参数资料
型号: LK2660-7EPD1T
厂商: POWER-ONE INC
元件分类: 电源模块
英文描述: 2-OUTPUT 150 W AC-DC REG PWR SUPPLY MODULE
封装: HEAT SINK, METAL, CASE K02, MODULE
文件页数: 10/26页
文件大小: 1027K
代理商: LK2660-7EPD1T
Cassette Style
AC-DC Converters
K Series
Edition 5/5.2000
18/26
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.
Installation Instructions
The K series AC-DC converters are components, intended
exclusively for inclusion within other equipment by an in-
dustrial assembly operation or by professional installers. In-
stallation must strictly follow the national safety regulations
in compliance with the enclosure, mounting, creepage,
clearance, casualty, markings and segregation require-
ments of the end-use application.
Connection to the system shall be made via the female con-
nector H15/H15 S4 (see:
Accessories). Other installation
methods may not meet the safety requirements.
The AC-DC converters are provided with pin no. 24 ( ),
which is reliably connected with their case. For safety rea-
sons it is essential to connect this pin with the protective
earth of the supply system.
An input fuse is built-in in the connection from pins no. 30
and 32 (P ) of the unit. Since this fuse is designed to pro-
tect the unit in case of an overcurrent and does not neces-
sarily cover all customer needs, an external fuse suitable
for the application and in compliance with the local require-
ments might be necessary in the wiring to one or both input
potentials, pins nos. 26 and 28 and/or nos. 30 and 32.
Important: Whenever the inhibit function is not in use, pin
no. 18 (i) should be connected to pin no. 14 (S–/Vo1–) to
enable the output(s).
Do not open the modules, or guarantee will be invalidated.
Due to high current values, all LK units provide two inter-
nally parallel connected contacts for certain paths (pins 4/6,
8/10, 26/28 and 30/32, respectively). It is recommended to
connect load and supply to both female connector pins of
each path in order to keep the voltage drop across the con-
nector pins to an absolute minimum and to not overstress
the connector contacts if currents are higher than
approx. 8 A. The connector contacts are rated 8 A over the
whole temperature range.
Make sure that there is sufficient air flow available for con-
vection cooling. This should be verified by measuring the
case temperature when the unit is installed and operated in
the end-use application. The maximum specified case tem-
perature
TC max shall not be exceeded. See also: Thermal
Considerations.
If the end-product is to be UL certified, the temperature of
the main isolation transformer should be evaluated as part
of the end-product investigation.
Check for hazardous voltages before altering any connec-
tions.
Ensure that a unit failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also:
Safety
of operator accessible output circuit.
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).
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.
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