Post a reply to the thread: Voltage Changeover on Hobart TR 300
You may choose an icon for your message from this list
Please enter the name by which you would like to log-in and be known on this site.
Please enter a password for your user account. Note that passwords are case-sensitive.
Please enter a valid email address for yourself.
A) Welding/Fabrication Shop B) Plant/Production Line C) Infrastructure/Construction/Repair or Maintenance/Field Work D) Distributor of Welding Supplies or Gases E) College/School/University F) Work Out of Home
A) Corporate Executive/Management B) Operations Management C) Engineering Management D) Educator/Student E) Retired F) Hobbyist
Will turn www.example.com into [URL]http://www.example.com[/URL].
Re: Voltage Changeover on Hobart TR 300 To be a AC welder it needs single phase. But back 1960's a lot of shops had 480 volts only. I had T300 on 480volts work great for hard facing. Dave Originally Posted by Broccoli1 another old post about the machine https://weldtalk.hobartwelders.com/f...rmation-wanted
Re: Voltage Changeover on Hobart TR 300
Re: Voltage Changeover on Hobart TR 300 another old post about the machine https://weldtalk.hobartwelders.com/f...rmation-wanted
Re: Voltage Changeover on Hobart TR 300 According to this name plate they are Single Phase BUT can be 230v/460/575v https://weldtalk.hobartwelders.com/f...-hobart-tr-300 Hobart might be able to provide a manual if you contact them. It's too old for it to be in the On Line manuals though.
Re: Voltage Changeover on Hobart TR 300 I'm not sure. I thought it was 3 phase. However I've read that it is single phase. I think it can be either.
Re: Voltage Changeover on Hobart TR 300 Lemme look,,, what phase is this machine. Hobart has a good website and forum too.
Re: Voltage Changeover on Hobart TR 300 Originally Posted by buildhauer Greetings I'm new to the forum but am hoping that someone out there can help. I purchased a Hobart TR 300 arc welder but it didn't have a manual. So I contacted Hobart and they were able to find one and send it out. My problem is that I want to switch it to 460 volt and the voltage change over diagram is there but the connections diagram isn't. So when it says change positions of lead No. 3 and white lead, I've got no clue what there talking about. So if anyone can help in this mater, it would be much appreciated. I realize this is quite an old post. However, it you or someone who can help would help , I'd be very grateful. I have not been able to find a manual for my TR-300 . All I need at the moment is the voltage change diagram. I'm sure you got yours taken care of. But if not , I can help you with the wire numbers. My wires are labeled. I really could use the complete manual for future issues. Or at least a circuit diagram.
Voltage Changeover on Hobart TR 300 Greetings I'm new to the forum but am hoping that someone out there can help. I purchased a Hobart TR 300 arc welder but it didn't have a manual. So I contacted Hobart and they were able to find one and send it out. My problem is that I want to switch it to 460 volt and the voltage change over diagram is there but the connections diagram isn't. So when it says change positions of lead No. 3 and white lead, I've got no clue what there talking about. So if anyone can help in this mater, it would be much appreciated.
Voltage Changeover on Hobart TR 300
Forum Rules
