Datasheet

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Material properties
All metal parts of the push-in terminal
blocks are made from corrosion-free
materials. The conductive metals consist of
high-grade copper alloys. A particular
advantage is the low temperature rise due
to good electrical conductivity. The surface
of the metal parts is protected by lead-free,
galvanic nickel or tin plating.
The contact force for the push-in
connection is applied by a leg spring made of
high-strength chromium-nickel spring steel.
The insulating housing of the terminal
blocks is made from recyclable PA6.6. This
elastic plastic with high impact strength is
halogen-free and UV resistant. Further
characteristics include the good tropical and
termite resistance, high chemical resistance,
and excellent aging characteristics.
Polyamide 6.6 can be used with operating
temperatures up to 130°Cand is certified
for inflammability class V0 according to
UL94.
Connection principle
PT... push-in connection terminal blocks
have been developed for direct conductor
connection. This means that solid
conductors or conductors with ferrules can
be inserted directly into the terminal block
without tools.
The special spring profile enables the easy
insertion of conductors with ferrules from
0.34mm to 95mm. The contact spring is
opened automatically when the conductor
is pushed in and thereby provides the
required pressure force against the current
bar. Both for releasing conductors and
connecting small cross sections from
0.14mm, the spring is opened by means of
the actuation lever – easily and without
direct contact with live parts. The actuation
lever can be operated with all standard
screwdrivers.
The PT... connection technology has been
tested and approved for a wide range of
approvals. These include, for example,
vibration resistance according to railway
standard EN50155 and shock and
corrosion resistance according to current
shipbuilding registers. It is also certified for
process engineering in areas with increased
safety (Ex e).
System features - push-in connection
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