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W Series Data Sheet
Table 14: Isolation
?
125, 250 Watt AC-DC and DC-DC DIN-Rail Converters
Characteristic
Input to case
and output(s)
Output(s) to
case
Output 1 to
output 2 and AUX
Unit
Electric
strength
test
Factory test ≥ 1 s
AC test voltage equivalent
to factory test
2.8 1
2.0
1.4
1.0
0.5
0.35
kVDC
kVAC
Insulation resistance
>300 2
>300 2
>100
M ?
1
2
In accordance with EN 50116 and IEC/EN 60950-1, subassemblies are pretested with 4.2 kVDC.
Tested at 500 VDC.
Isolation
The electric strength test is performed in the factory as routine
test in accordance with EN 50116 and IEC/EN 60950 and
should not be repeated in the field. Power-One will not honor
any warranty claims resulting from electric strength field tests.
Safety of Operator-Accessible Output Circuits
If the output circuit of a converter is operator accessible, it
shall be a SELV circuit according to IEC/EN 60950 related
safety standards.
The converters have SELV output circuits up to an output
voltage of 57.5 V. However, if the isolated outputs are
connected to another voltage source or connected in series
with a total of >57.5 V the outputs are hazardous.
It is the sole responsibility of the installer to ensure the
compliance with the relevant and applicable safety
regulations.
LED Indicator
A green LED is activated, when the output voltage V o is within
the normal operating tolerance band.
Note: This LED is also activated, when the converter is not
powered by the input, but a loaded battery is connected to the
output.
BCD20020-G Rev AC, 31-Jan-2013
Page 20 of 25
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