INSTRUCTION REF: IN176
ISSUE No. 1
DATE 2.01.08
Page 36 of 59
TELEPHONE:
SERVICE (44) 01332 875665
FAX:
SERVICE (44) 01332 875536
Parry Group Limited,
Town End Road, Draycott, Derby, England DE72 3PT
www.parry.co.uk
SC3 & 5 FAN SPEED CONTROLLER INSTRUCTIONS
For fans SC3 up to 3amps and SC5 up to 5amps only
GENERAL
The units utilise triac phase cutting techniques and should be used with motors
which have been approved by the manufacturers for speed control by this
method.
Control is best achieved with propeller, axial or centrifugal fan loads where
abso
rbed power at full load corresponds to at least 90% of the motor’s capacity.
SPECIFICATION
Model Number
Maximum Continuous
Running Current
(Amps)
Fuse
Size (Amps)
SC3
3
6.3
SC5
5
10
1. The SC3 and SC5 controls are designed for continuous operation, as
shown in the above table, indicating maximum continuous load current at
40 degrees C ambient on single phase 220/240v 50Hz supply.
2. The normal equipment operating range is 0 degrees C to 40 degrees C
ambient.
3. Component temperature range is -20 degrees C to +60 degrees C.
