Extension Cords; 240 Volt Single Phase Operation - Delta 28-276 Instruction Manual

3. 240 VOLT SINgLE PHASE OPERATION

The motor supplied with your machine is a dual
voltage, 120/240 volt motor. It is shipped ready-
to-run for 120 volt operation. However, it can be
converted for 240 volt operation.
A qualified electrician should do the conversion, or
the machine can be taken to an Authorized Delta
Service Center. When completed, the machine must
conform to the National Electric Code and all local
codes and ordinances.
The machine is converted by re-wiring the motor
for 240 volts, installing a 240 volt plug on the power
supply cord and replacing the switch with one that is
rated for 240 volt operation.
Be sure the 240 volt plug is only used in an outlet
having the same configuration as the plug illustrated
in Fig. C. No adapter should be used with the 240
volt plug.
In all cases, make certain that
the receptacle in question is properly grounded.
If you are not sure, have a qualified electrician
check the receptacle.

EXTENSION CORdS

Use proper extension cords. Make sure your extension cord is in good condition and is a 3-
wire extension cord which has a 3-prong grounding type plug and matching receptacle which will accept the
machine's plug. When using an extension cord, be sure to use one heavy enough to carry the current of the
machine. An undersized cord will cause a drop in line voltage, resulting in loss of power and overheating. Fig.
D-1 or D-2, shows the correct gauge to use depending on the cord length. If in doubt, use the next heavier
gauge. The smaller the gauge number, the heavier the cord.
MINIMUM gAUgE EXTENSION CORd
RECOMMENDED SIZES FOR USE WITH STATIONARY ELECTRIC MACHINES
Ampere Total Length
Rating Volts of Cord in Feet
0-6 120 up to 25
0-6 120 25-50
0-6 120 50-100
0-6 120 100-150
6-10 120 up to 25
6-10 120 25-50
6-10 120 50-100
6-10 120 100-150
10-12 120 up to 25
10-12 120 25-50
10-12 120 50-100
10-12 120 100-150
12-16 120 up to 25
12-16 120 25-50
12-16 120
GREATER THAN 50 FEET NOT RECOMMENDED
Fig. d-1
gauge of Ampere
Extension Cord Rating
18 AWg 0-6
16 AWg 0-6
16 AWg 0-6
14 AWg 0-6
18 AWg 6-10
16 AWg 6-10
14 AWg 6-10
12 AWg 6-10
16 AWg 10-12
16 AWg 10-12
14 AWg 10-12
12 AWg 10-12
14 AWg 12-16
12 AWg 12-16
12-16
6 - English
GROUNDED OUTLET BOX
CURRENT
CARRYING
PRONGS
GROUNDING BLADE
IS LONGEST OF THE 3 BLADES
Fig. C
MINIMUM gAUgE EXTENSION CORd
RECOMMENDED SIZES FOR USE WITH STATIONARY ELECTRIC MACHINES
Total Length
Volts of Cord in Feet
240 up to 50
240 50-100
240 100-200
240 200-300
240 up to 50
240 50-100
240 100-200
240 200-300
240 up to 50
240 50-100
240 100-200
240 200-300
240 up to 50
240 50-100
240
GREATER THAN 100 FEET NOT RECOMMENDED
Fig. d-2
gauge of
Extension Cord
18 AWg
16 AWg
16 AWg
14 AWg
18 AWg
16 AWg
14 AWg
12 AWg
16 AWg
16 AWg
14 AWg
12 AWg
14 AWg
12 AWg