Eaton MCB 1P 4A C 10kA

Further reading

Consumer units and fuse boards in Ireland: Hager SBE8101SPD consumer unit

Consumer Units and Fuse Boards in Ireland: Choosing a Board, Including Garages and Outbuildings

Fuse board, consumer unit or distribution board: how to size one, what IP30, IP40 and IP65 mean, where surge protection comes in, and what Irish rules say about boards in garages and outbuildings.

RCBO vs RCD: a Hager RCD (RCCB) next to a Hager one-module RCBO

RCBO vs RCD: Which One Do You Need? (Irish Guide)

RCDs and RCBOs both trip on earth leakage, but only an RCBO also protects a single circuit against overcurrent. How they differ, how they are rated and where each fits under I.S. 10101.