RCD trip times (Table 3A)

[gazdkw82]

I'm trying to find a list of trip times for 30/100/300/500ma rcd devices to make some flash cards.

I've found table 3A but it's somewhat confusing. If I read it correct, the table suggests a 30ma rcd should trip at 10ma. I must be reading it wrong?

Anyone know how to read the table correctly?

Better still does anyone have a list of trip times ;-)

 

[SparkyChick]

Table 3A gives you the rating of the device. Then you have 3 sets of test current followed by the required trip time.

So at 30mA a 30mA RCD should trip in 300ms or less, at 60mA it should trip in 150ms or less and at 150mA, 40ms or less.

 

[gazdkw82]

Yeh that's how I read it. However if you follow that path a 30ma rcd trips under 300ms at 10ma.

I guess that is for the 10ma RCD

 

[Richard Burns]

RCD Times

 

[gazdkw82]

Am I right in thinking anything above 150ma only needs a x5 test?

 

[SparkyChick]

Am I right in thinking anything above 150ma only needs a x5 test?

You only need to perform a x5 test when the RCD is providing additional protection. So if it's being used for fire or fault, x1/2 and x1 only.