October 16, 2025Oct 16 according to the cable feeding from the breaker, breaker should be rated for the same or slightly less amps than the cable specs. amps and volts, and dont use a ac breaker for DC, use a rated D C breaker
October 16, 2025Oct 16 23 hours ago, Chile m said:How to size a breakerTo give you an accurate answer you need to supply much more information. You basically asking how long is a piece of string. 1. Your power source AC or DC?2. Expected continuous power draw from source that will determine breaker size and wire size.3. The short curcuit current capability from your power source that would determine the KA rating.Or at least the spesification on the system you want to use the breaker on?
October 28, 2025Oct 28 On 2025/10/15 at 9:48 AM, Chile m said:How to size a breakerHi, Kindly follow the advices of @TaliaB and may a good attention about the quality of your breaker. If you can, take them from a recommended supplier. The chinese breakers found on aliexpress are not very good (experienced an short circuit and the breaker did'nt work well).Cheers
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