Kessel Aqualift Comfort 400V Mono Installation And Operating Instructions Manual page 54

Printed board connections for the pump(s)
1-3: phases
4-5: Winding temperature switch
5-6: Temperature monitoring*
7 PE: Protective conductor
*TF1: temperature monitoring connection, self-resetting
*TF2: temperature monitoring connection, NOT self-resetting
For pumps with only one temperature monitoring, bridge
the terminal of the monitoring type not present. Take the
ATEX regulations into account!
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4.5
A connection overview of the printed boards is given at the
end of this chapter.
4.5.1
Installation and operating instructions
Connect sensors and control
Sensors without ATEX requirement
010-532_02_SON