The ECM1 (External Contactor Module) was designed to be used in with the EL2 Master controller. As the Master Controller works on a low voltage output, it is not capable of switching auxiliary equipment. With the ECM1 you can extend the functionality of your EL2 controller to switch auxiliary equipment, such as heaters, dehumidifiers and CO2 equipment during the lights on or lights off cycle, according to the controller set lighting hours.
The Gavita Master controller EL2 has two outputs for optional External Contactor Modules (ECMs). These industry grade contactor units can switch a load up to 15 amps of accessories during either lights on or lights off period. As the ECMs are steered by a low voltage signal you can even locate them close to the accessories themselves, enabling easy installation and optimal flexibility. They come with localised male and female plugs so that installing auxiliary equipment is just a matter of plug and play.
The contactor in the ECM is activated by the power of the controller, therefore no power supply is required, just one signal wire to the controller.
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