16 17
1 3
4 2
6” - 50Nm
8” - 150Nm
45°
!
9
If there is a risk of sediment build-up, suc h as sand,
around the motor, a f low sleeve sho uld be used i n
order to ensure pro per cooling o f the motor.
* At an ambient pre ssure of mini mum 1 bar (1 MPa)
5. Electrical conn ection
5.1 General
The electrical connection sh ould be carried out by an
authorised electrici an in accorda nce with loca l
regulations.
The supply volta ge, rated m aximum cur rent and
cos appear from the l oose data pl ate that must be
fitted close to the installation site.
The required volta ge quality for Grund fos MS and
MMS submersible mot ors, measured at the motor
terminals, is – 10 %/+ 6 % of t he nominal vo ltage
during continuous op eration (incl uding variatio n in
the su
pply voltage and los ses in cables ).
Furthermore, it must be chec ked that there is vol tage
symmetry in the ele ctricity sup ply lines, i .e. same
difference of vo ltage betw een the individua l phases.
See also 9. Checkin g of motor an d cable, poi nt 2.
If MS motors with a b uilt-in temper ature transmitter
(Tempcon) are not insta lled t ogether with a n MP 2 04
or similar Grundfos motor protect ion, they mus t be
connected to a 0.47 µF capacitor ap proved for
phase-phase operati on (IEC 384-1 4) to meet t he
ECEMC directive (2 004/108/EC). The capacito r
must be connected t o the two pha ses to which the
temperature transmi tter is conn ected. See fi g. 4.
Fig. 4 Connection of capac itor
The
motors are wound for direct-o n-line starting or
star-delta startin g and the st arting c urrent is betw een
4 and 6 times the ra ted current of the motor.
The run-up time of the motor is only about
0.1se cond. Direct- on-line starti ng is there fore
normally approved b y the electri city supply
authorities.
5.1.1 Frequency conv erter operati on
Three-phase MS motors can be connect ed to a
frequency converter.
If a temperature tr ansmitter is required, a Pt100
sensor for fitting t o the submer sible motor ca n be
ordered from Grundf os.
Note
In cases where t he stated liqui d
velocity cannot be a chieved, a fl ow
sleeve must be inst alled.
Motor
Installation
Flow
past the
motor
Vertical Horizontal
MS 402
MS 4000
MS 6000
0.15 m/s
40 °C
(~ 105 °F)
40 °C
(~ 105 °F)
MS 4000I*
MS 6000I*
0.15 m/s
60 °C
(~ 140 °F)
Flow sleeve
recommended
60 °C
(~ 140 °F)
Flow sleeve
recommended
MS6T30 0.15 m/s
30 °C
(~ 86 °F)
30 °C
(~ 86 °F)
MS6T60 1.0 m/ s
60 °C
(~ 140 °F)
60 °C
(~ 140 °F)
MMS
0.15 m/s
25 °C
(~ 77 °F)
25 °C
(~ 77 °F)
0.50 m/s
30 °C
(~ 86 °F)
30 °C
(~ 86 °F)
Note
For 37 kW MMS 6000, 110 kW MMS 800 0
and 170 kW MMS 1000 0, the maximu m
liquid temperature is 5 °C low er than
the values stated i n the above t able.
For 190 kW MMS 1000 0, the
temperature is 10 ° C lower.
Warning
Before starting work on the motor,
make sure that the electricity s upply
has been switched off and that it canno t
be accidentally switched on.
Warning
The motor must be earthed.
The motor must be connected to an
external mains swit ch with a mi nimum
contact gap of 3 mm in all poles .
TM00 7100 0696
Caution
If an MS motor wi th temperat ure
transmitter is connect ed to a frequency
converter, a fuse inco rporated in t he
transmitter will melt and th e transmitter
will be inactive. Th e transmitter cannot
be reactivated. This means that t he
motor will operate l ike a motor w ithout
a temperature trans mitter.
1
2
3
4
1 = L1: brown
2 = L2: black
3 = L3: grey
4 = PE: yellow/gree n
0.47 F
8
4.1.2 Grundfos MS6 and MS 6000 submersible
motors
• If the motor is delivered fr om stock, the liquid
level must be check ed before th e motor is
installed. See fig. 2.
• In the case of s ervice, th e liquid lev el must be
checked. See fig. 2.
Filling procedure:
The filling hole for mo tor liquid is p laced at the top of
the motor.
1. Posi tion the subm ersible m otor as shown i n fig . 2.
The filling scr ew must be at the highes t point of
the motor.
2. Remo ve the screw f rom the filli ng hole.
3. Inje ct liquid int o the motor wi th the fillin g syringe,
fig. 2, until the l iquid runs b ack out of the filling
hole.
4. Repl ace the screw in the fillin g hole and ti ghten
securely before cha nging the pos i
tion of the
motor.
Torque: 3.0 Nm.
The submersible mot or is now rea dy for installa tion.
Fig. 2 Motor position du ring filling – MS6 and
MS 6000
4.1.3 Grundfos MMS 6000, MM S 8000, MMS 10000
and MMS 12000 subme rsible motors
Filling procedure:
Place the motor at a 45 ° angle with the top o f the
motor upwards. See fig. 3.
5. Unsc rew the plug ( A) and place a funnel in t he
hole.
6. Pour tap water into the motor until the motor liquid
inside the motor sta rts runni ng out a t the p lug (A ).
Caution: Do not use motor liqui d as it conta ins
oil.
7. Remo ve the funnel and refit the plug (A).
The submer
sible motor is now ready for ins tallation.
Fig. 3 Motor position du ring filling – MMS
4.2 Positional r equirements
The motor can be in stalled either vertically or
horizontally.
A complete list of motor types s uitable for hor izontal
installation is sho wn in section 4.2.1.
4.2.1 Motors suitable for horizontal installation
4.3 Liquid temper atures/coolin g
The maximum liquid temperature a nd the minimu m
liquid velocity pas t the motor ap pear from the
following table.
It is recommended to insta ll the motor a bove the wel l
screen in order to achieve prope r motor cooli ng.
TM03 8129 0507
Caution
Before fitting the m otor to a pump after
a long period of storage, lub ricate the
shaft seal by adding a few drop s of
water and turning th e shaft.
45°
TM03 2065 3605
Motor type
Power output
50 Hz
Power output
60 Hz
[kW] [kW]
MS All sizes All sizes
MMS 6000 3.7 to 30 3 .7 to 30
MMS 8000 22 to 92 22 to 92
MMS 10000 75 to 170 75 to 170
MMS 12000 147 to 220 –
Caution
During operation, th e motor mus t
always be completely subm erged in the
liquid. Please cons ult the pump
manufacturer's NPSH data.
Warning
If the motor is us ed in hot li quids
(40 to 60 °C), it m ust be ensured that
persons cannot com e into con tact with
the motor and the i nstallation, e .g. by
installing a guard.
45°
A
1 3
4 2
6” - 50Nm
8” - 150Nm
45°
!
9
If there is a risk of sediment b uild-up, suc h as sand,
around the motor, a fl ow sleeve sho uld be used i n
order to ensure pro per cooling of the motor.
* At an ambient pres sure of mini mum 1 bar (1 MPa)
5. Electrical conn ection
5.1 General
The electrical connection sho uld be carried out by an
authorised electrici an in accorda nce with loca l
regulations.
The supply voltag e, rated m aximum cur rent and
cos appear from the l oose data pla te that must be
fitted close to the installation site.
The required volta ge quality for Grundf os MS and
MMS submersible moto rs, measured at the motor
terminals, is – 10 %/+ 6 % of th e nominal vo ltage
during continuous op eration (incl uding variatio n in
the su
pply voltage and loss es in cables ).
Furthermore, it must be chec ked that there is vol tage
symmetry in the ele ctricity sup ply lines, i. e. same
difference of vo ltage betw een the i ndividual phases.
See also 9. Checkin g of motor and cable, poi nt 2.
If MS motors with a bu ilt-in tempera ture transmitter
(Tempcon) are not insta lled to gether with a n MP 2 04
or similar Grundfos motor protect ion, they mus t be
connected to a 0.47 µF capacitor a pproved for
phase-phase operati on (IEC 384-1 4) to meet th e
ECEMC directive (2 004/108/EC). The capacito r
must be connected t o the two pha ses to which the
temperature transmi tter is conne cted. See fi g. 4.
Fig. 4 Connection of capacit or
The
motors are wound for direct-o n-line starting or
star-delta starting and the sta rting c urrent is betw een
4 and 6 times the ra ted current o f the motor.
The run-up time of the motor is only about
0.1se cond. Direct- on-line startin g is there fore
normally approved b y the electri city supply
authorities.
5.1.1 Frequency conv erter operati on
Three-phase MS m otors can be connecte d to a
frequency converter.
If a temperature tr ansmitter is required, a Pt100
sensor for fitting t o the submers ible motor ca n be
ordered from Grundf os.
Note
In cases where t he stated liquid
velocity cannot be a chieved, a fl ow
sleeve must be inst alled.
Motor
Installation
Flow
past the
motor
Vertical Horizontal
MS 402
MS 4000
MS 6000
0.15 m/s
40 °C
(~ 105 °F)
40 °C
(~ 105 °F)
MS 4000I*
MS 6000I*
0.15 m/s
60 °C
(~ 140 °F)
Flow sleeve
recommended
60 °C
(~ 140 °F)
Flow sleeve
recommended
MS6T30 0.15 m/s
30 °C
(~ 86 °F)
30 °C
(~ 86 °F)
MS6T60 1.0 m/s
60 °C
(~ 140 °F)
60 °C
(~ 140 °F)
MMS
0.15 m/s
25 °C
(~ 77 °F)
25 °C
(~ 77 °F)
0.50 m/s
30 °C
(~ 86 °F)
30 °C
(~ 86 °F)
Note
For 37 kW MMS 6000, 110 kW MMS 8000
and 170 kW MMS 10000 , the maximu m
liquid temperature is 5 °C low er than
the values stated in the above ta ble.
For 190 kW MMS 1000 0, the
temperature is 10 ° C lower.
Warning
Before starting work on the m otor,
make sure that the electricity s upply
has been switched off and that it canno t
be accidentally switched on.
Warning
The motor must be earthed.
The motor must be connected to an
external mains swit ch with a min imum
contact gap of 3 mm in all poles.
TM00 7100 0696
Caution
If an MS motor wi th temperat ure
transmitter is connect ed to a frequency
converter, a fuse inco rporated in t he
transmitter will melt and th e transmitter
will be inactive. Th e transmitter cannot
be reactivated. This means that t he
motor will operate l ike a motor w ithout
a temperature trans mitter.
1
2
3
4
1 = L1: brown
2 = L2: black
3 = L3: grey
4 = PE: yellow/gree n
0.47 F
8
4.1.2 Grundfos MS6 a nd MS 6000 submersible
motors
• If the motor is delivered fr om stock, the liquid
level must be check ed before the motor is
installed. See fig. 2.
• In the case of s ervice, the liquid lev el must be
checked. See fig. 2.
Filling procedure:
The filling hole for mo tor liquid is p laced at the top of
the motor.
1. Posit ion the subme rsible m otor as s hown i n fig . 2.
The filling scre w must be at the highes t point of
the motor.
2. Remov e the screw f rom the filli ng hole.
3. Injec t liquid into the motor wi th the fillin g syringe,
fig. 2, until the l iquid runs ba ck out of the filling
hole.
4. Repla ce the screw in the fillin g hole and ti ghten
securely before cha nging the
posi
tion of the
motor.
Torque: 3.0 Nm.
The submersible mot or is now read y for installa tion.
Fig. 2 Motor position duri ng filling – M S6 and
MS 6000
4.1.3 Grundfos MMS 6000, MM S 8000, MMS 10000
and MMS 12000 subme rsible motors
Filling procedure:
Place the motor at a 45 ° angle w ith the top o f the
motor upwards. See fig. 3.
5. Unscr ew the plug ( A) and place a funnel in t he
hole.
6. Pour tap water into the mo tor until the mo tor liquid
inside the motor sta rts runni ng out a t the p lug (A ).
Caution: Do not use motor liqui d as it contai ns
oil.
7. Remov e the funnel and refit the plug (A).
The subm
er
sible motor is now ready for insta llation.
Fig. 3 Motor position duri ng filling – M MS
4.2 Positional r equirements
The motor can be in stalled either vertically or
horizontally.
A complete list of motor types su itable for hor izontal
installation is show n in section 4.2.1.
4.2.1 Motors suitable for horizontal installation
4.3 Liquid temper atures/coolin g
The maximum liquid temperature a nd the minimu m
liquid velocity past the motor ap pear from the
following table.
It is recommended to instal l the motor a bove the wel l
screen in order to achieve proper motor coolin g.
TM03 8129 0507
Caution
Before fitting the m otor to a pump after
a long period of s torage, lub ricate the
shaft seal by adding a few drop s of
water and turning th e shaft.
45°
TM03 2065 3605
Motor type
Power output
50 Hz
Power output
60 Hz
[kW] [kW]
MS All sizes Al l sizes
MMS 6000 3.7 to 30 3.7 to 3 0
MMS 8000 22 to 92 22 to 92
MMS 10000 75 to 170 75 to 170
MMS 12000 147 to 220 –
Caution
During operation, th e motor mus t
always be completely subm erged in the
liquid. Please consu lt the pump
manufacturer's NPSH data.
Warning
If the motor is us ed in hot li quids
(40 to 60 °C), it m ust be ensured that
persons cannot com e into con tact with
the motor and the in stallation, e .g. by
installing a guard.
45°
A
1 3
4 2
6” - 50Nm
8” - 150Nm
45°
!
9
If there is a risk of sediment b uild-up, suc h as sand,
around the motor, a fl ow sleeve sho uld be used i n
order to ensure pro per cooling of the motor.
* At an ambient pres sure of mini mum 1 bar (1 MPa)
5. Electrical conn ection
5.1 General
The electrical connection sho uld be carried out by an
authorised electrici an in accorda nce with loca l
regulations.
The supply voltag e, rated m aximum cur rent and
cos appear from the l oose data pla te that must be
fitted close to the installation site.
The required volta ge quality for Grundf os MS and
MMS submersible moto rs, measured at the motor
terminals, is – 10 %/+ 6 % of th e nominal vo ltage
during continuous op eration (incl uding variatio n in
the su
pply voltage and loss es in cables ).
Furthermore, it must be chec ked that there is vol tage
symmetry in the ele ctricity sup ply lines, i. e. same
difference of vo ltage betw een the i ndividual phases.
See also 9. Checkin g of motor and cable, poi nt 2.
If MS motors with a bu ilt-in tempera ture transmitter
(Tempcon) are not insta lled to gether with a n MP 2 04
or similar Grundfos motor protect ion, they mus t be
connected to a 0.47 µF capacitor a pproved for
phase-phase operati on (IEC 384-1 4) to meet th e
ECEMC directive (2 004/108/EC). The capacito r
must be connected t o the two pha ses to which the
temperature transmi tter is conne cted. See fi g. 4.
Fig. 4 Connection of capacit or
The
motors are wound for direct-o n-line starting or
star-delta starting and the sta rting c urrent is betw een
4 and 6 times the ra ted current o f the motor.
The run-up time of the motor is only about
0.1se cond. Direct- on-line startin g is there fore
normally approved b y the electri city supply
authorities.
5.1.1 Frequency conv erter operati on
Three-phase MS m otors can be connecte d to a
frequency converter.
If a temperature tr ansmitter is required, a Pt100
sensor for fitting t o the submers ible motor ca n be
ordered from Grundf os.
Note
In cases where t he stated liquid
velocity cannot be a chieved, a fl ow
sleeve must be inst alled.
Motor
Installation
Flow
past the
motor
Vertical Horizontal
MS 402
MS 4000
MS 6000
0.15 m/s
40 °C
(~ 105 °F)
40 °C
(~ 105 °F)
MS 4000I*
MS 6000I*
0.15 m/s
60 °C
(~ 140 °F)
Flow sleeve
recommended
60 °C
(~ 140 °F)
Flow sleeve
recommended
MS6T30 0.15 m/s
30 °C
(~ 86 °F)
30 °C
(~ 86 °F)
MS6T60 1.0 m/s
60 °C
(~ 140 °F)
60 °C
(~ 140 °F)
MMS
0.15 m/s
25 °C
(~ 77 °F)
25 °C
(~ 77 °F)
0.50 m/s
30 °C
(~ 86 °F)
30 °C
(~ 86 °F)
Note
For 37 kW MMS 6000, 110 kW MMS 8000
and 170 kW MMS 10000 , the maximu m
liquid temperature is 5 °C low er than
the values stated in the above ta ble.
For 190 kW MMS 1000 0, the
temperature is 10 ° C lower.
Warning
Before starting work on the m otor,
make sure that the electricity s upply
has been switched off and that it canno t
be accidentally switched on.
Warning
The motor must be earthed.
The motor must be connected to an
external mains swit ch with a min imum
contact gap of 3 mm in all poles.
TM00 7100 0696
Caution
If an MS motor wi th temperat ure
transmitter is connect ed to a frequency
converter, a fuse inco rporated in t he
transmitter will melt and th e transmitter
will be inactive. Th e transmitter cannot
be reactivated. This means that t he
motor will operate l ike a motor w ithout
a temperature trans mitter.
1
2
3
4
1 = L1: brown
2 = L2: black
3 = L3: grey
4 = PE: yellow/gree n
0.47 F
8
4.1.2 Grundfos MS6 a nd MS 6000 submersible
motors
• If the motor is delivered fr om stock, the liquid
level must be check ed before the motor is
installed. See fig. 2.
• In the case of s ervice, the liquid lev el must be
checked. See fig. 2.
Filling procedure:
The filling hole for mo tor liquid is p laced at the top of
the motor.
1. Posit ion the subme rsible m otor as s hown i n fig . 2.
The filling scre w must be at the highes t point of
the motor.
2. Remov e the screw f rom the filli ng hole.
3. Injec t liquid into the motor wi th the fillin g syringe,
fig. 2, until the l iquid runs ba ck out of the filling
hole.
4. Repla ce the screw in the fillin g hole and ti ghten
securely before cha nging the
posi
tion of the
motor.
Torque: 3.0 Nm.
The submersible mot or is now read y for installa tion.
Fig. 2 Motor position duri ng filling – M S6 and
MS 6000
4.1.3 Grundfos MMS 6000, MM S 8000, MMS 10000
and MMS 12000 subme rsible motors
Filling procedure:
Place the motor at a 45 ° angle w ith the top o f the
motor upwards. See fig. 3.
5. Unscr ew the plug ( A) and place a funnel in t he
hole.
6. Pour tap water into the mo tor until the mo tor liquid
inside the motor sta rts runni ng out a t the p lug (A ).
Caution: Do not use motor liqui d as it contai ns
oil.
7. Remov e the funnel and refit the plug (A).
The subm
er
sible motor is now ready for insta llation.
Fig. 3 Motor position duri ng filling – M MS
4.2 Positional r equirements
The motor can be in stalled either vertically or
horizontally.
A complete list of motor types su itable for hor izontal
installation is show n in section 4.2.1.
4.2.1 Motors suitable for horizontal installation
4.3 Liquid temper atures/coolin g
The maximum liquid temperature a nd the minimu m
liquid velocity past the motor ap pear from the
following table.
It is recommended to instal l the motor a bove the wel l
screen in order to achieve proper motor coolin g.
TM03 8129 0507
Caution
Before fitting the m otor to a pump after
a long period of s torage, lub ricate the
shaft seal by adding a few drop s of
water and turning th e shaft.
45°
TM03 2065 3605
Motor type
Power output
50 Hz
Power output
60 Hz
[kW] [kW]
MS All sizes Al l sizes
MMS 6000 3.7 to 30 3.7 to 3 0
MMS 8000 22 to 92 22 to 92
MMS 10000 75 to 170 75 to 170
MMS 12000 147 to 220 –
Caution
During operation, th e motor mus t
always be completely subm erged in the
liquid. Please consu lt the pump
manufacturer's NPSH data.
Warning
If the motor is us ed in hot li quids
(40 to 60 °C), it m ust be ensured that
persons cannot com e into con tact with
the motor and the in stallation, e .g. by
installing a guard.
45°
A
987
Pt100/1000
MMS6”/8”