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Optional special versions

Information on pictograms

Speed signal

The fan uses a separate wire to output information

about its speed, and thus about the speed of the rotor.

For technical details, please refer to page 110.

On the pages of the catalogue and on the following overview pages, the pictograms illustrated below provide information about technically possi-

ble special versions in the fan line presented.

Please note that these special versions are not possible for all voltages and speeds, and not in all combinations.

The special versions are designed for specific customers and projects and are not usually available off the shelf.

Go / No-go alarm

The fan uses a separate wire to output a static signal

when it is stationary, thus providing information about

whether or not the rotor is turning. For technical

details, please refer to page 117.

Alarm with limit speed

If the speed drops below a certain level defined in the

fan's electronics, the fan will emit a static signal, thus

providing information about whether or not the rotor is

turning. For technical details, please refer to page 114.

External temperature sensor

An NTC is connected to the fan via a separate wire and

the fan changes its speed depending on the temperatu-

re at the NTC. For technical details, please refer to

page 120.

Internal temperature sensor

In this case, the NTC is integrated into the fan and the

fan changes its speed depending on the temperature at

the NTC. For technical details, please refer to page

120.

PWM control input

The speed of the fan can be changed via a pulse-width-

modulated signal. This signal is applied to a specially

provided wire. For technical details, please refer to page

121.

Analogue control input

The speed of the fan can be changed via a control volta-

ge. This control voltage is applied to a specially provided

wire. For technical details, please refer to page 121.

Protection against moisture

Protection for the fan's electronics against moisture and

condensation. For technical details, please refer to page

123.

IP 54

Protection of motor and PCB board against splashed

water and humidity. For technical details, please refer to

page 123.

Protection against salt spray fog

Protection of fan against the damaging effects of salt

spray fog. For technical details, please refer to page

123.

TT

II

PWM

A

HHPP

IP54

IP54

Û

SSPP

Multi-option control input

The fan has a control input that the user can trigger eit-

her using a PWM signal, an analogue signal or a

resistor. For technical details, please refer to page 122.

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