5.4.4 UL: Short-circuit protection for branch circuits (NEC, CEC)
Danger due to electric current
This power conversion equipment is suitable for connection to electric circuits that cannot supply more
than a certain symmetrical current effective.
Please note the additional information under appendix / UL specifications / UL: Short Circuit Current
Rating.
5.4.5 Leakage current, securely attached, protective earth conductor
Danger due to electric current
The maximum leakage current depends on the type of device and the connected mains voltage (see
Technical Data). With regard to fixed connection and the type of PE conductor connection, the
specification for the leakage current must be observed under consideration of the locally valid
standards (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 mm
2
!
5.4.6 Operating in IT-System
Use 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-circuit
between 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 higher
voltage permissible than the indicated line voltage of the device!
•
Capacitors are installed between the housing potential and the intermediate circuit to reduce radio
interference voltages. This must be considered for the choice of insulation monitoring device!
5.4.7 Operation in Grounded Delta System
A device must be selected which allows operation on the existing network type.
Source of energy
In Delta System with earthed line phase the maximum voltage between a phase
and the protective earth is as high as the voltage between two phases.
In the ECblue versions described here, the specified line voltage (see Technical
Data) 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 device
Danger due to electric current
For an installation of r.c.d. protection, it shall be observed that this must be of “universal-current
sensitivity” (Type B). In accordance with EN 50 178, Section. 5.2. other types of current-operated
protective devices may not be used. To ensure as high a degree of reliability as possible , we
recommend a tripping current of 300 mA.
Operating Instructions PMIcontrol Basic-M – model series FSDM5...46 Electrical installation
L-BAL-E300-GB 1905 Index 001 Part.-No.
30/48
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