Datasheet

606 PHOENIX CONTACT
The mechanical stability of the terminal
point is checked in a practical test. For this
purpose, the terminal points of the terminal
blocks must be repeatedly connected
without loss of quality. Solid conductors
with the rated cross section are therefore
used to connect and disconnect the
terminal block five times over with the
torque specified in the manufacturer's
information. This is done on the middle
terminal block of a block of five. Before and
after the test, a voltage-drop test must be
passed. The terminal point must withstand
reconnection without recognizable damage,
and the voltage drop must not exceed
3.2 mV or 1.5 times the initially measured
value before or after the test. Terminal
blocks from Phoenix Contact are suitable
for repeated connection without any
recognizable loss of quality. The extent of
possible connections and disconnections
can reach up to 5000 cycles, depending on
the connection technology.
IEC 60947-7-1/-2
Mechanical strength
Correctly wired terminal blocks must
offer a high degree of mechanical safety.
This includes the reliable clamping of the
conductor. Therefore, tests are performed
with solid and stranded wires with the
minimum cross section, with the rated
cross section, and with the maximum cross
section. A vertically fixed terminal block is
connected to a conductor. At the end of the
conductor, a test weight corresponding to
the cross section is attached. The
conductor is fed through a central 37.5 mm
aperture in a rotating disc and turned about
its own axis 135 times. This procedure must
not damage the clamping area on the
conductor. Afterwards, the contact must
pass a conductor pull-out test. Terminal
blocks from Phoenix Contact are designed
to ensure that the conductor makes contact
in the clamping area gently. This prevents
damage to the conductor and contact point,
which still have the same properties even
after repeated clamping.
IEC 60947-7-1/-2
Feed-through
hole
Plate
37.5
H
Bending test - flexion test
Cross
section
Spacing H Load
[mm
2
] AWG [mm] [kg]
0.2 24 260 0.3
to to to to
4 12 280 0.9
to to to to
240 500 kcmil 464 20.0
Test equipment according to the standard
Technical information
Quality tests