Float Switches
KARI float switch 3H | 3L | 3Y | 3A | 3HE | 3LE | 3YE | 3AE
The KARI Float Switch is a control device for charging and discharging pumps and motor and magnetic valves. It is also an alarm device that alerts the user at specified surface levels. Thanks to its large float casing (Ø 170 mm), the KARI Float Switch has a buoyancy that guarantees smooth, troublefree operation under all conditions. SGS FIMKO Oy (the Finnish Electrical Inspectorate) has performed testing in accordance with the Low Voltage Directive (LVD) and approved the KARI Float Switch for use in non-flammable liquids at 250 volts.
An example of operation of the model 3h
AlarmLiquid rises to a level for monitoring.
StartLarge amount of liquid. Discharging pump starts.
StopLower limit for discharging. Discharging pump stops.
Functions
Discharging-pump control
| 3H | Discharging-pump control + high level alarm. Pump control with one switching element. |
| 3HE | Discharging-pump control + isolated high level alarm. Pump control with one switching element. |
| 3Y | Discharging-pump control + high level alarm. Pump control with two switching elements. |
| 3YE | Discharging-pump control + isolated high level alarm. Pump control with two switching elements. |
Charging-pump control
| 3L | Charging-pump control + low level alarm. Pump control with one switching element. |
| 3LE | Charging-pump control + isolated low level alarm. Pump control with one switching element. |
| 3A | Charging-pump control + low level alarm. Pump control with two switching elements. |
| 3AE | Charging-pump control + isolated low level alarm. Pump control with two switching elements. |
Other information
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| Operating curve | ||
| Installation and adjustment |
Order code
