dc motor and switcn

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svtiss

New Member

• Apr 10, 2005

• #1

Hi
I am working at a project and there are is a 12v dc motor . and I need to use a switch to control the direction back and force, when the motor starts, it needs about 3 amp , how long is the switch can work before it is burnt and how to protect from the burning or I have to use dc controller ???
Thanks

 

kinjalgp

Active Member

• Apr 10, 2005

• #2

Use switch having high current rating about 5A or greater.
You can also use a relay to start/stop the motor but that does not seem necessary over here.

 

S

svtiss

New Member

• Apr 10, 2005

• #3

I dont want to use a big one , what is the limit for 3 amp start up

 

kinjalgp

Active Member

• Apr 10, 2005

• #4

svtiss said:

I dont want to use a big one , what is the limit for 3 amp start up

Click to expand...

I didn't get you.

If you don't want to use large switch go for relay solution. Use flip-flop to control the relay.

 

S

svtiss

New Member

• Apr 10, 2005

• #5

I need to go forward , back and stop , mom-off-mom