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W Series Data Sheet
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125, 250 Watt AC-DC and DC-DC DIN-Rail Converters
Safety and Installation Instructions
Terminal Allocation
The terminal allocation tables define the electrical potential
of the converters.
10066
Installation Instructions
The converters of the W Series are components, intended
exclusively for inclusion within other equipment 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.
1
2
3
DIN-rail mounting is possible with the built-in snap-fit device
on a DIN-rail. This fulfills the mechanical transport requirements
as per ETSI 300019-1-2, class 2 (vertical).
Fig. 17a
View of the input terminals (cage clamp style)
10067
1 2 3 4 5 6 7 8 9 10 11
Fig. 17b
View of the output terminals (cage clamp style)
Table 13a: Input terminals of LW models
Pin no. Pin designation Electrical determination
To fulfill the requirements of IEC 721-3-2, class 2.1 (vertical), 2
additional fixing brackets DMB-EWG [HZZ00624] (see
Accessories) must be fitted on the bottom side of the DIN-rail.
For heavy duty railway applications, we recommend installing
all 4 fixing brackets DMB-EWG.
Chassis or wall mounting is possible using the universal
chassis-mounting brackets UMB-W [HZZ00618] (see
Accessories ) . Such installation complies with IEC 721-3-2,
class 2.2 (vertical and horizontal).
Caution : Install the converters vertically, and make sure that
there is sufficient airflow available for convection cooling. The
minimum space to the next device should be: top/bottom: 30 mm,
left/right: 20 mm.
1
2
3
N
L
Protective earth PE
Input neutral, DC negative
Input phase, DC positive
The converters of the W Series are class I equipment: Input
terminal 1 ( ) and the output terminals 1 and 11 ( ) are
reliably connected to the case. For safety reasons it is
Table 13b: Input terminals of EW models
10073
Pin no.
1
2
3
Pin designation
Vi–
Vi+
Electrical determination
Protective earth PE
Input negative
Input positive
Table 13c: Terminal allocation output side
Fig. 18a
Pin no.
1
Pin des. Single output
Functional
earth to load
Double output
Functional
earth to load
Snap-fit mounting to DIN-Rail.
2
3
4
5
6
+
+
–
–
+
Output positive
Output positive
Output negative
Output negative
Output positive
Output 1 positive
Output 1 positive
Output 1 negative
Output 1 negative
Output 2 positive
7
8
9
10
11
+
–
–
AUX
Output positive
Output negative
Output negative
Option
Functional
earth to load
Output 2 positive
Output 2 negative
Output 2 negative
Option
Functional
earth to load
Fig. 18b
Dismounting from DIN-rail. Use proper tool (min. 3 mm
screwdriver) and adequate force.
essential to connect the input terminal 1 ( ) to the protective
earth of the supply system. Output terminals 1 and 11 can be
used to connect the output voltage(s) or the load to functional
earth.
BCD20020-G Rev AC, 31-Jan-2013
Page 18 of 25
www.power-one.com
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