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參數資料
| 型號： | 12IMR40-0505-2 |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 37.5 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數： | 8/9頁 |
| 文件大小： | 207K |
| 代理商： | 12IMR40-0505-2 |
Board Mountable
DC-DC Converters
IMR 40 Series
Edition 5/5.2000
8/9
Table 8: Isolation
Characteristic
Input to output
Unit
Electric strength
1.1
kVrms
test voltage 1 s
1.5
kV DC
Coupling capacitance
≈450
pF
Insulation resistance
>1000
M
at 500 V DC
Standards and approvals
The units have been evaluated for:
Building in
Operational insulation input to output
The use in a pollution degree 2 environment
Connecting the input to a secondary circuit which is sub-
ject to a maximum transient rating of 1500 V.
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.
Safety and Installation Instructions
Installation Instruction
Installation of the DC-DC converters must strictly follow the
national safety regulations in compliance with the enclo-
sure, mounting, creepage, clearance, casualty, markings
and segregation requirements of the end-use application.
Connection to the system shall be made via a printed circuit
board according to:
Mechanical Data.
The units should be connected to a secondary circuit.
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.
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.
Protection Degree
The protection degree of the DC-DC converters is IP 40.
Table 7: Pin allocation
Pin
Single output
Dual output
Triple output
1
Vi+
2Vi–
Vi–
3
Vo+
Vo1+
4
Vo+
COM
5Vo–
COM
Vo2+
6Vo–
COM
7
n.c.
Vo–
Vo3–
Input Fuse
To prevent excessive current flowing through the input sup-
ply line in case of a short-circuit across the converter input
an external fuse should be installed in a non earthed input
supply line. We recommend a fast acting fuse F12.5A for
12 IMR 40 types, F6.3A for 24 IMR 40 and F3A for 48 IMR
40 types.
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