Grundfos LCSE Installation And Operating Instructions Manual page 7

4.2.2 Cable requirements
Cable cross-section
DANGER
Electric shock
Death or serious personal injury
- Always comply with local regulations as to cable
cross-sections.
Single-phase supply
Conductor
Conductor type
material
Solid
Copper
Stranded
Three-phase supply
Conductor
Conductor type
material
Solid
Copper
Stranded
Conductors
Type
Stranded or solid copper conductors.
Temperature rating
Temperature rating for conductor insulation: 140 °F (60 °C).
Temperature rating for outer cable sheath: 167 °F (75 °C).
4.2.3 Power supply
DANGER
Electric shock
- Death or serious personal injury
- Use the recommended fuse size. See section
10.3.1 Supply voltage.
Single-phase supply voltage
• 1 x 200-240 V - 10 %/+ 10 %, 50/60 Hz, PE.
Check that the supply voltage and frequency correspond to the
values stated on the nameplate.
The wires in the motor terminal box must be as short as possible.
Excepted from this is the separated ground conductor which must
Cross section
be so long that it is the last one to be disconnected in case the
cable is inadvertently pulled out of the cable entry.
2
[mm ] [AWG]
For maximum backup fuse, see section
0.5 - 2.5 28-12
0.5 - 2.5 30-12
Cross section
2
[mm ] [AWG]
Fig. 4
0.5 - 10 18-8
0.5 - 10 18-8
Fig. 5
If you want to supply the motor through an IT
network, make sure that you have a suitable motor
variant. If you are in doubt, contact Grundfos.
10.3.1 Supply
RCD, type B
Example of a power supply-connected motor with
power supply switch, backup fuse and additional
protection
Power supply connection, single-phase motors
voltage.
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