44 | EngliSH
10. Connection of pumps and mixers
Danger from electric current!
Incorrect working with electric current brings danger 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
Terminal in control cabinet
U1
U1
V1
V1
W1
W1
U2
U2
V2
V2
W2
W2
Pumps in Direct start version
Cable identification Motor
Terminal in control cabinet
U
U1
V
V1
W
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 monitoring
devices are run from the power cable.
Cable identification Motor
Monitoring system
Monitoring in winding
T1 / T2
Temperature limiter (2 switches in series)
T1 / T4
Temperature controller (2 switches in series)
T1 / T2 / T3
Temperature limiter and controller
K1 / K2
PTC – Thermistor (3 thermistors in series)
PT1 / PT2
3 x PT100 individually installed
PT3 / PT4
PT6 / PT6
Bearings monitoring
P1 / P2
PT100 upper bearing
P3 / P4
PT100 lower bearing
Seal monitoring
S1 / S2
Seal monitoring in oil chamber
S3 / S4
Seal monitoring in connection compartment
S5 / S6
Seal monitoring in Motor compartment with 2 Electrodes
S7 / S8
Seal monitoring in Motor compartment with float switch
S9 / S10
Seal monitoring in Gearbox (Agitator)
S11 / S12
Seal monitoring in Leakage compartment (internal cooling)
Heating
H1 / H2
Heating system
