How to build overcurrent, overvoltage, and reverse polarity protection circuit

  1. nurhidayah
    Hello All... We need inputs from you on how to build overcurrent/overvoltage protection circuit between chiller and it's controller. Because we sometimes encountered that when chiller gets faulty during running it also damages the controller, or vice-versa. We want to put protection between controller and chiller the avoid damaging each other. The image shown is the wiring between controller and chiller. Really appreciate any inputs. Thanks.
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