Relink-2C Electronic Step Controller (cascade) The Relink-2c enables ventilation control by sequentially switching fans on and off (cascade) based on a 0-10V input. The maximum total current is 10 Amps (total for the five relays). To deal with currents higher than 10 Amps, or to drive three-phase fans, additional contacts could be necessary. Applicable for both new and existing ventilation systems Control for sequentially switching fans on and off in 5 stages through a 0-10V input 12V dc output for direct potentiometer control (to drive the controller directly) Time delay of 5 seconds between the switching of the steps to prevent high starting currents Built-in voltage and current protection Emergency connection to step 2 in case of power failure Ventilation control Mf-Net 0-10 / 10-0 V controller Potentiometer Electronic Step Controller

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