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Sticking Relays, Recomendations


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eddieschopshop 
Member - Posts: 7
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Joined: January 31, 2017
Location: Texas, United States
Posted: February 03, 2017 at 1:02 PM / IP Logged Link to Post Post Reply Quote eddieschopshop
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?
the12volt 
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Joined: March 07, 2002
Location: Louisiana, United States
Posted: February 03, 2017 at 1:09 PM / IP Logged Link to Post Post Reply Quote the12volt
1. Tyco (formerly Bosch) or Potter & Brumfield.
2. No.
Sticking Relays, Recomendations -- posted image. the12volt • Support the12volt.com
eddieschopshop 
Member - Posts: 7
Member spacespace
Joined: January 31, 2017
Location: Texas, United States
Posted: February 03, 2017 at 1:16 PM / IP Logged Link to Post Post Reply Quote eddieschopshop
10-4 thanks for quick reply..
mpheyse 
Member - Posts: 4
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Joined: February 21, 2017
Location: Michigan, United States
Posted: February 21, 2017 at 3:03 PM / IP Logged Link to Post Post Reply Quote mpheyse
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.
eddieschopshop 
Member - Posts: 7
Member spacespace
Joined: January 31, 2017
Location: Texas, United States
Posted: February 22, 2017 at 8:30 AM / IP Logged Link to Post Post Reply Quote eddieschopshop
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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