Hi all,
I needed to replace an MCB for an electric shower with a different rating, it's an older Loadstar consumer unit, and crabtree told me word for word that the new loadstar MCBs are compatible with all the older loadstar boards, I am not sure I agree. Pictures below for your thoughts please:
![[ElectriciansForums.net] Crabtree loadstar breaker compatibility](https://www.electriciansforums.net/attachments/screenshot_20231206_140019_gallery-jpg.112094/ "[ElectriciansForums.net] Crabtree loadstar breaker compatibility")
![[ElectriciansForums.net] Crabtree loadstar breaker compatibility](https://www.electriciansforums.net/attachments/screenshot_20231206_140022_gallery-jpg.112095/ "[ElectriciansForums.net] Crabtree loadstar breaker compatibility")
![[ElectriciansForums.net] Crabtree loadstar breaker compatibility](https://www.electriciansforums.net/attachments/screenshot_20231206_140024_gallery-jpg.112096/ "[ElectriciansForums.net] Crabtree loadstar breaker compatibility")
![[ElectriciansForums.net] Crabtree loadstar breaker compatibility](https://www.electriciansforums.net/attachments/screenshot_20231206_140027_gallery-jpg.112097/ "[ElectriciansForums.net] Crabtree loadstar breaker compatibility")
When the busbar is tightened in the new one is out of line at the back, so doesn't clip onto the DIN rail properly, and is knocked out of line at the top so the case won't go on right! Anyone come across this before?
Cheers
I needed to replace an MCB for an electric shower with a different rating, it's an older Loadstar consumer unit, and crabtree told me word for word that the new loadstar MCBs are compatible with all the older loadstar boards, I am not sure I agree. Pictures below for your thoughts please:
When the busbar is tightened in the new one is out of line at the back, so doesn't clip onto the DIN rail properly, and is knocked out of line at the top so the case won't go on right! Anyone come across this before?
Cheers
