Float Switches
KARI float switch 4H | 4L | 4Y | 4A
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 4h
High level alarmIssued when the level of liquid gets too high, or initiates valve discharging when, for example, the pump is out of order.
StartLarge amount of liquid. Discharging pump starts.
StopLower limit for discharging. Discharging pump stops.
Low level alarmIssued when the level of liquid gets too low, or initiates valve charging when, for example, the pump is out of order.
Functions
Discharging-pump control
| 4H | Pump control with one switching element. High and low level alarms. |
| 4Y | Pump control with two switching elements. High and low level alarms. |
Charging-pump control
| 4L | Pump control with one switching element. High and low level alarms. |
| 4A | Pump control with two switching elements. High and low level alarms. |
Other information
| Circuit diagram | 
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| Technical information | ||
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| Operating curve | ||
| Installation and adjustment |
Order code
