pipe_bender
Senior Member
- Location
- Boston
- Occupation
- Electrician
Greetings gang I was helping out a friend who works for commercial food processing facility and they got several 'household' type ranges, the available receptacles in this place are 50 amp 240V no neutral off a hi-leg system a NEMA welder plug 6-50.
New 4-wire range receptacles could be run but its a complex run and expensive for occasional use.
My pal that is the millwright came up with this low cost under $200 'hack' he isolated the 120V loads (controls and a 40W light) and installed a 50VA 240 - 120 control transformer in each range to power these controls.
The ranges got welder cords, are tested and running fine.
They will only be used in this food processing plant.
I am wondering if there is any safety issue with the 120V transformer being so small? I thought an oven needed a neutral 70% of the circuit rating. Here is the transformer he used:
New 4-wire range receptacles could be run but its a complex run and expensive for occasional use.
My pal that is the millwright came up with this low cost under $200 'hack' he isolated the 120V loads (controls and a 40W light) and installed a 50VA 240 - 120 control transformer in each range to power these controls.
The ranges got welder cords, are tested and running fine.
They will only be used in this food processing plant.
I am wondering if there is any safety issue with the 120V transformer being so small? I thought an oven needed a neutral 70% of the circuit rating. Here is the transformer he used:
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