Install Instructions

7
English (US)
6. Electrical installation
Carry out the electrical connection according to local regulations.
Check that the supply voltage and frequency correspond to the
values stated on the nameplate.
6.1 Protection against electric shock, indirect contact
Protective-earth conductors must always have a yellow/green
(PE) or yellow/green/blue (PEN) color marking.
6.1.1 Protection against mains voltage transients
The motor is protected against mains voltage transients in
accordance with EN 61800-3.
6.1.2 Motor protection
The motor requires no external motor protection. The motor
incorporates thermal protection against slow overloading and
blocking.
6.2 Mains supply
6.2.1 Single-phase supply voltage
• 1 x 115 V - 10 %/+ 10 %, 60 Hz, PE.
• 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.
1 x 200-240 V models
The wires in the motor terminal box must be as short as possible.
Excepted from this is the separated 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.
Fig. 6 Example of a direct-connected motor with disconnect
switch, backup fuse and additional protection
Fig. 7 Mains connection, 1 x 200-240 V models, single-phase
motors
1 x 115 V models
Connect plug and line cord on the pump to 1 x 115 V outlet from
the electricity supply
Fig. 8 Connect 1x 115 V models into 1 x 115 V outlet
Connecting 1 x 115 V models directly into a 1 x 115 V outlet is
recommended.If extension cord is used, do not use wire smaller
than 14 AWG.
Use of metal conduit with metal conduit connectors is
recommended for all electrical connections.
6.2.2 Single-phase motors
If the motor is connected to an electric installation where an earth
leakage circuit breaker (ELCB) or ground fault circuit interrupter
(GFCI) is used as additional protection, this circuit breaker or
interrupter must be marked with the following symbol:
Warning
Do not make any connections in the terminal box
unless the power supply has been switched off
for at least 5 minutes.
Make sure that the power supply cannot be
accidentally switched on.
The motor must be earthed and protected against
indirect contact in accordance with local
regulations.
If the power supply cable is damaged, it must be
replaced by the manufacturer, the manufacturer’s
service partner or a similarly qualified person.
Note
Note
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.
Warning
The motor must be earthed and protected against
indirect contact in accordance with local
regulations.
Note
Note
If the motor is supplied through an IT network, a
dedicated IT network motor should be used.
Contact Grundfos.
TM05 4034 1912
ELCB
(GFCI)
TM05 3494 1512TM06 3507 0115
Note
Note
When an earth leakage circuit breaker or ground
fault circuit interrupter is selected, the total
leakage current of all the electrical equipment in
the installation must be taken into account.
ELCB
(GFCI)