Features Puts lights ON at Dusk and OFF at Dawn automatically.  Delayed ON and Delayed OFF to avoid transient disturbances. Two standard models 6A. and 12A. Glass-epoxy PCB eliminates chances of leakage. Elegant plastic casing for indoors  ( TLS20PI) and robust SMC / Cast Aluminium casing ( TLS20PO) for outdoors available. Adjustable light level. LED indication for Supply on 'LINE' and relay on  'LOAD'. For higher ratings models in sheet steel housing (TLS20S) are available upto 100A, 415V, 3 phase.

Indoor Type               Outdoor Type                      ( TLS20PI)                   ( TLS20PO)

Introduction

Twilght Switch TLS20P is a light activated electronic switch which switches ON the load during sunset (Dusk) and swiches OFF   during sunrise (Dawn) automatically. So it is also called Dusk/Dawn switch.  A potentiometer is provided to adjust the light sensivity. light is sensed through a window by an LDR. It comes in a plastic casing for indoor/semi-outdoor (TLS20PI) use and in heavy duty SMC/cast aluminium casing for outdoor (TLS20PO) use.Twilight Switch In Sheet Steel Enclosures (TLS20S) is available in ratings upto 100A, 415V, 3 phase.

Application

Twilight Switch TLS20P can be used to control lights automatically for aviation, railway stations, shipyard, lawns, parks, sites, railway sidings, factories, hospitals, yards, roads, streets, public places, markets, neon signs, advertisement hoardings, housing estates, homes, and similar innumerable sites.

Technical Data
 
 

Supply Voltage VAC      :   230V    Supply Frequency         :  50/60 Hz.    Permissible Amb. Temp  :  - 15 to + 55 deg.C.    Permissible Voltage    variation                      :  - 85 to 110% of V.    Permissible frequency    variation                      :  - 10 to + 10 %   . Maxm.Power    consumption                :   6.5 VA.     Adjustable Light Level    :   2-200 Lux   Terminals                     :   Suitable for 2x10 sq.mm.                                                   cable with proper socket.   Insulation                     :   2500V AC for 1 min.   Mechanical Life           :   10 million.

AC Contact Rating    :    6A Unit    (at 250VAC 50 Hz )          Continuous capacity 6A   ( at 250 VAC 50 Hz )        Rated making capacity11A                                         Rated breaking capacity                                         5A    (Resistive)                                         1.3A  (Inductive 0.5 pf.)                                        12A Unit                                            Continuous capacity 12A                                          Rated making capacity20A                                          Rated breaking capacity                                          12A    (Resistive)                                           3A  (Inductive 0.5 pf.)    Weight                       :    1.34 Kg.(Outdoor)                                                0.45 Kg.(Indoor).

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