B84112G0000B030 Datasheet, PDF (12/13 Pages) EPCOS – 2−line filters SIFI−G for enhanced insertion loss

2−line filters
SIFI−G for enhanced insertion loss
B84112G0000*
Caution and warnings
S Please note the advices in our data book “EMC Filters” (latest edition); attention should
be paid to the chapter “General safety notes”.
S It shall be ensured that only qualified persons (electricity specialists) are engaged on work
such as planning, assembly, installation, operation, repair and maintenance. They must
be provided with the corresponding documentation.
S Danger of electric shock. EMC filters contain components that store an electric charge.
Dangerous voltages can continue to exist at the filter terminals for longer than five min-
utes even after the power has been switched off.
S The protective earth connections shall be the first to be made when the EMC filter is
installed and the last to be disconnected. Depending on the magnitude of the leakage cur-
rents, the particular specifications for making the protective−earth connection must be ob-
served.
S Impermissible overloading of the EMC filter, such as with circuits able to cause reso-
nances, impermissible voltages at higher frequencies etc. can lead to bodily injury and
death as well as cause substantial material damages (e.g. destruction of the filter hous-
ing).
S EMC filters must be protected in the application against impermissible exceeding of the
rated currents by overcurrent protective.
S In case of leakage currents > 3.5 mA you shall mount the PE conductor stationary with
the required cross section before beginning of operation and save it against disconnect-
ing. For leakage currents I_L ⁴⁾ < 10 mA the PE conductor must have a KU value ³⁾ of 4.5;
for leakage currents I_L q 10 mA the PE conductor must have a KU value of 6.
3) The KU value (symbol KU) is a classification parameter of safety−referred failure types designed to ensure protection against hazardous
body currents and excessive heating.
A value of KU = 4.5 with respect to interruptions is attained:
− with a permanently connected protective earth circuit w 1.5 mm²
− with a protective earth circuit w 2.5 mm² connected via shroud connectors (IEC 60309−2).
KU = 6 with respect to interruptions is achieved for fixed−connection lines w 10 mm² where the type of connection and line layout corre-
spond to the requirements for PEN conductors as specified in relevant standards.
4) I_L = leakage current let−go
Please read and Cautions and warnings and
Important notes at the end of this document.
Page 12 of 13
B84112-G0000-*-09-7659