Wire Types And Ratings - Lowara e-SVE Installation, Operation And Maintenance Manual

4.3.2 Wire types and ratings

 All cables must comply with local and national standards in terms of section and ambient
 Use cables with minimum heat resistance +70°C (158°F); to ensure compliance with UL
 Cables must never enter into contact with the motor body, the pump and the piping.
 The wires connected to the power supply terminals and the fault signal relay (NO, C) must be
Table 4: Electric connection cables
e-SM Drive models
103, 105, 107, 111,
303, 305, 307, 311,
Control cables
External volt free contacts must be suitable for switching < 10 VDC.
NOTICE:
 Install the control cables separate from the power supply cables and the fault signal relay
 If the control cables are installed in parallel with the power supply cable or the fault signal
 Do not intersect the power supply cables; should this be necessary, a 90°intersection angle is
Table 5: Recommended control cables
e-SM Drive control cables
temperature
(Underwriters Laboratories) regulations, all power supply connections must be completed
using the following types of copper cables with minimum resistance +75°C: THW, THWN
separated from the others by means of reinforced insulation.
Power supply input cable + PE
Wire numbers
x Max. copper
section
3 x 1.5 mm
115 3 x 0.0023 sq.in
4 x 1.5 mm
315, 322 4 x 0.0023 sq.in
cable
relay, the distance between the cables must exceed 200 mm
permitted.
All I/O conductors
Wire numbers
x Max. AWG
2
3 x 15 AWG
2
4 x 15 AWG
Wires number
x Max. copper Section
2
0.75-1.5 mm
0.00012-0.0023 sq.in
en – Original instructions
Tightening torque
Mains and motor
cable terminals
Spring connectors
0.8 Nm
7.1 lb-in
AWG Tightening torque
18-16 AWG
Earth Conductor
Spring connectors
3 Nm
26.6 lb-in
0.6 Nm
5.4 lb-in
21