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FLOAT SWITCHES
Mechanically activated float switches offer a reliable low
current control for dewatering applications.
The mechanical float switch control will turn ON (close)
when the float tips 45° above -horizontal, indicating a high
level, and turns OFF (opens) when the float switch drops
45° below horizontal. Reference Figure 6 and Figure 7.
Maximum pumping range is 120 degrees. See Figure 5
below.
Figure 5. Pumping Range (Float Switch)
The pumping range of the pump is determined by the float
switch tether cord. Use Table 3 as guide line to determine
your required pumping range. Pumping ranges are based
on non-turbulent conditions. Range may vary due to water
temperature and cord shape. Please note as the tether
length increases, so does the variance of the pumping
range.
PUMP
ON
60
60
120
PUMP
OFF
SUBMERSIBLE
PUMP
2 in.
5.08 cm.
4 in.
10.16 cm.
6 in.
15.24 cm.
8 in.
20.32 cm.
10 in.
25.4 cm.
12 in.
30.48 cm.
14 in.
35.56 cm.
16 in.
40.46 cm.
6 in.
15.24 cm.
10 in.
25.4 cm.
14 in.
35.56 cm.
18 in.
45.72 cm.
22 in.
55.88 cm.
27 in.
68.58 cm.
31 in.
78.74 cm.
35 in.
88.9 cm.
Float switch housings are constructed of high-impact,
corrosion resistant polypropylene with mechanically
activated, snap action contacts.
Suitable for most liquid environments.
Hermetically sealed.
Thick-walled non-corrosive PVC plastic enclosure.
Pressure tested to 30 ft. (9 meters).
Standard SJO, 16-gauge, 2 conductor cord (20 ft./6.09 m).
Figure 6. Float Switch (Closed)
Figure 7. Float Switch (Open)
ON/OFF
RAMP
STEEL
BALL
CONTACTS
CLOSED
ON/OFF
RAMP
STEEL
BALL
CONTACTS
OPEN