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<blockquote data-quote="steptoe" data-source="post: 366465" data-attributes="member: 7"><p>sometimes the RCD wont trip at all,</p><p></p><p>a lot of the older Hager especially, prob &gt;80% fail on the ones I have tested, [ a few hundred]</p><p></p><p>the 2nd worst fails are the old MEM stacked boards,</p><p></p><p>btw, if the PV is switched off these RCDs are tripping normally, PV back on and they fail again,</p><p></p><p>so there is deffo something wrong,</p><p></p><p>oh, Ive also had new RCDs with the same problem, from most manufacturers.</p></blockquote><p></p>
[QUOTE="steptoe, post: 366465, member: 7"] sometimes the RCD wont trip at all, a lot of the older Hager especially, prob >80% fail on the ones I have tested, [ a few hundred] the 2nd worst fails are the old MEM stacked boards, btw, if the PV is switched off these RCDs are tripping normally, PV back on and they fail again, so there is deffo something wrong, oh, Ive also had new RCDs with the same problem, from most manufacturers. [/QUOTE]
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