The issue of selecting circuit breakers for distribution boxes
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I currently have 25 welding machines, each with a maximum current of 28A. If all 25 welding machines are connected to one main circuit breaker, what size should that breaker be?
What about the voltage? Let’s go by power then.
Is the welding machine 220V or 380V? Considering the approximate simultaneous usage rate, a 3P circuit breaker should be selected, taking into account factors such as the wiring layout as well
The welding machines operate at 380V, and around 7-8 of them are used simultaneously; the power distribution in the facility is based on the TN-S system. Do I need to use a 4P circuit breaker? What size should the circuit breaker capacity be?