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OMG, it's like you're living in my head right now. I have been reading about these things since yesterday and very interested to read what people respond with.
If it's possible, it really seems like the fuel pump relay would benefit the most from this, but maybe there are others that are as, or more critical. I just know that pulling that particular relay on my S4 sucks for access.
ETA: While the Hellas that you linked to at Amazon are relatively common, Wurth Electronik also makes a 5 pin solid state version, with the 87 and 87a terminals, in various amp ratings and NO and NC flavors. However, I have not been able to find a vendor online that offers the Wurth products.
Cheers
Last edited by Zirconocene; 12-09-2021 at 03:32 PM.
Found this review for the Hella SSR on the jungle website. My take, if you're burning through traditional relays something else is wrong with the system, too much load, etc. I've got about 10 cars I care for and I seldom replace a relay, it happens but it's rare. I also like the audible click that can aide with diagnostics.
@icsamerica : This article (https://dsportmag.com/the-tech/educa...motive-relays/) seems to indicate that proper wiring might help to mitigate adoption of these relays. Of course, it seems like it would not then be backward compatible with the electromechanical types.
Maybe/hopefully someone like @Alan can chime in. I don't even play an EE on TV.
Found this review for the Hella SSR on the jungle website. My take, if you're burning through traditional relays something else is wrong with the system, too much load, etc. I've got about 10 cars I care for and I seldom replace a relay, it happens but it's rare. I also like the audible click that can aide with diagnostics.
That doesnt make sense..it -is- the same 1A configuration...and has plenty of trigger current to it...
There is nothing wrong with SSL- that is the way the process industries went some 25 years ago when relay logic more or less went defunct overnight due to the added reliability SSL has when protecting millions of dollars worth of assets. That being said the stock relays are reliable and cheap as chips so why bother? I rate them for 20 years of service then replace them for the operationally critical ones at least.
OMG, it's like you're living in my head right now. I have been reading about these things since yesterday and very interested to read what people respond with.
If it's possible, it really seems like the fuel pump relay would benefit the most from this, but maybe there are others that are as, or more critical. I just know that pulling that particular relay on my S4 sucks for access.
ETA: While the Hellas that you linked to at Amazon are relatively common, Wurth Electronik also makes a 5 pin solid state version, with the 87 and 87a terminals, in various amp ratings and NO and NC flavors. However, I have not been able to find a vendor online that offers the Wurth products.
Cheers
Now you are in my head. I was thinking the same thing. Solid state relays seem the way to go. Would you mind sharing posts of the relays you found?
The one question I have is about amp ratings. While the '53" relays all use a 40amp rating relay the stuff they switch are far lower than 40amp. would it be wise to use a relay amp rating that matched the fuse rating on the circuit?
Now you are in my head. I was thinking the same thing. Solid state relays seem the way to go. Would you mind sharing posts of the relays you found?
The one question I have is about amp ratings. While the '53" relays all use a 40amp rating relay the stuff they switch are far lower than 40amp. would it be wise to use a relay amp rating that matched the fuse rating on the circuit?
That might be more rush current, but the SS ones can do large rush currents as well.
The advantage of SS relays is that they fix the primary problem with mechanical ones, which is that they arc a little bit when they open and close, which damages the contacts leading to degradation over time.
12-09-2021, 03:18 PM
Relay question...OE -vs- Solid State
