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X Series Data Sheet
?
375, 500 Watt AC-DC and DC-DC DIN-Rail Converters
Protection Degree and Cleaning Agents
10074
1
3
2
Fig. 16
Cage clamp terminals. Use 0.5 to 2.5 mm 2 (AWG 20 to 12)
solid or stranded wires depending on local requirements.
The phase input (L) is internally fused; see Input Fuse and
Protection . This fuse is designed to break an overcurrent in
case of a malfunction of the converter and is not customer-
accessible.
External fuses in the wiring to one or both input lines (L and/or
N ) may be necessary to ensure compliance with local
requirements. A built-in second fuse in the neutral path is
available as option F.
A second fuse in the wiring to the neutral terminal N or option F
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
The protection degree of the converters is IP 20. Protective
covers over input and output terminals are available on
request; see Accessories .
Any penetration of liquid or foreign solid objects has to be
prevented, since the converters are not hermetically sealed.
Standards and Approvals
The X Series converters were approved according to IEC/
EN 50178, IEC 61010-1, IEC60950-1, UL/CSA 60950-1 2 nd Ed.
The converters have been designed in accordance with said
standards for:
? Class I equipment
? Power-supply for building-in, vertical mounting on 35 mm
DIN-rail or on a wall
? Overvoltage category II (III for 110 VAC supply)
? Basic insulation between input and case, based on
250 VAC
? Double or reinforced insulation between input and output,
based on 250 VAC and 350 VDC
? Functional insulation between outputs and case
? Functional insulation between outputs
? Pollution degree 3 environment (AC-input) and degree 2
(DC input).
CB Scheme is available (SE-34628).
The converters are subject to manufacturing surveillance in
accordance with the above mentioned UL standards and with
ISO9001:2000.
See also the Declaration of Conformity (last page).
Railway Applications
N
to neutral).
All X Series converters have been designed by observing the
Models with option F: Caution! Double-pole/neutral fusing.
If the converter operates at source voltages above 250 VDC,
an external DC fuse or a circuit breaker at system level should
be installed in the phase input line L .
Caution:
? Installation must strictly follow the national safety regulations.
? Do not open this apparatus!
Table 14: Isolation
railway standards EN 50155 and EN 50121. All boards are
coated with a protective lacquer.
Isolation
The electric strength test is performed in the factory as routine
test in accordance with EN 50116 and IEC/EN 60950, and
should not be repeated in the field. Power-One will not honor
any warranty claims resulting from electric strength field tests.
Characteristic
Input to case
and output(s)
Output(s) to
case
Output 1 to
output 2 and AUX
Unit
Electric
strength
test
Factory test 3 1 s
AC test voltage equivalent
to factory test
2.8 1
2.0
1.4
1.0
0.5
0.35
kVDC
kVAC
Insulation resistance
>300 2
>300 2
>100
MW
1
2
In accordance with EN 50116 and IEC/EN 60950-1, subassemblies are pretested with 4.2 kVDC.
Tested at 500 VDC.
BCD20021-G Rev AC1, 13-May-2013
Page 16 of 21
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