EN productEN 50121-4