Recommended neutral earth bond relay size?
I assume the relay or contactor should be rated according to the backup output of the inverter? E.g. - 5k ~22A: 32A or 25A relay?
- 8k ~35A: 40A relay? I've heard from an installer that the inverter, via a firmware update, can possibly do an internal relay connection? But the spec on the internal relay is too small? Hi, appreciate all the other useful posts about this. Related:
- Diagram showing relay connection: https://www.sunsynk.org/forum/techical-support/connecting-a-ct-coil-update
- Comment about installing external relay: https://www.sunsynk.org/forum/main/comment/5ed78afea77e0c0017184558
- Comment from @Keith Gough about internal relay only being 5A?: https://www.sunsynk.org/forum/main/comment/5eb3a14c138a4e0018953367
The wording on the aforementioned comment is still a bit unclear to me.
> The really is only 5 amp, dry contacts can be used for each bonding but you with need to use an additional relay ( Heavy current ) use the signal to operate the relay coil ( Its will be really easy )
The inverter outputs a 240v via a 5amp relay which can be used to power the coil of a heavy duty contactor 45 amp