Xylem LOWARA Sekamatik 12MK7 Installation, Operation And Maintenance Manual page 20

8.1.2. 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
T1 / T2
T1 / T4
T1 / T2 / T3
K1 / K2
PT1 / PT2
PT3 / PT4
PT6 / PT6
P1 / P2
P3 / P4
S1 / S2
S3 / S4
S5 / S6
S7 / S8
S9 / S10
S11 / S12
H1 / H2
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Monitoring in winding
Temperature limiter (2 switches in series)
Temperature controller (2 switches in series)
PTC – Thermistor (3 thermistors in series)
Bearings monitoring
Seal monitoring
Seal monitoring in connection compartment
Seal monitoring in Motor compartment with 2 Electrodes
Seal monitoring in Motor compartment with float switch
Seal monitoring in Gearbox (Agitator)
Seal monitoring in Leakage compartment (internal cooling)
Heating
Monitoring system
Temperature limiter and controller
3 x PT100 individually installed
PT100 upper bearing
PT100 lower bearing
Seal monitoring in oil chamber
Heating system