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参数资料
| 型号： | DK2660-9RD7 |
| 元件分类： | 电源模块 |
| 英文描述： | 2-OUTPUT 150 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | HEAT SINK, METAL, CASE K02, MODULE |
| 文件页数： | 17/31页 |
| 文件大小： | 637K |
| 代理商： | DK2660-9RD7 |
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Cassette Style
150 Watt DC-DC Converters
K Series
Edition 01/01.2000
24/31
Table 14: Safety concept leading to an SELV output circuit
Conditions
Front end
DC-DC converter
Result
Nominal
Minimum required grade
Nominal DC
Minimum required
Types
Measures to achieve the
Safety status
supply
of isolation, to be provided output voltage
safety status of the
specified safety status of
of the DC-DC
voltage
by the AC-DC front end,
from the front end
front end output
the output circuit
converter
including mains supplied
circuit
output circuit
battery charger
Mains
Operational (i.e. there is
≤100 V (The
Primary circuit
AK
Double or reinforced
SELV circuit
≤150 V AC no need for electrical
nominal voltage
BK
insulation, based on
isolation between the
between any input
the mains voltage and 2
mains supply voltage
pin and earth can
(provided by the DC-DC
and the DC-DC converter
be up to 150 V AC
converter) and earthed
input voltage)
or DC)
case 3
Mains
≤400 V (The
CK
≤250 V AC
nominal voltage
DK
between any input
EK
pin and earth can
FK
be up to 250 V AC
or 400 V DC)
Basic
≤400 V
Unearthed
AK
Supplementary insulation,
hazardous voltage
BK
based on 250 V AC and
secodary circuit
CK
double or reinforced
DK
insulation 2 (provided by
EK
DC-DC converter) and
FK
earthed case 3.
Earthed
Double or reinforced
hazardous voltage
insulation 2 (provided by
secondary circuit
the DC-DC converter)
earthed case 3
Double or reinforced
≤60 V
SELV circuit
Operational insulation
(provided by the DC-DC
converter) 4
≤120 V
TNV-3 circuit
Basic insulation (provided
by the DC-DC converter) 4
1 The front end output voltage should match the specified input voltage range of the DC-DC converter.
2 Based on the maximum nominal output voltage from the front end.
3 The earth connection has to be provided by the installer according to the relevant safety standard, e.g. IEC/EN 60950.
4 Earthing of the case is recommended, but not mandatory.
Fig. 24
Schematic safety concept.
Use earth connection as per table:
Safety concept leading
to an SELV output circuit. Use fuse if required by the appli-
cation. See also:
Installation Instructions.
AC-DC
front
end
DC-DC
con-
verter
Mains
Battery
SELV
Earth connection
+
–
~
10044
Max. 150 V AC or DC for AK, BK
Max. 250 V AC or 400 V DC for CK, DK, EK, FK
Fuse
Max. 150 V AC or DC for AK, BK
Max. 250 V AC or 400 V DC for CK, DK, EK, FK
Safety of operator accessible output circuit
If the output circuit of a DC-DC converter is operator acces-
sible, it shall be an SELV circuit according to the IEC/EN
60950 related safety standards.
The following table shows some possible installation con-
figurations, compliance with which causes the output circuit
of the DC-DC converter to be an SELV circuit according to
IEC/EN 60950 up to a configured output voltage (sum of
nominal voltages if in series or +/– configuration) of 35 V.
However, it is the sole responsibility of the installer to as-
sure the compliance with the relevant and applicable safety
regulations. More information is given in:
Technical Infor-
mation: Safety.
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