Higher voltage rating is a good thing. AC breakers are simpler because AC goes to zero volts twice each cycle. That gives it a chance for the arc to extinguish when tripping. DC has to be designed to break the arc and higher voltage arcs are harder to break. Just make sure it is rated for at least the voltage your system operates at.
I size the breaker for the size of the wire in most cases. From: Jason McKemie Sent: Friday, December 28, 2018 8:37 AM To: AnimalFarm Microwave Users Group Subject: [AFMUG] DC Breakers Do you generally size these about double the expected load? I see a lot of them rated at higher voltages than I need, will these still be effective? -------------------------------------------------------------------------------- -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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