VA.. Electronic speed-controller Single-phase motors only
Features
The VA range is an electronic type
speed-controller which provides infinite
variation of fan speed from 100% down
to approximately 30% of full speed.
When used to control a number of
identical fans the sum of the full load
amps of all the connected fans must not
exceed 85% of the maximum rating of
the controller. The fans should be
identical.
Power consumption is reduced by up to
70%.
The motors must be designed for speed
control.
Warning
Check with our Sales Department before
using the VA controllers with run-on
timers.
Note
To minimise electronic hum from larger
PSC (Permanent Split Capacitor) motors,
a constant active is connected to the
start winding via the capacitor and the
run winding is regulated by the speed
controller. (4 wire connection)
A PSC motor is sometimes referred to as
a Capacitor Run motor.
Technical Data
| Model Number |
Max. Amps |
On/Off Switch |
Mounting |
LED Power Light |
Dimensions, mm |
| VA2.0POT** |
2.0 |
No |
Bracket |
No |
25W × 30H × 50D |
| VA2.0 |
2.0 |
Yes |
Recess |
No |
70W × 114H × 36D |
| VA2.8 |
2.8 |
Yes |
Recess |
Yes |
70W × 114H × 36D |
| VA5.0 |
5.0 |
Yes |
Recess |
Yes |
70W × 114H × 51D |
| VA8.0 |
8.0 |
Yes |
Recess |
Yes |
70W × 114H × 51D |
| Enclosure rating - IP00 |
** The VA2.0POT unit is designed to be mounted within equipment or enclosures; e.g. HB12 Fan Header Boxes, as well as Mixvent Series duct mounted fans. It will not fit in a standard wall plate.
The VA range, being triac-type controllers, can cause an electronic hum particularly at low speeds.
The VA range is generally suitable for use with any speed-controllable single-phase motors. Ensure the motor amperage does not exceed the rating of the controller.
Wiring Diagrams
No dimension data available.
