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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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OT - toggle switch current rating
I'm in the process of modifying an electric clothes dryer. I want to
switch 21A, 240v current, but I don't have, and can't find, a switch with that capacity. But, as I understand it, switches are rated for the current that they can *break*. My application will never require the switch to break the current - that will be done by the dryer's timer. Also, in a closed-contact situation, I'm thinking that paralleling 2 sets of contacts will double (more or less) the current capacity. So, if I use a 2 pole 15A rated switch, parallel its poles, & never break the current with it, could it carry 21A? Thanks, Bob |
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