Systemair Frequency converter FRQ-4A - 208-480V, 3~, 4A, IP54, 0-10V

Speed controller with 0-10V Input 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 Analog input for external speed setting(0-10 V, 0-20 mA, PWM) 10V DC output for external potentiometer 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!