| Brand | HK Electrical |
| Model NO. | GRT8-TS1 Bluetooth Time Control Relay Staircase Switch |
| Rated frequency | 50/60Hz |
| Series | GRT8 |
The GRT8-TS1 Bluetooth Time Control Relay Staircase Switch integrates Bluetooth wireless control and precise time management. It allows users to remotely set timing parameters via mobile devices for staircase lighting systems. With flexible timing modes and stable relay performance, it ensures automatic on-off control of staircase lights, enhancing energy efficiency and convenience. Suitable for residential buildings, commercial complexes and public areas, it simplifies lighting management while meeting daily use needs for safety and comfort.
The relay is set through Bluetooth connection of mobile phone app, which is simple and easy to operate.
8 / 16 group timing setting.
It has two working modes: automatic and manual.
It has AC / DC 24v-240v ultra-wide working voltage.
Relay status is indicated by LED.
1-MODULE, DIN rail mounting.
Technical Parameters
| GRT8-TS1 | GRT8-TS2 | |
| Burden（W240） | AC 0.09-3VA/DC 0.05-1.7W | |
| Current rating | 16A(AC1) | |
| Dimensions | 90×18×64mm | |
| Electrical life(AC1) | 1×10^5 | |
| Function | Bluetooth time control relay | |
| Max.cable size(mm²) | 1×2.5mm² or 2×1.5mm² 0.4N·m | |
| Mechanical life | 1×10^7 | |
| Min. breaking capacity DC | 500mw | |
| Mounting/DIN rail | Din rail EN/IEC 60715 | |
| Number of timers | 8-ON/8-OFF | 2×8-ON/2×8-OFF |
| Operating position | any | |
| Output indication | red LED | |
| Pollution degree | 2 | |
| Protection degree | IP20 | |
| Standards | GB/T14048.5,EN61812-1,IEC60947-5-1 | |
| Storage temperature | -35℃to+75℃ (-22°F to 158°F) | |
| Supply indication | green LED | |
| Supply terminals | A1-A2 | |
| Supply voltage tolerance | -15%;+10% | |
| Time deviation | ±2s/day | |
| Time setting | APP(Bluetooth connectivity) | |
| Voltage range（W240） | AC/DC 12-24V(50-60Hz) | |
| Weight | W240-62g,A230-60g | W240-82g,A230-81g |
| operating temperature | -20℃ to+55℃(-4°F to 131°F) | |
| output | 1×SPDT | 2×SPDT |
| overvoltage cathegory | Ⅲ. | |
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