Kessel Comfort PLUS Installation And Operating Instructions Manual page 30

Printed board connections for the wastewater pump(s) (ATEX)
Route the green-yellow earthing cable from the pump to
the control unit and feed into the control unit via a sepa-
rate cable gland (enclosed).
Set the motor protection switch to the nominal current of
the pump (see type plate of the pump).
U1, V1, W1 (U2, V2, W2 ): Phases
*
PE: protective conductor
TF2: temperature monitoring
* Only 9-wire variant
.
** Systems, which are to satisfy the ATEX requirement, must be connected to the terminal block TF2 (NOT self-resetting)
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**
Installation and operating instructions 010-700_04