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10. Connection of pumps and mixers
Danger from electric current!
Incorrect working with electric current brings dan-
ger to life! All pumps with bare cable ends must be
connected by a skilled electrician.
10.1 Power cables
Pumps in Star 3-phase version
Cable identification Motor
U1
V1
W1
U2
V2
W2
Pumps in Direct start version
Cable identification Motor
U
V
W
32 | ENGLISH
Terminal in control
cabinet
U1
V1
W1
U2
V2
W2
Terminal in control
cabinet
U1
V1
W1
10.2 Control cables
Depending on the design of the pump/agitator, it may be
that no separate control cable is used. In this case moni-
toring devices are run from the power cable.
Cable identification Motor
Monitoring in winding
T1 / T2
T1 / T4
T1 / T2 / T3
K1 / K2
PT1 / PT2
PT3 / PT4
PT6 / PT6
Bearings monitoring
P1 / P2
P3 / P4
Seal monitoring
S1 / S2
S3 / S4
S5 / S6
S7 / S8
S9 / S10
S11 / S12
Heating
H1 / H2
Monitoring system
Temperature limiter (2 swit-
ches in series)
Temperature controller (2
switches in series)
Temperature limiter and
controller
PTC – Thermistor (3 thermi-
stors in series)
3 x PT100 individually
installed
PT100 upper bearing
PT100 lower bearing
Seal monitoring in oil
chamber
Seal monitoring in connection
compartment
Seal monitoring in Motor
compartment with 2 Elec-
trodes
Seal monitoring in Motor
compartment with float
switch
Seal monitoring in Gearbox
(Agitator)
Seal monitoring in Leaka-
ge compartment (internal
cooling)
Heating system
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