Datasheet

Material properties
All metal parts of the spring-cage 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 spring-cage
connection is applied by a spring element
made from high-strength chromium-nickel
spring steel.
The insulating housing of the spring-cage
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
ST... spring-cage terminal blocks have
been developed for universal spring-loaded
conductor contacting.
The contact force is independent of the
user and creates a vibration-proof, gas-tight
connection with long-term stability.
The terminal point is opened with a
standard screwdriver. After the conductor
has been inserted into the clamping space,
the screwdriver is removed and the
conductor automatically makes contact.
The easy operation is a result of the front
connection, i.e., the conductor and
screwdriver come in parallel from the same
direction.
All kinds of copper conductors up to
35mm can be clamped without any
pretreatment. Splicing protection can also
be implemented in the form of ferrules.
Phoenix Contact spring-cage terminal
blocks offer a large insertion space, i.e.,
conductors with ferrules and insulating
collars and with a nominal cross section can
also be wired.
System features - spring-cage connection
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