The CHINT NKG3 Time Switch delivers precise and automated control for electrical circuits, ensuring efficient operation of lighting, signage, and industrial equipment. Designed for AC 50/60Hz systems up to 240V, it allows manual or automatic switching, daylight saving adjustment, and latitude-based timing. With 16 programmable ON/OFF groups, a built-in maintenance-free battery, and DIN rail installation, the NKG3 provides dependable scheduling and energy optimization for commercial and industrial automation systems.

• Standard compliance: IEC/EN 60947-5-1
• Rated control supply voltage (Us): AC 220V / AC 230V / AC 240V, 50/60 Hz
• Allowable supply voltage fluctuation: 85% – 110% of Us
• Rated operational current (Ie): up to 3A
• Rated insulation voltage (Ui): 250V
• Utilization 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
• Programming capacity: 16 ON/OFF groups per day
• Time control range: 1 minute – 24 hours
• Timing accuracy: ±2 seconds/day
• Minimum time interval: 1 minute
• Electrical life: ≥ 10,000 operations
• Mechanical life: ≥ 100,000 operations
• Built-in power reserve: Internal battery (no replacement required)
• Ambient temperature: −5 °C to +40 °C
• Installation method: 35 mm DIN rail mount
• Dimensions: Height: 86 mm; Width: 37 mm; Depth: 68.6 mm
• Wiring terminals: Screw-type connectors
• Mounting position: Vertical installation
• Operation indicator: 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 mode with external contactor (220V or 380V coil)