Miller Electric 251 NT manual Selecting Weld Cable Sizes, Remote 14 Receptacle Information

Models: 251 NT

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4-7. Selecting Weld Cable Sizes

 

 

 

Total Cable (Copper) Length In Weld Circuit Not Exceeding

 

 

 

 

 

 

 

 

 

 

 

 

Welding

100 ft (30 m) Or Less

 

150 ft

200 ft

250 ft

300 ft

350 ft

400 ft

 

(45 m)

(60 m)

(70 m)

(90 m)

(105 m)

(120 m)

Amperes

 

 

 

 

 

 

 

 

 

 

 

 

 

10 – 60%

60 – 100% Duty

 

 

10 – 100% Duty Cycle

 

 

 

Duty Cycle

Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

4

4

 

4

3

2

1

1/0

1/0

 

 

 

 

 

 

 

 

 

 

150

3

3

 

2

1

1/0

2/0

3/0

3/0

 

 

 

 

 

 

 

 

 

 

200

3

2

 

1

1/0

2/0

3/0

4/0

4/0

 

 

 

 

 

 

 

 

 

 

250

2

1

 

1/0

2/0

3/0

4/0

2-2/0

2-2/0

 

 

 

 

 

 

 

 

 

 

300

1

1/0

 

2/0

3/0

4/0

2-2/0

2-3/0

2-3/0

 

 

 

 

 

 

 

 

 

 

350

1/0

2/0

 

3/0

4/0

2-2/0

2-3/0

2-3/0

2-4/0

 

 

 

 

 

 

 

 

 

 

*Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere. Contact your

distributor for the mm2 equivalent weld cable sizes.

S-0007-E

4-8. Remote 14 Receptacle Information

NOTE

Engine runs at weld/power speed whenever a device connected to the remote 14 receptacle is running.

A

J

B

K

I

 

 

C

L N

H

D

M

G

 

E

F

ST-801 943-B

 

Socket*

Socket Information

24 VOLTS AC

A

24 volts ac.

 

 

 

B

Contact closure to A completes 24 volt ac contac-

 

 

tor control circuit. Protected by circuit breaker

 

 

CB5.

115 VOLTS AC

I

115 volts ac.

 

 

 

J

Contact closure to I completes 115 volt ac contac-

 

 

tor control circuit. Protected by circuit breaker

 

 

CB6.

 

C

0 to +10 volts dc output to remote control.

A/V

D

Remote control circuit common.

AMPERAGE

 

 

VOLTAGE

E

0 to +10 volts dc input command signal from

 

 

remote control.

 

G

Circuit common for 24 and 115 volt ac circuits.

GND

K

Chassis common.

 

*The remaining sockets are not used.

OM-486 Page 16

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Miller Electric 251 NT manual Selecting Weld Cable Sizes, Remote 14 Receptacle Information, 100 ft 30 m Or Less