Electrical Connection; Cable Requirements - Grundfos CMBE 1-44 Installation And Operating Instructions Manual

6. Electrical connection

DANGER
Electric shock
Death or serious personal injury
‐
If national legislation requires a Resid-
ual Current Device (RCD) or equivalent
in the electrical installation, this must
be type B or better, due to the nature of
the constant DC leakage current. The
RCD must be marked with the follow-
ing symbols:
WARNING
Electric shock
Death or serious personal injury
‐
Carry out the electrical connection in
accordance with local regulations.
WARNING
Electric shock
Death or serious personal injury
‐
Check that the power plug delivered
with the product is in compliance with
local regulations.
‐
The protective earth of the power outlet
must be connected to the protective
earth of the product. The plug must
therefore have the same PE connec-
tion system as the power outlet. If not,
use a suitable adapter if allowed by lo-
cal regulations.
WARNING
Electric shock
Death or serious personal injury
‐
A supply disconnecting device made
according to EN 60204-1 5.3.2 must be
provided with means permitting it to be
locked in the OFF (isolated) position.
This device must also be installed in a
position according to EN 60204-1,
5.3.4.
WARNING
Electric shock
Death or serious personal injury
‐
Power cables without a plug must be
connected to a supply disconnecting
device incorporated in the fixed wiring
according to local regulations.
Check that the supply voltage and frequency
correspond to the values stated on the nameplate.

6.1 Cable requirements

WARNING
Electric shock
Death or serious personal injury
‐
Comply with local regulations as to ca-
ble cross-sections.
See section Cable requirements for more information
on cable cross-sections and conductor types.
Related information
13.4 Cable requirements
6.1.1 Motor protection
The pump requires no external motor protection. The
motor incorporates thermal protection against slow
overloading and blocking, TP 211 according to IEC
34-11.
6.1.2 Protection against mains voltage transients
The pump is protected against voltage transients by
built-in varistors between the phases and between
phases and earth.
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