Extension Cords, Permanently connected machines

3. Permanently connected machines:

If the machine is intended to be permanently connected, all wiring mentioned below must be done by a qualified electrician and conform to the National Electric Code and all local codes and ordinances.

*THREE PHASE OPERATION: Three phase machines are not supplied with a power cord and must be permanently connected to a building’s electrical system. Extension cords can’t be used with a three phase machine.

*LVC MAGNETIC MOTOR CONTROL: If you purchased a machine that has a Low Voltage Magnetic Motor Control System, refer to its instruction manual for installation guidance. Some machines with LVC controllers must be permanently connected to the building’s electrical system. Some are fitted with power cords and can be plugged into the appropriate outlets.

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 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	Gauge of
Rating	Volts	of Cord in Feet	Extension Cord

0-6	240	up to 50	18 AWG
0-6	240	50-100	16 AWG
0-6	240	100-200	16 AWG
0-6	240	200-300	14 AWG
6-10	240	up to 50	18 AWG
6-10	240	50-100	16 AWG
6-10	240	100-200	14 AWG
6-10	240	200-300	12 AWG

10-12	240	up to 50	16 AWG
10-12	240	50-100	16 AWG
10-12	240	100-200	14 AWG
10-12	240	200-300	12 AWG
12-16	240	up to 50	14 AWG
12-16	240	50-100	12 AWG
12-16	240	GREATER THAN 100 FEET NOT RECOMMENDED