Stuart Turner Float Switch - Manual (Page 5)

- 5 -
Cont ...
Two switch installation (providing low level cut out protection)
For installations where an erratic water supply can be a problem, two switches can be
used as illustrated. Float switch 2 is controlling the start and stopping of the pump, whilst
float switch 1 is providing low level protection by preventing the operation of the pump in
the case of water shortage.
FLOAT SWITCH 2
FUSE
N1
MOTOR
L
N
E
SUPPLY 220/240-1PH-AC
L2 L1 N2
PROTECTED BY AN INTEGRAL THERMAL TRIP
FOR MOTORS UP TO 370 WATT THAT ARE
NOTE:D.O.L. SWITCHING RECOMMENDED
FLOAT SWITCH 1
N1 L2 L1 N2
FLOAT SWITCH 1
FLOAT SWITCH 2
OUTLET
WATER SUPPLY
INLET
WATER SUPPLY
Fig. 3
Fig. 4