Why in the SS relay the connection line 1 and 2 appear a altern symbol, can I use to connect a DC line ?
The symbol above 24~380VAC is a capacitor ?
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\$\begingroup\$ Did you read the datasheet? \$\endgroup\$– HuismanCommented Mar 10, 2020 at 14:01
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\$\begingroup\$ I read another datasheet for SSR 3P, always says three phase motor in schemtics of wiring. I dont know if I can connect a DC \$\endgroup\$– BestProgrammerEverDxCommented Mar 10, 2020 at 14:04
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1\$\begingroup\$ Why did you read a datasheet for SSR 3P? It something else than your question shows... Or did you post some random image and left the relevant information (being: "you want to use a SSR 3P") out of your question? \$\endgroup\$– HuismanCommented Mar 10, 2020 at 14:40
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2 Answers
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The '~' (tilde) symbol tells you that it is for AC. Internally it is using a triac and these are only suitable for AC switching.
The -| |- symbol represents a normally open contact and is common on North American electrical schematics.
The 24-380VAC text indicates that it is rated for switching voltages in that range (which excludes DC).
Counterfeit Fotek SSRs
It appears that you are considering Fotek SSRs. Read this first: UL warns of solid state relay with counterfeit UL Recognition Mark (Release 13PN-52).
See also Big Clive's Teardown of an eBay 25A Solid State Relay (SSR).
answered Mar 10, 2020 at 14:04
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\$\begingroup\$ They have a DC variant as well... \$\endgroup\$– HuismanCommented Mar 10, 2020 at 14:07
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\$\begingroup\$ I know, but that wasn't the question. d:^) \$\endgroup\$ Commented Mar 10, 2020 at 14:08
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\$\begingroup\$ the question is...Can I use a SSR 3P to switch three beacon 24 vdc :/ \$\endgroup\$ Commented Mar 10, 2020 at 14:19
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1\$\begingroup\$ No, that is not the question. Read your question again. There is no mention of SSR 3P and there is no mention of 24 V DC beacons. Your question was, "Can I use this SSR to switch DC"? The answer is no. \$\endgroup\$ Commented Mar 10, 2020 at 15:07
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From the datasheet (I leave you the effort to find the datasheet):
