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Light grey plastic enclosure with knob Light grey plastic enclosure with knob Light grey plastic enclosure with knob Light grey plastic enclosure with knob Light grey plastic enclosure with knob
Light grey plastic enclosure with knob
Light grey plastic enclosure with knob
Light grey plastic enclosure with knob
Light grey plastic enclosure with knob
Light grey plastic enclosure with knob

3-step control switch for EC fans | OFF-position


Product description

3-step control switch with OFF-position for EC fans or damper actuators. It can also remotely control AC fan speed controllers or frequency inverters. The supply voltage is 10 VDC. The output signal is divided in 4 steps: 0 VDC and 3 other output voltages. In the OFF-position or position 0, the output signal is 0 VDC. The output signal of positions 1 and 2 can be adjusted in the range of 1 – 10 VDC via internal trimmers. The output signal of position 3 always equals the supplied voltage: 10 VDC. The splash-proof enclosure allows inset mounting (IP44) or surface mounting (IP54).


Article code SMT-D-4P-AL
GTIN 0.540.100.301.469.1
Category 3-step control switch for EC motors or damper actuators
Available
Current stock 9 U.
Factory lead time 4 Week(s)
Documents

Additional specifications and description


What is a control switch for EC fans?
The output voltage of this control switch varies according to the position of the rotary switch. The output voltage is divided in four steps. Position 0 is fixed to 0 VDC and position 3 is fixed to 10 VDC. This control switch controls EC fans or damper actuators in three steps. It can also remotely control AC fan speed controllers (EVS or MVS series) or frequency inverters (FI-E series) in four steps. E.g. the control switch can be installed in the living room while the fan speed controller is located in a technical room or electrical cabinet.

Adjustable output levels
For some applications, it is desirable to adjust the control signal in order to obtain the optimal fan speed. Position 0 is fixed to 0 VDC. The control signal of position 1 and position 2 can be adjusted. Via internal trimmers the output voltages of these positions can be set in the range of 1 – 10 VDC. Position 3 always equals the supplied voltage: 10 VDC.

OFF-position
This control switch has an OFF-position. In position 0, the output voltage is 0 VDC.