Does the Maxstar 161 STL require manual linking when switching between 120V and 240V input power?
No, the Maxstar 161 STL allows for any input voltage hookup from 120–240V with no manual linking required. This provides convenience in any job setting and makes it an ideal solution for dirty or unreliable power. (Page 1)
From the official Miller Maxstar 161 STL Stick Welder manual, page 1
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