sizing breaker and wire for this welding machine

[Cartoon1]

I have a Ironman 240 Welding machine. I have a 240V system. I'm thinking of putting a 50A amp breaker with #8 copper 75C rating. Information below. Should i up size the breaker for startup current? Also, should i upsize cable to #6 because it is technically 50.8 and not 50?

Performance Data:

• Rated Output: 200 A at 24 VDC, 60% duty cycle
• Open Circuit Voltage: 40 VDC
• Amperes Input at Rated Load (208 V / 240 V): 57.0 / 50.8
• KVA / KW: 11.4 / 7.1

Thank you

 

[charlie b]

Is this your own equipment?

 

[Cartoon1]

Is this your own equipment?

No, this is a owner equipment they wish to install.

 

[petersonra]

I think there are some special rules for conductor sizing for welders. I would be looking in article 630.