Table of Contents
Advertisement
5.1 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.
5.1.1 Protection against mains voltage transients
The motor is protected against mains voltage transients in
accordance with EN 61800-3.
5.1.2 Motor protection
The motor requires no external motor protection. The motor
incorporates thermal protection against slow overloading and
blocking.
5.2 Cable requirements
5.2.1 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
[hp]
[kW]
Solid
0.33 - 2.0
0.25 - 1.5
Stranded
3 x 200-240 V
Power
Conductor
type
[hp]
[kW]
Solid
1.5 - 2.0
1.1 - 1.5
Stranded
Solid
3.5 - 7.5
2.5 - 5.5
Stranded
3 x 380-500 V
Power
Conductor
type
[hp]
[kW]
Solid
0.33 - 3.0
0.25 - 2.2
Stranded
Solid
4.0 - 14.75
3.0 - 11
Stranded
5.2.2 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).
5.3 Mains supply
5.3.1 Single-phase supply voltage
•
1 x 200-230 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 (earth) conductor
which must be so long that it is the last one to be disconnected in
case the cable is inadvertently pulled out of the cable entry.
For maximum backup fuse, see section
Fig. 4
Cross section
2
[AWG]
[mm
]
16-12
1.5 - 2.5
16-12
1.5 - 2.5
Cross section
2
[AWG]
[mm
]
16-8
1.5 - 10
16-8
1.5 - 10
14-8
2.5 - 10
Fig. 5
14-8
2.5 - 10
Cross section
2
[AWG]
[mm
]
16-8
1.5 - 10
16-8
1.5 - 10
14-8
2.5 - 10
14-8
2.5 - 10
DANGER
Electric shock
Death or serious personal injury
- Use the recommended fuse size. See sections
and
24.1 Supply voltage
25.1 Supply
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.
24.1 Supply
GFCI, type B
Example of a mains-connected motor with mains
switch, backup fuse and additional protection
Mains connection, single-phase motors
voltage.
voltage.
7
Advertisement
Table of Contents
