Northern Connectors Harting Har-flex PCB Connectors - Manual (Page 5)

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-flex
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Technical characteristics
Working voltage acc. to IEC 60 664-1
The working voltage depends on user specific operational
conditions. Depending on the installation category, the degree
of pollution and the entire electrical environment, the working
voltage is different. The standard IEC 60 664-1 specifies, in
general, the minimum insulation distances for equipment. But it
can also be used to determine the maximum working voltage with
given requirements.
The following table shows the most common conditions applicable
for the
har-flex ® connectors and exemplary calculations for the
working voltage. For installation category, degree of pollution and
other requirements which are not shown in the table we refer to
the IEC 60 664-1.
Clearance / Creepage
distance
0.4 mm
CTI-Value < 400
Isolation group III a/b
Electrical field type
Case A
(Inhomogeneous field)
Case B
(Homogeneous field)
Installation category I II I II
Degree of pollution 1 1 1 1
Working voltage max. 150 V 100 V 150 V 150 V
Explanations:
– CTI value and isolation group are fixed values by the
har-flex ®
connector characteristics.
– Installation category I: Equipment is intended for use only in
appliances or installation parts, in which no overvoltages
can occur. Equipment in this installation category in normally
operated at extra low voltage.
– Installation category II: Equipment is intended for use in
installations or parts of installations, in which lightning
overvoltages need not be considered. Overvoltages caused by
switching must be taken into account.
– Pollution degree 1: No pollution or only dry, non-conductive
pollution occurs. The pollution has no influence.
– Pollution degree 2: Only non-conductive pollution occurs.
A temporary conductive caused by condensation must be
expected occasionally.
Part number definition
The
har-flex ® part numbers have 14 digits and are based on the following scheme:
15
har-flex ® family
Connector style
11 straight male connector
1.75 mm stacking height
12 straight male connector
3.25 mm stacking height
15 angled male connector
21 straight female connector
6.25 mm stacking height
22 straight female connector
9.05 mm stacking height
25 angled female connector
Number of contacts
Durability
2 performance
level 1
5 performance
level S4
6 performance
level 2
Termination
6 SMT termination
Counting number
Packaging
000 Tape and reel packaging
333 Samples