ETT-6 Step control by 2 to 12 relays

ETT-6 Step control by 2 to 12 relays  When applying electrical heating to air in a ventilation system or to the soccer field of a Champions League stadium, it is important, that the requested temperature is maintained as accurately as possible with as small variations in the temperature as possible.

With the complete product range of power and step controllers from OJ Electronics, this requirement can be met, as easily, as a valve is installed to control a hydronic heating system. Best of all, this can be done maintaining the system durability, which today is a natural requirement in hydronic systems.

To find out more, take a closer look at the products on these pages or contact OJ Electronics for special requirements and technical assistance.

ETT-6 step controllers are used for step-by-step connection of electric heating coils or refrigeration compressors. They are also ideal for staged connection of fans, cooling packs, pumps, compressors and boilers. ETT-6 is particularly suitable for ventilation systems where the supply air temperature is controlled by sectional electric heating coils or several refrigeration compressors. ETT-6 can be connected to an EFS power controller, providing a cost effective and accurate, infinitely variable regulation of very large electric heating coils in the entire output range.

  • Three-point control
  • Extendable for up to 12 relays
  • Proportional control output
  • Can be connected to an EFS power controller
  • Ideal for staged connection of fans, cooling packs, pumps, compressors and boilers


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