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they are 65 ma each fuse in the alarm panel is 3 amp would say cable run is around 30 meters u think this will work??

ok and what if it cant how hard is it to upgrade the power supply and whats involved

hi i have got a fire alarm system which includes 1 magnetic door holder now my question is can i just run a cable from this door holder to another one surely its just a case of running a 2 core cable thanks in advance