RCD trip times
- Thread starter Mike2007
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200 or 300ms at 1x and 40ms at 5x.
200ms= BS4293 ie older RCD's.
300ms= BSEN 61008 or BSEN 61009, ie newer RCD's and RCBO's.
200ms= BS4293 ie older RCD's.
300ms= BSEN 61008 or BSEN 61009, ie newer RCD's and RCBO's.
When you say expected do you mean in what time do they normally trip?
If so - anything between 5mS and 30mS
If so - anything between 5mS and 30mS
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Sorry, I should have said a maximum of 40 or 200 or 300ms.
But as EFLI implies, the actual recorded figure varies from unit to unit and from manufacturer to manufacturer.
But as EFLI implies, the actual recorded figure varies from unit to unit and from manufacturer to manufacturer.
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I normally find tripping times will vary from installations to installation, but something like 20ms-30ms @ 1xI∆n and 7ms-16ms @ 5xI∆n.
But that's just ball park I have had it when there has been very little difference between the 1xI∆n and 5xI∆n
But that's just ball park I have had it when there has been very little difference between the 1xI∆n and 5xI∆n
Was that RCBOs? They seem like that.
No, I have had close measurements on 30mA RCDs, looking at recent test results there was one RCD giving the following
I∆n 28.4m and 5xI∆n 22.5ms
I∆n 28.4m and 5xI∆n 22.5ms
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