Datasheet

CD5.243
CD-Series
DC/DC Converter 24V, 4A
16. DIELECTRIC STRENGTH
The output voltage is floating and has no ohmic connection to the ground.
Type and factory tests are conducted by the manufacturer. Field tests may be conducted in the field using the
appropriate test equipment which applies the voltage with a slow ramp (2s up and 2s down). Connect all phase-
terminals together as well as all output poles before conducting the test. When testing, set the cut-off current settings
to the value in the table below.
Fig. 16-1 Dielectric strength
A B C
Type test 60s 1500Vac 1500Vac 500Vac
Factory test 5s 1500Vac 1500Vac 500Vac
Field test 5s 1000Vac 1000Vac 500Vac
Cut-off current setting > 30mA > 30mA > 12mA
A
C
B
+
Input
Chassis
ground
Output
-
+
-
To fulfill the PELV requirements according to EN60204-1 § 6.4.1, we
recommend that either the + pole, the – pole or any other part of
the output circuit shall be connected to the protective earth
system. This helps to avoid situations in which a load starts
unexpectedly or can not be switched off when unnoticed earth
faults occur.
Mar. 2016 / Rev. 1.3 DS-CD5.243-EN
All parameters are specified at 24V, 4A, 12Vdc input voltage, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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