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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Power switch specifications/ratings
Hello all,
Can anyone point me to an 'official' table or chart about switch ratings, such as what is the difference between a TV3, TV4 and TV5 marking on the switch? Many thanks, Tim Schwartz Bristol Electronics |
#2
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Power switch specifications/ratings
On 9/6/2016 10:53 PM, Tim Schwartz wrote:
Hello all, Can anyone point me to an 'official' table or chart about switch ratings, such as what is the difference between a TV3, TV4 and TV5 marking on the switch? Many thanks, Tim Schwartz Bristol Electronics Well, here I am answering my own question. A friend I had e-mail the same question to came up with this link from Alps: http://www.alps.com/prod/info/E/PDF/...wer/SAFETY.PDF The 3rd page has what I was looking for. Hope others find this useful too. Regards, Tim Schwartz Bristol Electronics |
#3
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Power switch specifications/ratings
Tim Schwartz wrote:
Well, here I am answering my own question. A friend I had e-mail the same question to came up with this link from Alps: http://www.alps.com/prod/info/E/PDF/...wer/SAFETY.PDF The 3rd page has what I was looking for. ** Fraid that page is highly misleading about what TV ratings mean. The "TV" code is used by UL to identify switches that have a very high inrush surge current, endurance and fire safety performance. Such switches are suited to large halogen lamp loads and devices with large iron transformers. Typical codes are TV5, TV8 or TV10 where the number refers to the steady rms on current for 25,000 operations with over 100Amp surges. See link for useful examples: http://www.nkkswitches.com/pdf/JP.pdf ..... Phil |
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