In message , ARW
writes


If it matters the CU is a Crabtree Starbreaker with a single 80A
switch/30mA RCD and 14 MCBs and a DIN mount bell transformer.



Apart from the cost, am I crazy?

Bill.

Whip off the front cover and take a photo of the inside of the CU. That
looks like the SB6000 and you cannot get single module RCBOs for that model.
And it would be cheaper to replace the CU considering Crabtrees prices.


There should be one at

http://s117.photobucket.com/user/G8I...zps52f6bcf2.jp
g.html

If I do end up having to use something else do you recommend any one in
particular?
--
Bill