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EFSC • Electronic fan speed controllers

Electronic fan speed controllers.

Application

A range of electronic fan speed controllers designed for speed controllable single phase motors up to 16 amps. The EFSC3,5,6 & 10 all have an illuminated on/off rocker switch and a stepless rotary knob for speed adjustment.

The FSC1.5 is a single gang surface or flush mount version of the EFSC1.5

The EFSC3-N and EFSC6-N are for fan motors where the neutral is controlled instead of the live.

INSTALLATION
1. Check that the speed controller supplied is compatible with the fan.
2. Install in a dry sheltered position. Do not install in close proximity to a heat source.
3. Remove the front cover of the controller by unscrewing the fascia fixing screws. This provides access to mounting holes
and electrical terminals.

All wiring must be carried out by a suitably qualified and competent person and comply with current applicable regulations

Operation
Switch on the controller by operating the ON/OFF switch. Rotating the control knob clockwise will increase the speed of the
fan from the pre-set minimum to full speed.

Minimum speed adjustment
On certain fans the factory set minimum pre-set may need adjusting. This can be achieved by rotating the minimum trimmer
inside the speed controller clockwise to increase the minimum level

Maximum speed adjustment
This can be achieved by rotating the maximum trimmer inside the speed controller anti-clockwise to decrease the maximum
level.

Warning
Installation of the controller and adjustment of the internal minimum and maximum trimmers should be carried out with the
electrical supply isolated


Composition

  • All models supplied with surface mount backing box
  • Minimum & Maximum speed internal pre-set adjusters on all models
  • Suitable for 2 or 3 wire control
  • Electronic stepless speed control
  • Easy to install
  • FSC1.5 is a single gang surface or flush mount version of the EFSC1.5
  • EFSC 3, 5, 6 & 10 all have an illuminated on/off rocker switch and a stepless rotary knob for speed adjustment.
  • EFSC3N and EFSC6N are for fan motors where the neutral is controlled instead of the live.

Technical Data

ModelElectrical SupplyMax RatingMounting
FSC1.5230v 1ph 50hz1.5 AmpsSurface/Flush
EFSC1.5230v 1ph 50hz1.5 AmpsSurface/Flush
EFSC3P230v 1ph 50hz3 AmpsSurface/Flush
EFSC5230v 1ph 50hz5 AmpsSurface/Flush
EFSC6230v 1ph 50hz6 AmpsSurface/Flush
EFSC10230v 1ph 50hz10 AmpsSurface
EFSC3N230v 1ph 50hz3 AmpsSurface/Flush
EFSC6N230v 1ph 50hz6 AmpsSurface/Flush

Dimensions

ModelHeightWidthDepth
FSC1.5898942
EFSC1.58714746
EFSC3P8714746
EFSC58714746
EFSC61478750
EFSC1019211060
EFSC3N8714753
EFSC6N8714753

Wiring diagram 1

Notes

WIRING DIAGRAMS
All wiring diagrams show connections for 3 wire fan control:
U1: Controlled Live out to fan run winding
U2: Neutral out to fan
Aux: Maintained live out to fan capacitor

Where fan is 2 wire control (I.E. Only Live and neutral at fan terminal box omit connection Aux-CAP).
If in doubt seek fan manufacturers advice
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