SSR testing question

[Windsors]

Working on my control box for an all electric HERMS system and have been testing stuff before I give it the full power.

My question involves how to test the SSR's. I have 3 of them, one 10 amp SSR for the pump and 2 - 50 Amp Crydom SSR's for the BK and HLT 5500W elements. I was trying to test the 50 Amp SSR's with a 120 v hot leg, a ground and a voltmeter. The problem was that it read 120 Volts when it was not receiving the low voltage signal and should have been open (off).

I am wondering if these SSR's have leakage and because of that, I need a load to draw some real AMPS, to actually see switching of the SSR.

Any thoughts.

Thanks in advance and let me say, that I have learned a lot from this forum on putting together my all grain setup.

Bill

 

[IrregularPulse]

Can you post your SSR info?

 

[samc]

I am wondering if these SSR's have leakage and because of that, I need a load to draw some real AMPS, to actually see switching of the SSR.

I remember reading something to that effect on the BCS control forum.

http://forum.embeddedcontrolconcepts.com/viewforum.php?f=4

 

[Windsors]

IP - I purchased them from Graingers. It is a Crydom D2450, 50 Amp, max 240 V output and 3-32 V DC input. here is the page...

http://www.grainger.com/Grainger/items/1DTF2

Thanks

 

[CodeRage]

It needs a load. otherwise it will bleed voltage across the triac. Doesn't need to be a big load either.

 

[jkarp]

Use a 120V lamp to test the load side of the SSR.

 

[Windsors]

Thanks for the replies. I feel better now and should be ready for my Saturday brew.