IMX35 Series: 35W DC-DC Converters
9-36V, 18-75V, 40-121V & 60-150V Inputs
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Product Specifications
Aug 2002
Safety and Installation Instructions
Table 18: Pin allocation
Installation Instructions
Pin No.
Triple
output
Quadruple
output
Installation of the DC-DC converters must strictly follow the
national safety regulations in compliance with the enclo-
sure, mounting, creepage, clearance, casualty, markings
and segregation requirements of the end-use application.
1
2
PUL
Vi–
PUL
Vi–
3
n.c.
n.c.
Connection to the system shall be made via a printed cir-
cuit board with hole diameters of 1.5 mm for the pins.
4
Vi+
Vi+
The units should be connected to a secondary circuit.
5
n.c.
Trim or Trim1
W
Check for hazardous voltages before altering any connec-
tions.
6
W
7
Ref
Ref
Do not open the module.
8
SD or i
Vo3–
Vo3+
Vo2+
Vo2–
Vo1–
n.c.
SD or i
Vo3–
Vo3+
Vo2+
Vo2–
Vo1–
Vo1+
Vo4+
Vo4–
n.c.
Ensure that a unit failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also: Safety
of operator accessible output circuit.
11
12
13
14
15
16
17
18
19
Input Fuse
To prevent excessive current flowing through the input sup-
ply line in case of a short-circuit across the converter input
an external fuse should be installed in a non earthed input
supply line. We recommend a fast acting fuse F8.0A for
20 IMX 35 types, F4.0 A for 40 IMX 35 types, F2.0 A for
70 IMX 35 types and F2.0 A for 110 IMX 35 types.
Vo1+
Trim1
n.c.
Standards and approvals
09122
All DC-DC converters are pending to be UL recognized ac-
cording to UL 1950, UL recognized for Canada to CAN/
CSA C22.2 No. 950-95 and LGA approved to IEC/EN
60950 standards.
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
Bottom
view
The units have been evaluated for:
• Building in
• Basic insulation input to output, based on their maximum
input voltage
• The use in a pollution degree 2 environment
• Connecting the input to a secondary circuit which is sub-
ject to a maximum transient rating of 1500 V
Fig. 21
Pin allocation
After approvals the DC-DC converters are subject to manu-
facturing surveillance in accordance with the above men-
tioned UL, CSA, EN and with ISO 9001 standards.
Protection Degree
The protection degree of the DC-DC converters is IP 30
(not for option Z).
Isolation
The electric strength test is performed as factory test in ac-
cordance with IEC/EN 60950 and UL 1950 and should not
be repeated in the field. Power-One will not honour any
guarantee claims resulting from electric strength field tests.
Cleaning Agents
In order to avoid possible damage, any penetration of
cleaning fluids should be prevented, since the power sup-
plies are not hermetically sealed.
Table 17: Electric strength test voltages
However, open cased units (option Z) which leave the fac-
tory unlacquered may be cleaned and lacquered by the
customer.
Characteristic
Input to output
IMX 35
Output to
output
Unit
Electric strength
test voltage 1 s
1.2
1.5
kVrms
kV DC
MΩ
0.2
-
Insulation resistance
at 500 V DC
>100
Partial discharge
extinction voltage
Consult factory
-
kV
AUG 13, 2002
Rev 1.0
www.power-one.com
Page 14 of 15