25a 30ma 2 pole, 2-module RCD

Consumer Units, Switchfuses And Isolators -> Chint Consumer Units -> Chint RCDs and RCBOs -> 25a 30ma 2 pole, 2-module RCD

Click for larger picture

RCDs (Residual Current Device) sometimes called RCCBs

RCDs available in 25a to 100a versions, 30ma to 100ma 2 pole versions.

RCDs monitor neutral and earth for an imbalance which would normally indicate a leakage to earth. Once this exceeds a pre-determined amount the RCD will trip. It is important to note that they are designed to operate within a percentage amount of the RCDs maximum sensitivity and not run right up to the maximum sensitivity shown on the RCD.