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Product information "Chint Astronimic timer NKG3 (digital), 1-channel (1W) 16A, 230V AC"

NKG3 16-ON 16-OFF AC230V The CHINT NKG3 timer provides precise and automated control of electrical circuits and ensures efficient operation of lighting, signage and industrial equipment. It is designed for AC 50/60Hz systems up to 240V and enables manual or automatic switching, daylight saving time adjustment and latitude-based time control. With 16 programmable ON/OFF groups, a built-in, maintenance-free battery and DIN rail installation, the NKG3 offers reliable scheduling and energy optimisation for commercial and industrial automation systems.
  • Standard conformity: IEC/EN 60947-5-1
  • Nominal voltage of the control supply (US): AC 220V / AC 230V / AC 240V, 50/60 Hz
  • Permissible supply voltage fluctuations: 85 % – 110 % of US
  • Operating current (Ie): up to 3A
  • Nominal insulation voltage (Ui): 250 V
  • Utilisation category: AC-15
    • 240V / 3A
    • 415V / 1.9A
  • Thermal current (Ith): 16A
  • Control modes:
    • Manual ON
    • Manual OFF
    • Automatic operation
    • Latitude and daylight saving time function
  • Programme capacity: 16 ON/OFF groups per day
  • Time control range: 1 minute – 24 hours
  • Time accuracy: ±2 seconds/day
  • Minimum time interval: 1 minute
  • Electrical service life: = 10,000 operations
  • Mechanical service life: = 100,000 operations
  • Built-in power reserve: Internal battery (no replacement required)
  • Ambient temperature: -5 °C to +40 °C
  • Mounting method: 35 mm DIN rail mounting
  • Dimensions:
    • Height: 86 mm
    • Width: 37 mm
    • Depth: 68.6 mm
  • Cable terminals: Screw terminals
  • Mounting position: Vertical installation
  • Operating indication: LCD or LED display (depending on model variant)
  • Weight: approx. 0.25 kg
  • Connection options:
    • Direct control (for small single-phase loads = 3A)
    • Single-phase expansion control via AC contactor
    • Three-phase control with external feeder (220V or 380V coil)
Item number: 74575
Manufacturer number: 310031
Colour: light grey
Halogen-free: Yes
Number of changeover contacts: 1
Rated current: 16A
Width: 36 mm

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Aco Gorgiev

Product Manager, Customer Consultancy Electrical Engineering, Production

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