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参数资料
| 型号： | LPC1902-9 |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 230 W AC-DC PWR FACTOR CORR MODULE |
| 封装： | METAL, CASE Q03, MODULE |
| 文件页数： | 5/5页 |
| 文件大小： | 409K |
| 代理商： | LPC1902-9 |
Pr
eliminar
y
Industrial Environment
AC-DC Converters >100 Watt
PC Series
Edition 4/7.99
5/5
MELCHER
The Power Partners.
Isolation
The electric strength test is performed as a factory test in
accordance with IEC/EN 60950 and UL 1950 and should
not be repeated in the field. Melcher will not honour any
guarantee claims resulting from electric strength field tests.
Table 4: Isolation
Characteristic
Input to
Unit
case
Electric
Required according to
1.0
kVrms
strength
IEC/EN 60950
1.4
kV DC
test
Actual factory test 1 s
2.1
voltage
AC test voltage equivalent
1.5
kVrms
to actual factory test
Insulation resistance at 500 V DC
>300
M
For creepage distances and clearances refer to:
Technical
Information: Safety.
Safety of operator accessible output circuit
If the output circuit of a power supply system is operator
accessible, it shall be an SELV circuit according to the IEC/
EN 60950 related safety standards.
Since the output circuit of a PC series AC-DC converter is a
primary circuit, it must be non user accessible. In order to
generate an accessible SELV output circuit, a DC-DC con-
verter, with double or reinforced insulation between input
and output must be connected to the output of a PC series
AC-DC converter. See:
Schematic safety concept.
LPC
AC-DC
front
end
DC-DC converter with
double or reinforced
insulation input to
output
Mains
Fuse
Suppressor
diode
SELV
Earth
connection
+
–
~
10063
Fuse
Earth
connection
Fuse
Earth
connection
Fig. 3
Schematic safety concept
Use input fuses and earthing of the AC-DC converter as per:
Installation Instructions of this data sheet.
Use input fuses, earth connection of the DC-DC converter and suppressor diode as per:
Installation Instructions and per
table:
Safety concept leading to an SELV output circuit of the data sheet of the corresponding DC-DC converter.
Leakage Currents
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. They are specified at maximum oper-
ating input voltage where phase, neutral and protective
earth are correctly connected as required for class I equip-
ment.
Table 5: Leakage currents
Characteristic
Unit
Earth
Permissible according to
3.5
mA
leakage
IEC/EN 60950
current
Specified value at 255 V, 50 Hz
1.1 1
1 Leakage current of one LPC unit operating alone. This value will
increase when powering DC-DC converters of the P or Q series
or any other load with an internal capacitance between its in-
puts and earth. When LPC units are operated in parallel, the
leakage current of the system will increase linearly with the
number of paralleled units.
Refer to the:
Safety concept leading to an SELV output cir-
cuit tables of the H, K, M, P, Q and S series DC-DC con-
verter data in order to ensure that the output of the DC-DC
converter, which is supplied by the PC series AC-DC con-
verter, is an SELV circuit according to IEC/EN 60950.
It is the sole responsibility of the installer to ensure the com-
pliance with the relevant and applicable safety regulations.
More information is given in:
Technical Information: Safety.
Description of Options
Option D
Converter OK Signal
Option D indicates the status of the converter. When the in-
put voltage is within the upper and lower limit and the output
is above the lower limit the converter delivers an electrically
isolated logic Low. Available hold-up time minimum 4 ms.
Table 3: Temperature specications, valid for air pressure of 800...1200 hPa (800...1200 mbar)
Temperature
Standard -7
Option -9
Characteristics
Conditions
min
max
min
max
Unit
TA
Ambient temperature
Operational
–25
71
–40
71
°C
TC
Case temperature
–25
95
–40
95
TS
Storage temperature
Not operational
–40
100
–55
100
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