ST181-VL4KA.12
Controller for cooling applications
Order number 900223.015
Old Id.Nr.: 377416
Wiring diagram
Product description
The cooling controller ST181-VL4KA.12 is a control unit specifically designed for 24V DC ven-
tilation adjustment. The maximum ventilation power is 10W. The number of revolutions can be
decreased to 20% and thus create a minimum air speed. Due to the galvanic separation of the
ST181-controller the low-voltage ventilator can also be safely operated in a wet environment.
The three switching outputs with our proven 16A relay allow complete operation of the cooling circle
as well as further additional features, as for example the lighting and many other functions.The
timer allows a 1-week time management for the defrosting periods as well as for setting the cooling
chamber temperature at night or on the weekend. With regard to the parameter level, programming
of this timer is easy and user-friendly. The actual time can be re-set simply directly on the operator
surface.
Sensor: PTC
Range: -55...130
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C
Front size: 180mm x 52mm
Panel cut-out: 159mm x 45mm
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