Datasheet

UF20.481
UF-Series
48V, 20A, 100MS, BUFFER MODULE
21. DIELECTRIC STRENGTH
The signal port (active and ready signal and inhibit input) is floating and separated from the supply voltage.
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 poles of the
power port terminals together as well as all poles of the signal port before conducting the test. When testing, set the
cut-off current settings to the value in the table below. The following isolation tests were performed:
Fig. 21-1 Dielectric strength
A B C
Type test 60s 500Vac 500Vac 500Vac
14/18
Factory test 5s 500Vac 500Vac 500Vac
Field test 5s 500Vac 500Vac 500Vac
Cut-off current setting > 1mA > 1mA > 1mA
Supply
Voltage
Chassis
Active and Ready Signal
Inhibit Input
A
CB
22. APPROVALS
EU Declaration of Conformity The CE mark indicates conformance with the EMC directive
CB Scheme,
Information Technology Equipment
IEC 60950-1
2
nd
Edition
Recognized for use as Information Technology Equipment,
U.S.A. (UL 60950-1) and Canada (C22.2 No. 60950-1);
E-File: E137006
UL 60950-1
2
nd
Edition
UL 508 Listed for use as Industrial Control Equipment;
U.S.A. (UL 508) and Canada (C22.2 No. 107-1-01);
E-File: E198865
IND. CONT. E
Q.
Oct. 2016 / Rev. 2.0 DS-UF20.481-EN
All parameters are specified at 48V, 20A, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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