Datasheet

Product Data Sheet 2214 F/2TDHHO
01/31/2019 page 9 of 14
12A / 75V (Art.No.: 0451012.MRL)
Voltage control *) Fan turns on at U
B
> 14 V or < 40 V
Fan turns off at U
B
< 13 V or > 42 V
*) This fan has an undervoltage and overvoltage control circuit integrated which turns the motor off if the voltage is out
of range.
This fan has a startup delay of 2 seconds after applying supply voltage.
Each startup (t3) hast two steps. Positioning of the rotor (ca. 3-4s) and the actual startup (~3s).
After 4 failed start-ups there is an extended timeout of 40 seconds.
When several fans are operated together (in a fan tray) and one fan starts after the other and the starting current is
eventually limited, it can happen that the not yet operated fan is driven in reverse by the counter pressure. This can
lead to a failure of the first start-up. The fan detects this and makes another start with an increased current.
Start-up current @ 24 V (I = 1A/div ; t = 2s/div)