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POWER SUPPLY
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CONNECTING YOUR COMPRESSOR TO A POWER SUPPLY
A separate electrical socket should be used for your machine. The circuit should not be less that a 13 amp
ring main which should be protected by a 30 amp fuse or miniature circuit breaker rated at 30 amps. If an
extension cable is used, use only 3-core extension leads with 3-pin sockets which will accept the
machine’s plug. For distances up to 100 feet use 16 gauge .064 = 2.5mm wire: for distances up to 150 feet
use 14 gauge .080 = 3.0mm wire. A qualified electrician should replace or repair damaged or worn cables
immediately.
Before connecting the motor to the power supply, make sure the switch is in ‘OFF’ position and that the
electric current is of the same characteristics as stamped on the motor rating plate. All cable connections
should make good contact. Running on low voltage will damage the motor. See extension lead chart
below.
WARNING
Single phase 230 volt machines must be connected using the relevant coding and matching the colour of
the flexible cable to that of the plug.
The procedure is as follows:
1. Connect green and yellow coloured core to the plug terminal marked letter ‘E’ earth symbol or
coloured green or green and yellow.
2. Connect brown coloured core to plug terminal marked letter ‘L’ (live).
3. Connect blue colour core to plug terminal marked letter ‘N’ (neutral).
N.B. Three phase machines must be connected by a qualified electrician.
EXTENSION LEAD CHART:
Extension lead sizes shown assure a voltage drop of not more than 5% at rated load of tool.
3 6 10 13
Extension cable length Wire Size mm
2
7.5m 0.75 0.75 1.0 1.25
15m 0.75 0.75 1.0 1.5
22.5m 0.75 0.75 1.0 1.5
30m 0.75 0.75 1.25 1.5
45m 0.75 1.25 1.5 2.5
Ampere rating
(on Name plate)
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