Delta 36-851 Instruction Manual page 6

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POWER CONNECTIONS
A separate electrical circuit should be used for your machines. This circuit should not be less than #12 wire and should be protect-
ed with a 20 Amp time lag fuse. If an extension cord is used, use only 3-wire extension cords which have 3-prong grounding type
plugs and matching receptacle which will accept the machine's plug. Before connecting the machine to the power line, make sure
the switch (s) is in the "OFF" position and be sure that the electric current is of the same characteristics as indicated on the machine.
All line connections should make good contact. Running on low voltage will damage the machine.
DO NOT EXPOSE THE MACHINE TO RAIN OR OPERATE THE MACHINE IN DAMP LOCATIONS.
MOTOR SPECIFICATIONS
Your machine is wired for (see SPEC PLATE VOLTAGE), 60 HZ alternating current. Before connecting the machine to the power
source, make sure the switch is in the "OFF" position.
GROUNDING INSTRUCTIONS
THIS MACHINE MUST BE GROUNDED WHILE IN USE TO PROTECT THE OPERATOR FROM ELECTRIC SHOCK.
3. Grounded, cord-connected machines intended for
use on a supply circuit having a nominal rating
between 150 - 250 volts, inclusive:
If the machine is intended for use on a circuit that has an out-
let that looks like the one illustrated in Fig. C, the machine will
have a grounding plug that looks like the plug illustrated in Fig.
C. Make sure the machine is connected to an outlet having the
same configuration as the plug. No adapter is available or
should be used with this machine. If the machine must be re-
connected for use on a different type of electric circuit, the re-
connection should be made by qualified service personnel; and
after re-connection, the machine should comply with all local
codes and ordinances.
4. Permanently connected machines:
If the machine is intended to be permanently connected, the
machine should be connected to a grounded metal permanent
wiring system, or to a system having an equipment-grounding
conductor.
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 cor-
rect 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.
GROUNDED OUTLET BOX
CURRENT
CARRYING
GROUNDING BLADE
IS LONGEST OF THE 3 BLADES
THREE PHASE OPERATION
Three phase MACHINES are not supplied with a power cord.
They must be permanently connected to the building electri-
cal system and grounded according to the National Electrical
Code. Since they must be permanently connected to the
building electrical system, extension cords cannot be used
with three phase MACHINES.
MINIMUM GAUGE EXTENSION CORD
RECOMMENDED SIZES FOR USE WITH STATIONARY ELECTRIC MACHINES
Ampere
Rating
Volts
0-6
240
0-6
240
0-6
240
0-6
240
6-10
240
6-10
240
6-10
240
6-10
240
10-12
240
10-12
240
10-12
240
10-12
240
12-16
240
12-16
240
12-16
240
6
PRONGS
Fig. C
Total Length
Gauge of
of Cord in Feet
Extension Cord
up to 50
18 AWG
50-100
16 AWG
100-200
16 AWG
200-300
14 AWG
up to 50
18 AWG
50-100
16 AWG
100-200
14 AWG
200-300
12 AWG
up to 50
16 AWG
50-100
16 AWG
100-200
14 AWG
200-300
12 AWG
up to 50
14 AWG
50-100
12 AWG
GREATER THAN 100 FEET NOT RECOMMENDED

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