40/60a ratings mean?

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=103084
Printed Date: May 06, 2025 at 6:14 AM

Topic: 40/60a ratings mean?

Posted By: blazin_jason
Subject: 40/60a ratings mean?
Date Posted: March 15, 2008 at 3:05 PM

I can't for the life of me find what the current ratings on a relay mean. Is it for when the relay is NO and NC, if so which number is which? Or is it like a continuous and peak sort of rating? Thanks

Replies:

Posted By: i am an idiot
Date Posted: March 15, 2008 at 3:34 PM

It would be 40Amps continuous/ 60Amps peak.

Posted By: techman93
Date Posted: March 16, 2008 at 12:49 AM

NO = normally open
NC = normally closed

the lower amperage on the nc

Max. switched current: 40 A (SPST)
(SPDT)
40 A (N.O.)
30 A (N.C.)

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The wire I'm test'n isn't doin' what it's supposed to be doin'... I am so glad I printed that tech sheet, with the wrong info.
Do it right the first time... or I might have to fix it for ya

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