LOK4000 Datasheet, PDF (9/12 Pages) Power-One – 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
1
2
3
4
5
6
7
8
Electrical
Input
Protective earth
Input
D/Output (positive)
Output (positive)
Output (negative)
Output (negative)
R input or open
LOK/LOR/LOS
L
N
D/+
+
–
–
R / n.c.
Standards and Approvals
The converters correspond to class I equipment. All models
are UL recognized according to UL 1950, UL recognized for
Canada to CAN/CSA C22.2 No. 950-95 and TÜV, approved to
IEC/EN 60950 standards.
LOR and LOS are UL 508-listed components.
The converters have been evaluated for:
• Building in
• Double or reinforced insulation or an earthed part between
input and output.
• Basic insulation between input and earth
• Functional insulation between output and earth
• The use in a 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 pins (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.
Isolation
The electric strength test is performed in the factory as routine
test in accordance with EN 50116 and IEC/EN 60950and
should not be repeated in the field. Power-One will not honor
any guarantee/warranty claims resulting from electric strength
field tests.
Caution: Testing by applying AC voltages will result in high and
dangerous leakage currents flowing through the Y-capacitors
(see fig. Block diagram).
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 only subassemblies are pre-tested with 4.3 kVDC or 3.0 kVAC.}
Unit
kVDC
kVAC
MΩ
SEP 09, 2005 revised to JUL 17, 2006
Page 9 of 12
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