ZIEHL-ABEGG PMIcontrol Basic-M Series Operating Instructions Manual

ZIEHL-ABEGG PMIcontrol Basic-M Series Operating Instructions Manual Manual pdf 30 page image

5.4.4 UL: Short-circuit protection for branch circuits (NEC, CEC)Danger due to electric currentThis power conversion equipment is suitable for connection to electric circuits that cannot supply morethan a certain symmetrical current effective.Please note the additional information under appendix / UL specifications / UL: Short Circuit CurrentRating.5.4.5 Leakage current, securely attached, protective earth conductorDanger due to electric currentThe maximum leakage current depends on the type of device and the connected mains voltage (seeTechnical Data). With regard to fixed connection and the type of PE conductor connection, thespecification for the leakage current must be observed under consideration of the locally validstandards (for Europe see EN 50178 Section 5.2.11 or 5.3.2.1 etc.).Minimum cross-section for PE conductor for fixed connection = 1.5 mm2!5.4.6 Operating in IT-SystemUse in an IT earthing system is possible, please note the following points in this respect.Danger due to electric current• In the IT-System the neutral point of voltage supply is not grounded; in the case of a short-circuitbetween a phase (e.g. “L1”) and protective earth “PE” becomes the protective earth potential =phase.• Between the mains connection of the device and the protective earth “PE” is in no case a highervoltage permissible than the indicated line voltage of the device!• Capacitors are installed between the housing potential and the intermediate circuit to reduce radiointerference voltages. This must be considered for the choice of insulation monitoring device!5.4.7 Operation in Grounded Delta SystemA device must be selected which allows operation on the existing network type.Source of energydelta_grounded_networks.eps15.06.2012In Delta System with earthed line phase the maximum voltage between a phaseand the protective earth is as high as the voltage between two phases.In the ECblue versions described here, the specified line voltage (see TechnicalData) is permitted at the maximum between the mains connection and the "PE"conductor and they are therefore suitable for use in a Grounded Delta System!5.5 Residual-current-operated protective deviceDanger due to electric currentFor an installation of r.c.d. protection, it shall be observed that this must be of “universal-currentsensitivity” (Type B). In accordance with EN 50 178, Section. 5.2. other types of current-operatedprotective devices may not be used. To ensure as high a degree of reliability as possible , werecommend a tripping current of 300 mA.Operating Instructions PMIcontrol Basic-M – model series FSDM5...46 Electrical installationL-BAL-E300-GB 1905 Index 001 Part.-No.30/48