The CNV 504 / 508 T-series is also designed as per figure A4 of IEC 61000-4-5 Ed.3 without primary protector. If required, an additional primary protector must be integrated according the user specifications.
With short circuit bridges and individual designed coupling devices the user can easy modify the coupling mode and number of tested lines to the requirements.
EM TEST offers CNV 504 / 508 T-series coupling/decoupling networks for test voltages up to 5kV.