LOK4240-2RLDG Datasheet, PDF (9/10 Pages) Power-One – LOS, LOR, LOK4000 Series Data Sheet DIN-Rail Mountable AC-DC (DC-DC) Converters

LOS, LOR, LOK4000 Series Data Sheet
®
DIN-Rail Mountable AC-DC (DC-DC) Converters
Safety and Installation Instructions
Terminal Allocation
The terminal allocation table defines the electrical potentials of
the AC-DC converters. For mechanical positions of the
terminals see Mechanical Data.
Table 9: Terminal allocation
Terminal Electrical
1
Input (fused)
2
Protective earth
3
Input
4
D/Output (positive)
5
Output (positive)
6
Output (negative)
7
Output (negative)
8
R input or open
LOK/LOR/LOS
L
N
D/+
+
–
–
R / n.c.
Standards and Approvals
All models are safety-approved according to the standards
IEC/EN 60950-1 and UL/CSA 60950-1 2^nd Edition.
All models are UL 508-listed to UL 508.
These converters have been evaluated for:
• Class I equipment.
• Building in with vertical mounting on a DIN-rail.
• Double or reinforced insulation or an earthed part between
input and output.
• Basic insulation between input and earth
• Functional insulation between output and earth
• Pollution degree 2 environment
• Connecting the input to a primary circuit with overvoltage
category II.
The converters are subject to manufacturing surveillance in
accordance with the above mentioned standards.
For details see the Declaration of Conformity (last 2 pages).
Protection Degree
IP 20: All models.
Installation Instructions
These 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.
Connection to the system shall be according to Terminal
allocation and Mechanical Data. Check for hazardous voltages
before altering any connection.
Ensure that a converter failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also Safety of
operator accessible output circuit.
The phase input (L ) is internally fused by a 1.6 A slowblow
type. It is not customer-accessible. This fuse is designed to
protect the unit in case of overcurrent. Option F or external
fuses in the wiring to one or both input lines (L and/or N )
may therefore be necessary to ensure compliance with local
requirements.
A second fuse in the wiring to the terminal N 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 termials (L to phase and
N to neutral).
Note: Do not open the converters, or guarantee will be
invalidated.
Make sure that there is sufficient air flow available 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 T_{C max} shall not be exceeded.
Note: The converters are designed for vertical mounting on a
DIN-rail. If a converter is operated as well in a horizontal
position, the measuring point T_C should be located on the top.
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.
Table 10: Isolation
Characteristic
Input to
protective earth
Input to
output
Output to
protective earth
Electric
Actual factory test ≥ 1 s
2.1
2.1 ¹
1.4
strength
AC test voltage equivalent
test voltage to actual factory test
1.5
1.5 ¹
1.0
Insulation resistance at 500 VDC
>300
>300
>100
1 _{In accordance with EN 50116 and IEC/EN 60950, subassemblies are pre-tested with 4.3 kVDC or 3.0 kVAC.}
Unit
kVDC
kVAC
MΩ
BCD20035-G Rev AB, 23-Jun-2011
Page 9 of 10
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