Sticking Relays, Recomendations
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=142532
Printed Date: April 30, 2024 at 2:12 AM
Topic: Sticking Relays, Recomendations
Posted By: eddieschopshop
Subject: Sticking Relays, Recomendations
Date Posted: February 03, 2017 at 1:02 PM
I am having some issues with some relays sticking in the on positions..
I bought a setup of SPDT 40 Amp Relays & Sockets from flea bay..
but 2 of the 4 installed have failed on me in the on position.
when I removed the cap to inspect them they where stuck in on position (the contacts welded together) but a slight tap and contacts got loose..
so my question is this..
1. what spdt relays do you guys recommend?
2. or shall I try to salvage these cheap relays by moding them somehow?
Replies:
Posted By: the12volt
Date Posted: February 03, 2017 at 1:09 PM
1. Tyco (formerly Bosch) or Potter & Brumfield.
2. No. -------------  the12volt • Support the12volt.com
Posted By: eddieschopshop
Date Posted: February 03, 2017 at 1:16 PM
10-4 thanks for quick reply..
Posted By: mpheyse
Date Posted: February 21, 2017 at 3:03 PM
BOSH is what I use on my vehicle.
Magnacraft (Now part of Schneider Electric) are my preferred standard circuit / machine relays.
2 NO, the contacts are junk, and can't handle the amp-arc load you giving them. So they are lightly welding them selves. Your either giving them way more than 40Amps (Inductors?) or they are not capable of handling 40 Amps when new. Now that they have been welded once, they have a much lower current rating than what they were before that event. Recommendation Disposal
Contacts cost money, so the ultra cheap ones don't come with platinum coatings.
Posted By: eddieschopshop
Date Posted: February 22, 2017 at 8:30 AM
mpheyse wrote:
BOSH is what I use on my vehicle.
Magnacraft (Now part of Schneider Electric) are my preferred standard circuit / machine relays.
2 NO, the contacts are junk, and can't handle the amp-arc load you giving them. So they are lightly welding them selves. Your either giving them way more than 40Amps (Inductors?) or they are not capable of handling 40 Amps when new. Now that they have been welded once, they have a much lower current rating than what they were before that event. Recommendation Disposal
Contacts cost money, so the ultra cheap ones don't come with platinum coatings.
thanks
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