Kessel SG 400 V Mono Original Operation Manual page 51

Duo float switch
Connect the ends of the float switch's leads to terminal [7a].
[7]
010-532_05
PCB designation
Bezeichnung Platine
Alarm
Alarm
On2
On2
On1
On1
Off
O
A = both pumps switched off
A = Beide Pumpen ausgeschaltet
B = switch pump 1 on B = Pumpe 1 einschalten
C = Pumpe 2 einschalten
C = switch pump 2 on
D = Alarm
D = alarm
Installation and operating manual
Alarm
On 2
Ein2
On 1
Ein1
Off
Aus
[7a]
51