| Brand | HK Electrical |
| Model NO. | GRT8-WS WiFi Time-Control Relay |
| Rated frequency | 50/60Hz |
| Series | GRT8 |
The GRT8-WS WiFi Time-Control Relay is a smart timing device enabling remote management via WiFi. Users can set precise timing schedules or control devices on/off in real time through mobile apps, compatible with smart home and industrial automation systems.
It delivers stable performance, supports flexible timing modes and easy network configuration. Ideal for lights pumps appliances and other equipment it enhances operational convenience and energy efficiency while reducing manual intervention.
Support access to Tuya’s App Tuya smart.
The on and off time of the load can be conveniently set through the App.
On and off can be controlled manually.
The cycle on / off can be set during the on time.
DIN rail mounting.
| Technical parameters | |||
| GRT8-WS | |||
| Function | WiFi time-control relay | ||
| Supply terminals | A1-A2 | ||
| Voltage range | AC/DC110-240V50Hz | ||
| Burden | AC0.09-3V/DC0.05-1.7W | ||
| Supply voltage tolerance | -15%;+10% | ||
| Supply indication | green LED | ||
| Time setting | APP | ||
| Time deviation | ±30s | ||
| WIFI connectivity | 802.11 b/g/n 2.4GHz | ||
| Output | 1×SPDT | ||
| 16A/AC1 | |||
| Min.breaking capacity DC | 500mW | ||
| Output indication | red LED | ||
| Mechanical life | 1×10⁷ | ||
| Electrical life(AC1) | 1×105 | ||
| Operating temperature | -20℃~+55℃ | ||
| Storage temperature | -35℃~+75℃ | ||
| Mounting/DIN rail | Din railEN/IEC60715 | ||
| Protection degree | IP20 | ||
| Operating position | any | ||
| Overvoltage cathegory | III. | ||
| Pollution degree | 2 | ||
| Max.cable size(mm²) | 1×2.5mm² or 2×1.5mm² 0.4N·m | ||
| Dimensions | 90mm×18mm×64mm | ||
| Weight | 62g | ||
| Standards | GB/T14048.5,IEC60947-5-1,EN61812-1 | ||
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