I think my power company now owes me a complete refund, plus interest, for the past 34 years!AC/DC
Carling offers both AC (alternating current) and DC (direct current) switch voltage ratings. AC or alternating current is an electric current or voltage that reverses its direction of flow at regular intervals and has alternately positive and negative values, the average value of which over a period of time is zero.
From what I've read the general rule of thumb seems to be close to: ACval/5.But most of my switches that I have purchased do not specify if the ratings were either AC or DC. The ratings were 300V/16A but it is bit obviously AC. So, if we will convert it to DC, what would be the rating?
I have used that 300V/16A in most of my 12VDC projects.
Thanks!
ACval=Ac value???????????? means ac value divide to 5 and that would be the dc ratings??/From what I've read the general rule of thumb seems to be close to: ACval/5.
Yes, that's what I read. Keep in mind that the rating of switches are made with thousands and hundreds of thousands open/close cycles in mind. I would imagine that a 16A-AC switch could handle 10A for limited intermittent use. Other opinions are welcomed though.ACval=Ac value???????????? means ac value divide to 5 and that would be the dc ratings??/
For every positive voltage vs. time point on a sine wave there will be a an equal negative voltage vs. time point. Since unlike numbers (when added) subtract and since these voltages and currents are equal but opposite, the average is zero.
http://www.carlingtech.com/support/learn_more_switch.asp?page=switches_amp-rating
I think my power company now owes me a complete refund, plus interest, for the past 34 years!
Please try to keep in mind that Lightfire's world is probably nothing like yours. For him, power at the outlet is not a constant in life. Two years touring the finer locations of South East Asia gives one a different perspective. Admittedly, it was a lifetime ago but I seriously doubt that there's been an industrial revolution since I left. While I was there I saw some of the wildest examples of "Field Expedience" that I will ever see in my life time.My opinion is that if a switch has no DC rating it should not be used on a DC circuit.
That's a broad statement. Does that include lighting a LED or two? Honestly, if I had a bank of 100 (20mA) LEDs I wouldn't hesitate to use any AC wall switch (snap toggle) in my house. I figure the switch would wear out mechanically long before the contacts demise. Put a simple snubber across the contacts and I'll hang a bunch more LEDs on it.And I also agree, if it is not rated for DC then don't use it.
The original poster mentioned a 300V, 16A switch, so I assumed we were not talking about powering some LEDs.Honestly, if I had a bank of 100 (20mA) LEDs I wouldn't hesitate to use any AC wall switch (snap toggle) in my house.
This thread is a separate but continuation of another of Lightfire's topics.The original poster mentioned a 300V, 16A switch, so I assumed we were not talking about powering some LEDs.
I'm not going to get into a debate over the "Nanny State" mentality here. I'm not a big fan. As a child I played with Mercury and lived in a house with lead paint and asbestos siding. I made countless slingshots, bow and arrows and played cowboys and indians. By the age of 14 I graduated to home made gun powder. I'm still here at 65.I don't care if he is from Manilla or Manhattan. Safety should still apply. He obviously has access to the internet on a regular basis so he can't be that bad off.
But most of my switches that I have purchased do not specify if the ratings were either AC or DC. The ratings were 300V/16A but it is bit obviously AC. So, if we will convert it to DC, what would be the rating?
I have used that 300V/16A in most of my 12VDC projects.
Thanks!
That's why I told him to divide the rating by 5.And when you aren't capable of making the proper judgements on your own you must rely upon the manufacturers stated ratings.
I haven't a clue of what this means. Is it a riddle?You shouldn't judge if your circuit worked or not by "lightfire" or "no lightfire"
Actually, I am not living at Manila, I am living at Laguna. Sorry if I lied, but manila and laguna were same characteristics. i guess laguna is belong to metro manila.I don't care if he is from Manilla or Manhattan. Safety should still apply. He obviously has access to the internet on a regular basis so he can't be that bad off.
And when you aren't capable of making the proper judgements on your own you must rely upon the manufacturers stated ratings.
You shouldn't judge if your circuit worked or not by "lightfire" or "no lightfire"