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DIY Forum >> Electrical Questions >> SHOP DOORBELL https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1437747603 Message started by scotspark on Jul 24th, 2015, 3:20pm |
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Title: SHOP DOORBELL Post by scotspark on Jul 24th, 2015, 3:20pm Shop door bell customer walks in opens door magnetic contact makes doorbell dings, door closes door contact breaks doorbell dongs. but sometimes contact not breaking. to much current for an alar contact? |
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Title: Re: SHOP DOORBELL Post by Lectrician on Jul 24th, 2015, 3:41pm Too much current IMO. Replace contact, use a relay. |
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Title: Re: SHOP DOORBELL Post by scotspark on Jul 24th, 2015, 3:46pm that's what I guessed :-/ im away tonight so will need to wait till im back :-/ |
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Title: Re: SHOP DOORBELL Post by baz on Jul 25th, 2015, 8:30pm Most of those alarm switch contacts are rated at 0.5amp resistive. Ding dong bell transformers are rated at 1amp and need most of that (if you've tried adding a second bell you'll know what happens). Also the bell will be a tad inductive. Something like this, would hack it https://www.tlc-direct.co.uk/Products/FM143W.html |
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Title: Re: SHOP DOORBELL Post by scotspark on Jul 30th, 2015, 12:43pm Unfortunately die squibs both ways |
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