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Product information "Water Level Switch WPS 4000"


The level difference switch WPS 4000 is suitable for the automatic level control
etc. of conductive liquids in tanks, wells, water tanks the monitoring
via electrodes (not included). The device protects pumps and systems before leak damage, unnecessary loss
of liquid and prior to drying and overflow. It monitors and controls liquid levels everywhere
where a certain level to be maintained. For installation in sub-distribution boards, control cabinets, surface mount housings, etc.
The following functions can be implemented: refilling, emptying, refilling
with emergency shutdown, refilling and emptying, discharging with emergency shutdown,
Refilling with manual emergency shutdown, refilling with automatic and manual emergency shutdown.


– As a refill or discharge unit configurable. The liquid level is automatically between two sensors (min., And Max) held
– To adjust the conductivity of the switching threshold can be set in the range from 10 kOhm to 200 kOhm.
– A pure AC measurement path prevents electrolytic decomposition of stainless steel electrodes (not included)
– An alarm sensor has thereby expanded possibilities for the control tasks of the device.
-. Input for water sensor or float switch (parallel connection)
– Switching point for any water levels above water sensors selectable
– Switching output (Rel.) Configurable as normally closed or normally open
– For all memory of concrete, plastic or metal
– No dangerous voltage on the sensor
– Operating and unattended operation
– Sensor cable can be extended up to 50 m (via two-core cable)

Scope of delivery:

Control unit with detailed installation and operating instructions. (sensors are not included, should be ordered separately)

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Technical Data
– Operating voltage: 230 V / 50-60 Hz
– Power consumption: max. 1.5 W
– Output: 2 x relay output 250VAC / 16A or 30VDC / 16A
– Switching capacity: max. 3000 W
– Case: hat rail
– Trigger sensitivity: adjustable: 10 … 200 kOhm
– Alarm delay time: adjustable: 1s … 10min.
– Temperature range: -15 ° C … + 40 ° C
– Degree of protection: IP20
– Mounting: for standard 35 mm mounting rail