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參數資料
| 型號： | 12H3040-2D7 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 3-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, CASE H02, MODULE |
| 文件頁數： | 5/19頁 |
| 文件大小： | 356K |
| 代理商： | 12H3040-2D7 |
H Series Data Sheet
50 Watt DC-DC Cassette Converters
REV. MAR 27, 2006
Page 13 of 19
www.power-one.com
Table 14: Isolation
Characteristic
Input to
Output
Unit
case
output
to case
to output
Electric
Required according to
1.5
3.0 1
0.5
-
kVrms
strength
IEC/EN 60950
2.1
4.2 1
0.7
-
kVDC
test voltage
Actual factory test 1 s
2.8
5.6 1
1.4
0.3
AC test voltage equivalent
2.0
4.0 1
1.0
0.2
kVrms
to actual factory test
Insulation resistance at 500 VDC
>300
>100 2
M
Ω
1 In accordance with IEC/EN 60950 only subassemblies are tested in factory with this voltage.
2 Tested at 300 VDC.
For creepage distances and clearances refer to:
Technical Information: Safety.
Cleaning Agents
In order to avoid possible damage, any penetration of
liquids (e.g. cleaning fluids) is to be prevented, since the
power supplies are not hermetically sealed.
Standards and Approvals
12H to 48H DC-DC converters correspond to class I
equipment. All types are UL recognized according to UL
1950, UL recognized for Canada to CAN/CSA C22.2 No.
950-95 and TV approved to IEC/EN 60950 standards.
The units have been evaluated for:
Building in
Supplementary insulation between input and case and
double or reinforced insulation between input and
output, based on 250 VAC and 400 VDC
Operational insulation between output(s) and case
Operational insulation between the outputs
The use in a pollution degree 2 environment
Connecting the input to a primary or secondary circuit
with a maximum transient rating of 2500 V.
The DC-DC converters are subject to manufacturing
surveillance in accordance with the above mentioned UL,
CSA, EN and with ISO 9001 standards.
Protection Degree
Condition: Female connector fitted to the unit.
IP 40:
All units, except those with option D or V with
potentiometer.
IP 20:
All
units
fitted
with
option
D
or
V
with
potentiometer.
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. Power-One will not honor any
guarantee/warranty claims resulting from electric strength
field tests.
Installation Instructions
The H series DC-DC converters are components, intended
exclusively for inclusion within other equipment by an
industrial assembly operation or by professional installers.
Installation
must
strictly
follow
the
national
safety
regulations in compliance with the enclosure, mounting,
creepage, clearance, casualty, markings, and segregation
requirements of the end-use application. See also:
Technical Information: Installation and Application.
Connection to the system shall be made via the female
connector H11 (see:
Accessories). Other installation
methods may not meet the safety requirements.
All DC-DC converters are provided with pin no. 26 ( ),
which is reliably connected with their case. For safety
reasons it is essential to connect this pin with the protective
earth of the supply system if required in:
Safety of operator
accessible output circuit.
Ensure that a cassette failure (e.g. by an internal short-
circuit) does not result in a hazardous condition. See also:
Safety of operator accessible output circuit.
To prevent excessive current flowing into the cassette (e.g.
by an internal short-circuit), an external fuse suitable for the
application and in compliance with the local requirements
should be installed in the wiring to one or both input pins
(no. 29 and/or no. 32). See also:
Input Fuse.
Important: Whenever the inhibit function is not in use,
pin no. 2 (i) should be connected to pin no. 23 (Vo1–) to
enable the output(s).
Do not open the modules, or guarantee will be
invalidated.
Make sure that there is sufficient airflow possible for
convection 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 temperature
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.
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