Jul 17, 2024, 10:46 PMI often get asked questions about DC circuit breakers, batteries and solar PV in off-grid systems. This short thread covers some of the most common topics. Hopefully it is useful to someone.
Feel free to contact me if you have questions and I’ll try to assist and maybe add the answers to this list.
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Jul 17, 2024, 10:48 PMWhen connecting DC MCBs to stranded cable use crimped bootlace ferrules on the cable to ensure a reliable and low impedance connection. Also ensure that the connections are properly torqued. As a guide MCBs up to 63A should be torqued to about 1.8Nm and those up to 125A 3Nm. Where possible check manufacturer’s data.
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