IMX7/IMS7 DC-DC Series Data Sheet
7-Watt DC-DC Converters
®
Installation Instruction
Cleaning Agents
Installation of the converters 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.
In order to avoid possible damage, any penetration of
cleaning fluids should be prevented, since the converters are
not hermetically sealed.
However, open-frame models (option Z) leave the factory
unlacquered; they may be lacquered by the customer, for
instance together with the mother board. Cleaning agents are
not permitted. If necessary, the mother board must be cleaned
before populating the open-frame converter.
Connection to the system shall be made via a printed circuit
board; see Mechanical Data.
The converters should be connected to a secondary circuit.
Do not open the converter.
Isolation
Ensure that a converter failure does not result in a hazardous
conditions.
The electric strength test is performed in the factory as a
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.
To prevent excessive current flowing through the input lines in
case of a short-circuit, an external fuse specified in section
Input Fuse and Reverse Polarity Protection should be installed
in the non-earthed input supply line.
Table 12: Electric strength test voltages
Characteristic
Input to output
20/40IMX 70IMX 110IMX
24/48IMS
o/o1
Unit
Standards and Approvals
The converters are approved by UL and TÜV according to UL
60950, CAN/CSA C22.2 No. 950-95, and IEC/EN 60950:2000.
Factory test >1 s
EquivalentDCvolt.
1.2
1.5
1.2
1.5
2.0
1.2
2.0
2.5
1.2
0.1
0.15
-
kVAC
kVDC
nF
The converters have been evaluated for:
• Building in
Coupling
capacitance
• Supplementary insulation input to output, based on their
maximum input voltage
Insulation resist.
at 500 VDC
>100
>100
>100
-
MΩ
• Pollution degree 2 environment
1
Between the outputs of double-output models
• Connecting the input to a secondary circuit, which is
subject to a maximum transient rating of
- 1500 V for 20IMX7, 24IMS7, 40IMX7, 48IMS7
- 2000 V for 70IMX7
Description of Options
- 2500 V for 110IMX7.
Option Z: Open Frame
The converters are subject to manufacturing surveillance in
accordance with the above mentioned standards.
For applications, where the protection by a housing is not
necessary or in the case that the motherboard should be
lacquered after fitting the converter.
Railway Applications
Note: The converters shall not be exposed to cleaning
processes, as this will damage the glue of the ferrite cores.
To comply with railway standards, all components are coated
with a protective lacquer (except option Z).
Option G: RoHS-6
Protection Degree
Converters with a type designation ending by G are RoHS-
compliant for all six substances.
The protection degree of the converters is IP 30, except open-
frame models (option Z).
NUCLEARAND MEDICALAPPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical components
in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the
respective divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
BCD20007-G Rev AD, 4-Nov-09
Page 14 of 15
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