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| 型号： | LS1501-9RDDB2 |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 100 W AC-DC REG PWR SUPPLY MODULE |
| 封装： | METAL, CASE S02, MODULE |
| 文件页数： | 10/25页 |
| 文件大小： | 591K |
| 代理商： | LS1501-9RDDB2 |
Cassette Style
100 Watt AC-DC (DC-DC) Converters
S Series
Edition 01/01.2001
18/25
Table 13: Isolation
Characteristic
Input to
Output to Output to
Unit
case
output
case
output
Electric
Required according to
1.5
3.0 1
––
kVrms
strength
IEC/EN 60950
2.1
4.2 1
––
kV DC
test voltage
Actual factory test 1 s
2.8
5.6 1
1.4
0.14
AC test voltage equivalent
2.0
4.0 1
1.0
0.1
kVrms
to actual factory test
Insulation resistance at 500 V DC
>300
>100 2
M
1 In accordance with IEC/EN 60950 only subassemblies are tested in factory with this voltage.
2 Tested at 100 V DC.
For creepage distances and clearances refer to:
Technical Information: Safety.
Leakage Currents in AC-DC operation
Leakage currents flow due to internal leakage capacitance
and RFI suppression Y-capacitors. The current values are
proportional to the mains voltage and nearly proportional to
the mains frequency and are specified at an input voltage of
264 V (50 Hz) where phase, neutral and protective earth
are correctly connected as required for class I equipment.
V
MI
500
1500
10 k
220 nF
22 nF
10061
Vo+
Vo–
N
P
10062
N
P
MI for
earth
leakage
current
Protection Degree
Condition: Female connector fitted to the unit.
IP 30: All units except those with option P, and except
those with option D or V with potentiometer.
IP 20: All units fitted with option P, or with option D or V with
potentiometer.
Cleaning Agents
In order to avoid possible damage, any penetration of
cleaning fluids is to be prevented, since the power supplies
are not hermetically sealed.
Fig. 24
Measuring instrument (MI) for earth leaking current tests
according to IEC/EN 60950.
Fig. 25
Test set-up
Isolation
The electric strength test is performed as factory test in ac-
cordance with IEC/EN 60950 and UL 1950 and should not
be repeated in the field. Power-One will not honour any
guarantee claims resulting from electric strength field tests.
Important: Testing by applying AC voltages will result in
high and dangerous leakage currents flowing through
the Y-capacitors (see fig.:
Block diagram).
Under test conditions the leakage current flows through a
measuring instrument (MI) as described in fig.:
Measuring
instrument for earth leakage current tests, which takes into
account impedance and sensitivity of a person touching
unearthed accessible parts. The current value is calculated
by dividing the measured voltage by 500
. If inputs and/or
outputs of S-units are connected in parallel, their individual
leakage currents are added.
Table 14: Leakage currents
Characteristic
Class I
LS 1000, LS 2000
Unit
Maximum earth
Permissible according to IEC/EN 60950
3.5
mA
leakage current
Specified value at 264 V, 50 Hz
1.43
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