Dimming switch GFK3

Wiring diagram:

Dimming switches type GFK 3 are designed to automatically turn on the various lights in the evening and turn them off at sunrise. In daylight, the relay inside the device is deenergized. As soon as the light intensity falls to below the preset value, it is energized and a circuit is made. The cycle taking place when the light intensity increases is reversed. The circuit is made with a certain delay in order to prevent any unnecessary disconnections due to short-term increases in the light intensity (such as f. in. caused by lightning.) The device comes preset to the desired activating threshold (to be specified when ordering), which is somewhere between 5 and 40 lux. Unless otherwise ordered, it leaves the factory preset to between 10 and 25 lux, a widely accepted rule-of-thumb value. When installing, should be mounted to a vertical surface, with the covering upwards, using 2 pcs.M5screws. When mounting, it should be made sure that enough light falls onto the device, and that other light sources possibly disturb with the night-time operation are avoided. When connecting it should be removed the covering and connected the three-wire cable to the terminal block by reason of wiring diagram given on the data plate. Recommended wire: A05VV-F3×1 mm , blue, brown, black. It is a good practice to clean the covering of the dimming switch at regular intervals in function of the climatic conditions in order to prevent reduced transparency.

The detailed technical description of the product family is in the printed catalogue
"TIMERS MONITORS ELECTRIC DEVICES FOR INSTALLATION"

For further information see the GANZ KK