Datasheet

M8 AND M12 CONNECTORS FOR INDUSTRIAL APPLICATIONS | SICK 8018656/2018-02-28
Subject to change without notice
Annex GLOSSARY
Out ... Pol
44
O
Outer jacket
The outer jacket indicates what the outer layer of the cable is
made of.
Insulating sheath
Conductor
(copper wir
es)
Cable
cross-section
in mm
Wires
Cable
sheath
*)
Sheath
*)
Vital for cable material}.
2
Fig.: Outer jacket
Overvoltage category
In various standards the possible overvoltages are divided
into four categories. Three categories are relevant for plug
connectors:
Overvoltage category I
Pieces of equipment, e.g., plug connectors, which are intended
for use in devices or parts of systems where no overvoltage
can occur. This covers mainly devices operated at low voltag-
es.
Overvoltage category II
Pieces of equipment, e.g., plug connectors, which are intended
for use in systems or parts of systems where only switching
surges need to be considered, and not lightning surges. This
category covers e.g., household appliances.
Overvoltage category III
Pieces of equipment, e.g., plug connectors, which are intended
for use in systems or parts of systems where only switching
surges need to be considered, and not lightning surges. In this
category there are also special requirements for safety and
availability of the equipment and the networks depending on
it. It covers equipment for xed installations, e.g., protective
devices, contactors, switches and sockets.
P
Pierce connection
The contact pin pierces the individual core creating an electri-
cal connection. The contact makes the individual cores into a
contact zone.
In type code DOS-0803-GPC the Pierce connection is identi-
ed by the sux “PC”.
Fig.: Pierce connection
Pollution degree
The contamination to be expected in the immediate environ-
ment of a piece of equipment, e.g., a plug connector, is divided
into four degrees in the IEC 60664-1 standard:
Pollution degree 1
There is no contamination or only dry, non-conductive contami-
nation. The contamination has no eect. Examples of equip-
ment with pollution degree 1: The inside of electrical measur-
ing devices or electronic measuring devices.
Pollution degree 2
Normally only non-conductive contamination occurs. However,
occasional, temporary conductivity caused by condensation is
to be expected. Examples of equipment with pollution degree
2: Household appliances, installation material, lights, and
power supply units for oce equipment.
Pollution degree 3
Conductive contamination occurs or dry, non-conductive con-
tamination that becomes conductive because condensation is
to be expected. Examples of equipment with pollution degree
3: Electrical attachments for milling machines and production
machines and low-voltage switchgear for machine tools.
Pollution degree 4
The contamination generates persistent conductivity caused
by conductive dust, rain, or snow.
Examples of equipment with pollution degree 4: Devices on
the roofs and oors of electric locomotives and buses. Devices
in electric underground locomotives.