Residual-current device

Hello dear community, I am looking for an RCD plug, adapter, power strip.... never mind - just an RCD that trips faster than the one installed in the electrical tableaux! Purpose of the whole thing: Our outdoor socket is connected to the same RCD as the kitchen. If a light installation in the garden is triggered by snow, water... the fridge won't work either - very annoying when the garden timer or irrigation system produces a short circuit during the holidays ;-). That's why I want an RCD adapter where I can hook up all of them outside and which trips faster than the RCD in the tableaux! Unfortunately, all RCDs (including the one in our tableau) only have the value 30 mA... but there is rarely any information about the speed of tripping... Who knows what to do and can recommend something for our garden? Thanks & greetings Arcuos