Technical data, mounting, wiring
PS1021-2405-0000
25
Version: 1.0
3.15
Dielectric strength
The output voltage is earth-free and has no ohmic connection to earth.
Type and component tests are carried out by the manufacturer. Field tests can be performed in the field
using suitable test equipment that ramps up the voltage with a slow ramp (2s rising and 2s falling). Connect
all input terminals and all output poles to each other before performing the tests. During the test, set the cut-
off current to the value shown in the table below.
To meet the PELV requirements according to EN60204-1 section 6.4.1, we recommend that either the
positive pole, the negative pole or any other part of the output circuit is connected to the protective earthing
system. This helps to avoid situations where a load starts unexpectedly or cannot be disconnected if an
unnoticed earth leakage occurs.
Fig. 12: Dielectric strength
B
*)
When checking the input to DC-OK, make sure that the maximum voltage between DC-OK and the output
is not exceeded (column D). We recommend connecting the DC-OK pins and the output pins when
performing the test.
A
B
C
D
Type test
60s
2500Vac
3000Vac
1000Vac
500Vac
Component test
5s
2500Vac
2500Vac
500Vac
500Vac
Field test
5s
2000Vac
2000Vac
500Vac
500Vac
Setting the cut-off current
> 10mA
> 10mA
> 15mA
> 1 mA
