diode isolate 200a relay/solenoid?

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tremors834

Member - Posts: 14

Joined: February 11, 2007

Location: United States

Posted: March 11, 2007 at 11:15 AM / IP Logged

Any reason or need to Diode Isolate the solenoid coil in the following diagram?

diode isolate 200a relay/solenoid? -- posted image.

KPierson

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This member consistently provides reliable information

Joined: April 14, 2005

Location: Ohio, United States

Posted: March 11, 2007 at 7:08 PM / IP Logged

No.

Kevin Pierson

tremors834

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Joined: February 11, 2007

Location: United States

Posted: March 11, 2007 at 8:07 PM / IP Logged

Thanks, I didn't think so but I figured I'd check after reading a post in the security forum concerning diode isolating.

KPierson

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Location: Ohio, United States

Posted: March 11, 2007 at 8:43 PM / IP Logged

You really only need the diode when you have discreet circuitry driving the coil. If you have a switch you'll be fine.

Kevin Pierson

tremors834

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Posted: March 12, 2007 at 7:24 AM / IP Logged

by "discreet" do you mean low power / sensitive electronics?

KPierson

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Posted: March 12, 2007 at 9:22 AM / IP Logged

Mostly transistors, as that is what is seen most of the time.

Kevin Pierson

audiocableguy

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Posted: March 12, 2007 at 11:38 AM / IP Logged

Moving your first 150A fuse before the solenoid instead of after might offer more protection. If something were to short agaist the solenoid terminals or changing out the solenoid you'd be covered.

tremors834

Member - Posts: 14

Joined: February 11, 2007

Location: United States

Posted: March 12, 2007 at 5:38 PM / IP Logged

audiocableguy wrote:

Moving your first 150A fuse before the solenoid instead of after might offer more protection.

Great point, Thank you. Above diagram has been updated.

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diode isolate 200a relay/solenoid?

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