Systemair Frequency converter FRQ5-4A - 208-480V, 3~, 4A, IP54, 5 steps, LED

Speed controller with 5-step switch for 3~ fan Maximum factory-set output frequency: 50Hz Optimized frequency inverters for the control of one fan motor for frequency converter suitable isolation system and bearings e.g. IE2 Integrated 5-Step switch Step0=0Hz; Step1=10Hz; Step2=20Hz; Step3=30Hz; Step4=40Hz; Step5=50Hz Potential-free operation notification Enable contact section Motor protection by connecting thermostats "TB" or thermistors "TP" Interference emission EN 61000-6-3 Interference immunity EN 61000-6-2 Parallel operation of several motors is not allowed Max. length of contoller(poti) cable 100m Max. length of motor cable 10m (screened) Please note: Not suitable for external rotor motors When operating with Explosion proof fans the FRQ has to be placed outside the EX zone!