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smellysell · 04-02-2011, 03:11 PM

Yeah, it was bad. One whole corner of it was melted.

nevertrustahipie · 04-04-2011, 11:08 PM

you really should fuse the SSR (as well as just about everything else). That way when something like this happens again, you only have to replace an el cheapo fuse. As well as preventing fire or injury.

smellysell · 04-05-2011, 04:32 AM

Quote:

Originally Posted by nevertrustahipie

you really should fuse the SSR (as well as just about everything else). That way when something like this happens again, you only have to replace an el cheapo fuse. As well as preventing fire or injury.

:goodposting:

I'll be doing this just as soon as I figure out how to figure out what size fuses I need.

nevertrustahipie · 04-05-2011, 11:22 AM

What is the SSR rated for?

smellysell · 04-05-2011, 11:29 PM

40 amps

Inodoro_Pereyra · 04-06-2011, 12:42 AM

If I were you, I wouldn't calculate the fuse to the SSR Amp rating, but to the load.
Keep the load to a maximum of .707 the SSR Amp rating (which, for a 40A SSR, means 28.28A tops), and calculate your fuse for 1.42 the effective load or higher. For example, if you have a 20A load, your fuse should be 20x1.42=28.4A, so you're gonna need a 30A fuse.

smellysell · 04-06-2011, 12:53 AM

I have about an 18 amp load.

smellysell · 04-06-2011, 02:49 AM

Quote:

Originally Posted by smellysell

I have about an 18 amp load. Will 30 amp fuses work?

For some reason the second sentence didn't post so I fixed it above.

samc · 04-06-2011, 02:55 AM

Before spending your $$ on fuses, you might want to read this http://www.ciicontrols.com/hints/ssrhints.htm

Inodoro_Pereyra · 04-06-2011, 04:29 AM

Quote:

Originally Posted by smellysell

I have about an 18 amp load. Will 30 amp fuses work?

Yeah, with 30A you're good. With that, you will have adequate protection on the whole circuit, plus, since the current through the SSR will never reach its maximum rating, the SSR itself will be protected.