SSR for linear actuator control vs electromagnetic relay

Other Hardware Motors, Mechanics, Power and CNC
1

Hello, could any helpful person please tell me what would be the solid state relay equivalent of a electromagnetic relay with 3 output pins (NO / C / NC) as I'd like to use two SSRs for open/closing of a linear actuator. I can find these easily with electromagnetic relays (see link below) but would like to achieve the same with two SSRs. I ordered some but on arrival found they only have 2 output pins connecting/disconnecting them. Whereas I'd like a SSR with 3 output pins. Thank you in advance

This is the electromagnetic relay I'd like to emulate with a SSR

2

Use 2 SSRs = 1 relay, driven by complementary outputs from processor. One NC, one NO. Insert short delay in code to make sure they aren't both on at the same time.

3

thank you, that's certainly one solution so thank you for taking the time to respond. However if there was the equivalent of the electro relay with the two 'circuits' combined that would be better from a wiring and space/aesthetic perspective - does such a SSR exist?

4

You can google too...

5

Well aware of that. If I knew what to google I wouldn't have needed to post here

6

Changeover SSR? Dpdt SSR? If you're mainly concerned to save space then buy SSR as components rather than in a module. RS sell them for example.

Or you could find out what the description of of the EM relays you are using (DPDT etc) and use that as a search term with SSR.

7

Pleas post schematics showing how You use the relay. That would make the big picture more clear.

1 Like
8

Is this a DC actuator? If so, you need an electronic H-bridge, not an SSR.

9

DC SSRs are available.

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