SPDs

I'm sure they were a bit hacked off about it however surely it all comes down to how much room is available in the unit after all if the spd is say 3 ins tall and you've only got say 1 inch spare space it ain't gonna fit

Wylex do a SPD that can be connected directly after the meter. It’s part number is REC2 SPD and combines a 100a isolator.


it looks like <125A, no Protective device is required up stream.


TLC link:

https://www.tlc-direct.co.uk/Products/WYREC2SPD.html?source=adwords&ad_position=&source=adwords&ad_id=315107931576&placement=&kw=&network=u&matchtype=&ad_type=&product_id=WYREC2SPD&product_partition_id=576185600782&version=finalurl_v3&gclid=EAIaIQobChMI5oLF8uDi5AIVGIjVCh1sTAolEAsYASABEgJs9vD_BwE

whjohnson:

Just seen a video where the SPD company - that's the name - state that their units are fine to use with any brand of consumer unit. Reason? Because SPDs are passive components.

This was at last week's ELEX show. The guy on the Hager stand next door was not best pleased to hear it!

Indeed SPD's have no moving parts, but they can and DO dissipate heat, even in normal use (assuming they're using NTC based technology, if gas discharge, then maybe not)... but all will dissipate LARGE amounts of energy when doing their job and dissipating a surge. This would have to be taken into account in the design of the CU and other accessories (breakers, switches, contactors, timers etc.)


How they can claim they're suitable for ANY cu, i am not sure. Not surprised the Hager chap's feathers were ruffled.

I think he was most probably miffed about the fact that SPD products are significantly cheaper than his and he can see his overgrown margins slipping away.

Considering that these things comprise of a couple of jellybean parts priced individually at jelly bean prices - see RS components for costs - I'm surprised that these thing cost  more than a fiver each..