- Sequence Switching Relay
- 2017-01-14 02:42
- Sequence switching electronic time relay SSR switches three output relay contacts in sequence with time delayin case tha
- Two-Times Automatic Staircase Switch
- 2017-01-14 02:42
- TTS is double time relay. Desired time range (shorter or longer) is chosen by the length ofpressing the trigger button s