en
– Original instructions
25
5.3 Wire type and ratings
All wiring must comply with local and national regulations regarding cross section and ambient
temperature requirements.
Use cables with a minimum heat resistance of +70 °C (158 °F); to obey the UL (Underwriters
Laboratories) regulations, it is recommended that all power connections be made with a
minimum 75°C rated copper wire of the following types: THW, THWN.
The cables never have to touch the motor housing or the pump or the pipeline.
Wires connected to supply terminals and fault signal relay (NO,C) must be separated from
others by reinforced insulation.
Table 7: Recommended power connections cables
e-SM Drive models
Power supply input cable + PE
Tightening torque
Wire numbers
x Max. copper
section
Wire numbers
x Max. AWG
Mains and motor
cable terminals
Earth Conductor
103, 105, 107, 111,
115
3 x 1.5 mm
2
3 x 0.0023 sq.in
3 x 15 AWG
Spring connectors
Spring connectors
303, 305, 307, 311,
315, 322
4 x 1.5 mm
2
4 x 0.0023 sq.in
4 x 15 AWG
0.8 Nm
7.1 lb-in
3 Nm
26.6 lb-in
Control cables
External volt free contacts must be suitable for switching < 10 VDC.
NOTICE:
Control cables must be installed separate both from power supply cable and fault signal relay
cable. If control cables are installed in parallel to power supply cable or fault signal relay cable for
a longer distance, the distance between these cable should be more than 200 mm. Do not cross
power cables. If this is not possible, cross them only in a an angle of 90°.
Table 8: Recommended control cables
e-SM Drive control cables
Wires number
x Max. copper Section
AWG
Tightening torque
All I/O conductors
0.75÷1.5 mm
2
0.00012÷0.0023 sq.in
18÷16 AWG
0.6 Nm
5.4 lb-in
Summary of Contents for LOWARA e-SVE
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