High peak current relay

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#1
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Hi there,

I need to find a 12Vdc coil relay with 2 separated contacts (C, NO and NC). I mean something like the RT424012 :
http://pdf1.alldatasheet.com/dat...

My problem is that this relay must be able to drive at least 50A peak currents (conductive load) and 20Α continuous current for 30 seconds.

Do you have any idea???

Michael.

Michael.

User of:
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Altium Designer

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Solid State Relay

Go electric!
Happy electric car owner / builder

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If you are making only 1 (or just a few) I agree with sgomes - SSR. If you are making higher quantities it will be far less expensive and only a bit more difficult to use a FET (DC) or SCR (AC).

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Oh, and the word you were looking for is "inductive" not "conductive". At least I hope it was just a translation error.

Go electric!
Happy electric car owner / builder

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Search for 'automotive relays'. These are sturdier than regular relays.

If you think education is expensive, try ignorance.

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Is the switched circuit AC or DC?

If it is DC, then the automotive relay is not a bad idea, though the coil current tends to be a bit high on many. You can still drive the coil with a FET from your micro, however.

Jim

 

Until Black Lives Matter, we do not have "All Lives Matter"!

 

 

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emuler wrote:
Search for 'automotive relays'. These are sturdier than regular relays.

Another vote here from me :wink:

"It is amazing what you can accomplish if you do not care who gets the credit."
-- Harry Truman
"If you can speak of technical things only in technical terms, you do not truly understand them."
~Albert Einstein

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Quote:
I need to find a 12Vdc coil relay with 2 separated contacts (C, NO and NC). I mean something like the RT424012 :

My problem is that this relay must be able to drive at least 50A peak currents (conductive load) and 20Α continuous current for 30 seconds.

http://www.partsexpress.com/pe/p...