RCCBs, main switch and MCBs (Longbarn WA2)

These came from a working distribution board that has been upgraded. Useful as spares or replacement for failed devices?
1 x 100A main switch
2 x 63A, 30mA RCCB
4 x 32A B32 MCBs
3 x 20A B20 MCBs
2 x 16A B16 MCBs
2 x 6A B6 MCBs