Selecting the Right Controller Type for a Given Load Type

  1. Various types of LED fluorescent lights
    The LT3704 is the ideal choice for controlling the high starting current needed by LED fluorescent lights to operate. This is because most LED fluorescents have their own internal power supply and has a very high starting current.
  2. Metal halide lamps for retail shops
    Metal halide lamps is a type of gas discharge lamp and causes great harm to relays because of its large surge currents. So it is suggested that the LT2504 be used with the external LR02 relay or as an alternative, the LT3100 be used with magnetic contactors.
  3. Regular fluorescent lamps
    The L3604 with built-in relays can be used.
  4. Outdoor lighting
    Lighting for building facades, billboards, streets, ornamentation, stadiums, ball courts and other outdoor venues which uses high powered LED lights or metal halide lamps should make use of the LT3100 in conjunction with magnetic contactors.
  5. Business venues (e.g. shopping centers, showrooms, public buildings) and distant areas.
    Modules with built-in relays is not recommended, instead the modules with the external LR02 relay or the LT3100 with magnetic contactors should be chosen instead for the following reasons:

    1. The load is too large for internal relays, external relays is better able to withstand the surge currents.
    2. There is a backup manual control just in case.
    3. When the external relay or contactor is damaged, it can be replaced more easily.
  6. Hallways, elevator lounges, restrooms and basement parking
    Unless LED fluorescents are used, then one can choose to make use of the LT3604 with built-in relays.
  7. Fans, air conditioning and ventilation for basement parking.
    The LT3100 controlling the magnetic contactor should be used.
  8. Pumps and drainage control
    Most buildings commonly have a control and monitoring system for the lighting, basement parking ventilation fans and drainage pumps.
    For such a system, a full-fledged building automation system is not necessary as all of these elements can be covered through the ACS50 available from DAE.
  9. Retrofitting for energy saving
    One can make use of the LT3000 or the LT3384 with built-in relays; with the option to make use of the K15 sensor switch, push button switches or digital switches in order to achieve some form of local energy saving effect.

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