LST
Energy saving
Lamps durability
Adjustable time from 1 to 7 minutes
Usable for fluorescent or incandescent lamps
Input supply of 220 VAC
Output current of 104 (20 incandescent lamps of 100 W)
Principles of Operation:
This device is designed for energy saving and lamps durability.
It is not economical to apply simple on/off switches in many apartments and comni- dors in energy saving point of view because. they should be tumed off again several minutes after they get OWN. By use of timer type LST. one can tum on the lights by a switch press. Then at the end of adjusted time. the device turns off the lights automatically.
Installation and Start-Up:
Two wire Cabling: Network phase and null have to be connected to terminals PH and MP respectively. All the lamps have to be put in parallel together and connected from one side to net- work null and the other side to terminal COM.
All the press switches (push-buttons) have to be put in parallel together and con- nected from one side terminal PH and the other side to terminal COM.
Single-Wire Cabling:
Apply this method in apartments with just a single phase.
Network phase and null have to be connected to terminals PH and MP.
All the lamps have to be put in parallel together and connected from one side to net- work null and the other side to terminal COM.
All the press switches (poush-buttons) have to be put in parallel together and connected from one side phase and the other side to terminal COM.
Attention: Definitely. use a 10 A miniature fuse in the course of phase line. to make sure of cabling and protect short circuit. Affer wiring. PWR signal gets ON upon energization. Every time after pressing lamps push-buttons. OUT signal gets ON and at the end of time adjusted by DELAY po- tentiometer handle. OUT signal and lamps would be tumed off. In one mode! of staircase timers. a key is considered. This key has two modes. lf key is in Timer (T) mode. lamps would be tumed off after adjusted time. If key is in Cont. (C) mode. timer gets out of circuit and by pressing lamps’ push-buttons. lamps stay ON ‘ond do not get OFF. Then. to turn the lamps off. the key should be placed in (1) position.
Technical Specifications:
Network Voliage: 220 VAC + 10%
Network Frequency: 50+ 5 Hz
Internal Loss: About 3 W
OFF Delay: 1 to 7 Minutes. adjustable by DELAY potentiometer handle Contact Current: 104
Contact Power: 2000 W (20 incandescent lamps of 100 W)
