Electrical Installation; Protection Against Electric Shock, Indirect Contact; Cable Requirements; Mains Supply - Grundfos TPE 1000 Series Installation And Operating Instructions Manual

7. Electrical installation

DANGER
Electric shock
Death or serious personal injury
‐
Switch off the power supply to the
motor and to the signal relays. Wait at
least 5 minutes before you make any
connections in the terminal box. Make
sure that the power supply cannot be
accidentally switched on.
DANGER
Electric shock
Death or serious personal injury
‐
Check that the supply voltage and
frequency correspond to the values
stated on the nameplate.
‐
If the power supply cable is damaged,
it must be replaced by the
manufacturer, the manufacturer's
service partner or a similarly qualified
person.
The user or the installer is responsible for the
installation of correct earthing and protection
according to local regulations. All operations must be
carried out by a qualified electrician.
Carry out the electrical connection according to local
regulations.
Check that the supply voltage and frequency
correspond to the values stated on the nameplate.
7.1 Protection against electric shock,
indirect contact
WARNING
Electric shock
Death or serious personal injury
‐
Connect the motor to protective earth
and provide protection against indirect
contact in accordance with local
regulations.
Protective-earth conductors must always have a
yellow and green, PE, or yellow, green and blue,
PEN, colour marking.
7.1.1 Protection against mains voltage transients
The motor is protected against mains voltage
transients in accordance with EN 61800-3.
7.1.2 Motor protection
The motor requires no external motor protection. The
motor incorporates thermal protection against slow
overloading and blocking.
10

7.2 Cable requirements

7.2.1 Cable cross-section
DANGER
Electric shock
Death or serious personal injury
‐
Always comply with local regulations
as to cable cross-sections.
1 x 200-230 V
Power
Conductor
type
[kW]
Solid
0.25 - 1.5
Stranded
3 x 380-500 V
Power
Conductor
type
[kW]
Solid
0.25 - 2.2
Stranded
Solid
3.0 - 11
Stranded
3 x 200-240 V
Power
Conductor
type
[kW]
Solid
1.1 - 1.5
Stranded
Solid
2.2 - 5.5
Stranded
7.2.2 Conductors
Type
Stranded or solid copper conductors.
Temperature rating
Temperature rating for conductor insulation: 60 °C
(140 °F).
Temperature rating for outer cable sheath: 75 °C
(167 °F).

7.3 Mains supply

DANGER
Electric shock
Death or serious personal injury
‐
Use the recommended fuse size. See
section Supply voltage.
Cross section
2
[AWG]
[mm ]
1.5 - 2.5 16-12
1.5 - 2.5 16-12
Cross section
2
[AWG]
[mm ]
1.5 - 10 16-8
1.5 - 10 16-8
2.5 - 10 14-8
2.5 - 10 14-8
Cross section
2
[AWG]
[mm ]
1.5 - 10 16-8
1.5 - 10 16-8
2.5 - 10 14-8
2.5 - 10 14-8