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參數(shù)資料
| 型號(hào)： | LW30-01 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 3-OUTPUT 31 W AC-DC REG PWR SUPPLY MODULE |
| 文件頁(yè)數(shù)： | 8/9頁(yè) |
| 文件大小： | 373K |
| 代理商： | LW30-01 |
LW Series
AC-DC Converters <40 Watt
Benign Environment
Edition 4/4.99
8/9
MELCHER
The Power Partners.
Safety and Installation Instructions
Installation Instructions
Our AC-DC converters are components, intended exclu-
sively for inclusion within other equipment by an industrial
assembly operation or by professional installers. Installation
must strictly follow the national safety regulations in compli-
ance with the enclosure, mounting, creepage, clearance,
casualty, markings and segregation requirements of the
end-use application. See also:
Technical Information: In-
stallation and Application.
Connection to the system shall be made via the terminal
block at the rear side of the unit according to:
Terminal As-
signment.
For safety reasons it is essential to connect the FG and
ACG terminals with protective earth. See also:
Safety of op-
erator accessible output circuit.
A fuse is built-in in the connection from the L terminal of the
unit. Since this fuse is designed to protect the unit in case of
an overcurrent and does not necessarily cover all customer
needs, an external fuse suitable for the application and in
compliance with the local requirements should be installed
in the wiring to the phase terminal L. A second fuse in the
wiring to the neutral terminal N is needed if:
Local requirements demand an individual fuse in each
source line
Neutral and earth impedance is high or undefined
Phase and neutral of the mains are not defined or cannot
be assigned to the corresponding terminals (L to phase
and N to neutral)
Important: Do not open the modules, or guarantee will
be invalidated.
Make sure that there is sufficient air flow possible for con-
vection cooling. This should be verified by measuring the
ambient temperature when the unit is installed and oper-
ated in the end-use application. The maximum specified
ambient temperature
TA max must not not be overriden, de-
pending on output power and mounting method. See:
Ther-
mal Considerations and table: Allowed output power by
mounting method.
Case mounted on
material with good
heat conduction
Case side in
contact with
chassis
Air
Ample
spacing
09063
Upper panel
with good
ventilation
Air
Ample spacing
This surface in contact
with chassis side or
with convection cooling
Main chassis
Case mounted on material
with good heat conduction
09064
Fig. 8
Hoirizontal mounting
Fig. 9
Vertical mounting
Mounting Methods
Standards and approvals
The AC-DC converters correspond to class I equipment
and are UL recognized according to UL 1950, UL recog-
nized for Canada to CAN/CSA C22.2 No. 950-95 and LGA
approved to IEC/EN 60950 standards.
The units have been evaluated for:
Building in,
Basic insulation between input and frame and double or
reinforced insulation between input and output, based on
their maximum input voltage.
Operational insulation between output and frame,
The use in a pollution degree 2 environment,
Connecting the input to an overvoltage category II circuit
if
>150 V or an overvoltage category III circuit if ≤150 V.
The AC-DC converters are subject to manufacturing sur-
veillance in accordance with the above mentioned UL,
CSA, EN and with ISO 9001 standards.
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. Melcher will not honour any guar-
antee claims resulting from electric strength field tests.
Table 9: Isolation
Characteristic
Input to
Output to
Unit
frame
output
frame
Electric strength
-
3.0 1
-kVrms
test voltage 1 s
-
4.3 1
-kV DC
Insulation resist.
>100
M
at 500 V DC
Leckage current
<15
mA
1 In accordance with IEC/EN 60950 only subassemblies are
tested in factory with this voltage.
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