EC Axial fan 710mm
1.overcurrent protection
2.soft-start
3.relay alarm output
4.Speed control

 EC Axial fan 710mm (500,560,630,710mm available )

Detail description:

 1.The feature of overcurrent protection, the value of overcurrent protection is not bigger 4A when
input voltage is 230VAC 

2.soft-start function, soft-start time delay time less than 50S reached full speed

3.Active PFC: power factor≥0.99

4. circuit board over-temperature protection features

5. loss phase protection

6. loss phase protection

7. relay alarm output: when fan bus overvoltage,driver circuit over temperature ,motor
loss phase, the relay public contacts from close regular contact connect to open regular contact

8. Reverse function: the fan can be reversed ,by use of computer or other controller setting control modes

9. auxiliary power output, the output 10VDC, Max 10mA

 10. Speed control