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Cheers, I'll try moving the MOVs to the magnet

I know what you mean with the rubber. The 600s have kiss it bearings and they're not causing any problems. The control panels have MOVs fitted at the lock outputs. I tried adding diodes at the magnets but it didn't make any difference. I might try and source a different make of magnet...

Hi, thanks for the quick reply. It's a Soyal AR 1200M magnet so that action is performed, I believe, by the rubber top of the strike plate bolt which compresses when the magnet and the plate engage. The bolt is fitted with the rubber protruding slightly. I've been doing these magnets for 5...

Hi, I have a problem with a few doors with magnetic locks. When you press the exit button you have to bump the door to get it open. This also happens with the fob when entering the building. I've checked the lock output on the control card and it drops to 0v, so no residual voltage. I've even...