Electrical Installation; Assembling The Plug - Grundfos ALPHA2 Series Installation And Operating Instructions Manual

3.5 Electrical installation

WARNING
Electric shock
Death or serious personal injury
- Switch off the power supply before starting any
work on the product. Make sure that the power
supply cannot be accidentally switched on.
WARNING
Electric shock
Death or serious personal injury
- Connect the pump to earth.
WARNING
Electric shock
Death or serious personal injury
- If national legislation requires a Residual Current
Device (RCD) or equivalent in the electrical
installation, or if the pump is connected to an
electric installation where an RCD is used as an
additional protection, this must be type A or better,
due to the nature of the pulsating DC leakage
current. The RCD must be marked with the symbol
shown below;
WARNING
Electric shock
Death or serious personal injury
- All electrical connections must be carried out by a
qualified electrician in accordance with local
regulations.
• The pump requires no external motor protection.
• Check that the supply voltage and frequency correspond to
the values stated on the nameplate. See section
5.4.2 Nameplate.
• Connect the pump to the power supply with the plug supplied
with the pump. See steps 1 to 7.

3.6 Assembling the plug

Step Action
Fit the cable gland
and plug cover to
1 the cable. Strip the
cable conductors
as illustrated.
Connect the cable
2 conductors to the
power supply plug.
6
Illustration
7 mm
12 mm
17 mm
0.5 - 1.5 mm
2
Ø 5.5 - 10 mm
Step Action
Bend the cable
with the cable
3
conductors
pointing upwards.
Pull out the
conductor guide
4
plate and throw it
away.
Click the plug
5 cover onto the
power supply plug.
Screw the cable
6 gland onto the
power supply plug.
Insert the power
supply plug into
7 the male plug in
the pump control
box.
Illustration