NKG3-M Time Switch

NKG3  programmable  time control switch is used in automatic control circuits, such as being used to regularly control switch-on and off of  the circuit  according  to  the setting time, which is widely used in street lamps, advertising lamps, breeding plants and similar equipment.

For response market demands and catch our competitors, our new series NKG3 time switch can be adjust at the switch-on and off  time everyday according  to the latitude, and also it can be adjustable  according  to the daylight saving time, which means changeable according  to winter/summer time. It  can be closed as a normal type when you don’t need it.

This great improvement made it more convenient and practical, saving energy for reducing  unnecessary lighting time, intelligent time control according  to latitude, the switch time more reasonable and scientific,providing an intelligent switch time for breeding plant according to latitude and daylight saving time.

Application domains

Technical data

  • Rated control supply voltage 220/230 VAC /50/60Hz
  • Usage category of auxiliary circuit AC-15
  • Rated operational current( Ie) 220V/0.75A 380V/0.47A
  • Time control range 1s~168h
  • Mechanical life 30 thousand times
  • Electrical life 10 thousand times

Dimensions

  • Profile and Installation Dimension

  • Connection Mode

    1.Direct control mode: If the electrical apparatus under control is single-phase supplied and has an operational current not greater than the rated value of the switch, direct control mode can be used, as shown in Figure 1. For lamp loads with a large starting impulse current, AC contactor expansion control mode should be used.

fig 1  2.Single expansion mode: If the electrical apparatus under control is single-phase supplied and has an operational current greater than the rated value of the switch, AC contactor expansion control mode should be used, as shown in Figure 2.

fig 23.Three-phase operating mode:  If the electrical apparatus under control is three-phase supplied, an external AC contactor is required.
 a. If the coil voltage of the control contactor is AC220V 50Hz, the connection mode shown in Figure 4 should be used.

fig 4

 

b.  If the coil voltage of the control contactor is AC380V 50Hz, the connection mode shown in Figure 5 should be used.

fig 5