Electromagnetic Compatibility (EMC)
Cable type
Outer cable
diameter
[mm]
Minimum
bending
radius
[mm
2
]
min. max. [mm]
3 x 6 + 4 x 2.5 +
5 x 0.5
26.3 28.3 90
3 x 10 + 4 x 2.5
+ 5 x 0.5
26.3 28.3 120
3 x 16 + 4 x 4 +
5 x 0.5
26.3 28.3 140
The minimum size of the ground conductor
must be equal to or bigger than the phase
conductor.
The top cover of the explosion-proof
pumps is provided with an external ground
terminal to ensure the connection to the
ground. The electrical installation must
include an external connection from this
terminal to the ground. The ground
conductor must comply with all electrical
safety regulations in force.
Before installation and the first startup of
the pump, check the condition of the cable
to avoid short circuits.
5.3 Sensors
The pumps can be equipped with various switches
and sensors for protection. The specification table
below indicates which switch and sensor types can
be used.
For the wiring diagrams of the various witch and
sensor types, see section Appendix.
Switch and sensor specification
Standard pump
Sensor version 1
Sensor version 2
Standard Ex
Sensor, version 1 Ex
Sensor, version 2 Ex
Thermal switches or PTC
● ● ● ● ● ●
Moisture switch ● ● ● ● ● ●
Leakage switch in leakage
chamber for standard motors
● ● ●
Leakage switch in stator
housing, for Ex motors
● ● ●
Pt1000 in stator winding ● ● ● ●
Pt1000 in upper bearing ● ●
Pt1000 in lower bearing ● ●
PVS3 vibration sensor ● ●
SM 113 module
1
●
1
●
1
IO 113 module
2
●
2
●
2
1
For pumps fitted with two power supply cables, the
SM 113 module must be ordered separately and
installed in the control cabinet. SM113 needs to be
fitted with a resistor.
2
The IO 113 with communication functionality has to
be chosen and ordered separately.
21
English (GB)
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