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Budzu · 03-27-2010, 01:16 AM

I may have killed one... one of the 40a chinese SSR's. My control wiring is correct, and I'm able to switch it on and off with a dc voltage, but the load terminals, marked 1 and 2, does it matter which one is incoming and which one is outgoing? I ran from source into #1 and out of #2 to my heating element.

Thanks in advance!

samc · 03-27-2010, 02:06 AM

Don't think it matters, it's just like a plain old light switch and your just completing a circuit.

**kladue** · 03-27-2010, 02:10 AM

The in/out on AC side does not matter, you can not kill it that way so RDWHAHB. Of more importance is the place waste heat can go, I hope it is tranferring heat to enclosure wall or heat sink so the internal devices dont get too hot, 140 degrees is as hot as you want to go.

**passedpawn** · 03-27-2010, 02:25 AM

Doesn't matter unless it was a DC SSR, in which case it will be marked with a (+) and (-) on the SSR.

Budzu · 03-27-2010, 02:51 AM

I expected as such, that it did not matter and that it was merely joining a circuit.
It is screwed to a heatsink and joined with arctic silver compound.
Ever since it switched that first time with the load connected, it is dead as far as I can tell. Total bummer. It behaved perfectly as expected before the loads were connected, and I was able to adjust pwm width and everything, with appropriate response from the light on the ssr. This is all without temp input with bcs-460. I used manual mode and duty cycle adjustments. I am supplying power from a 30 amp supplementary breaker to a 5500 watt element.
The SSR does not show + and - on the load terminals. Here it is: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=370345623698 err yes it is DC... I may have screwed up there.. Can I kill it in this way?
Now its just stuck on

**kladue** · 03-27-2010, 03:40 AM

Uh Oh, looks like you will be shopping for an AC SSR, unfortunately the transistors and power FET's in DC SSR's dont play well with AC. What is the max load this device will see?, size the replacement at least 150% of continous load to reduce the heating effects when switching the larger loads, especially if it is inside the enclosure.

Budzu · 03-27-2010, 05:20 AM

Yep, I misread the ad and interpreted the dc as the coil voltage, but it actually says up to 220v DC LOAD. I guess it just couldn't take the 23 amp AC current. I'll be rebuying, this time from somewhere that doesn't take 3 weeks... yep I hope auber's ssr's fit on these heatsinks. That's ok though, in the meantime I'm going to brew a batch on 100% power

5500 watt in 14 gallon is quite powerful.
Thanks for the help all, I just made a silly mistake that cost me about 3 weeks wait.

the_Roqk · 03-27-2010, 12:10 PM

Budzu go get yourself one of these or maybe an extra one for backup: http://www.auberins.com/index.php?main_page=product_info&cPath=2&products_ id=30

willynilly · 03-27-2010, 12:33 PM

Quote:

Originally Posted by Budzu

Yep, I misread the ad and interpreted the dc as the coil voltage, but it actually says up to 220v DC LOAD. I guess it just couldn't take the 23 amp AC current. I'll be rebuying, this time from somewhere that doesn't take 3 weeks... yep I hope auber's ssr's fit on these heatsinks. That's ok though, in the meantime I'm going to brew a batch on 100% power

5500 watt in 14 gallon is quite powerful.
Thanks for the help all, I just made a silly mistake that cost me about 3 weeks wait.

Be aware... at that wattage and resulting BTU output, you will be boiling off about 17.5 pounds of water per hour. This comes out to about 2.1 gallons. I have 9000W in my kettle right now, but I only run it at about 4000W for a 13 gallon boil.

Just so you can plan for it

Budzu · 03-27-2010, 01:06 PM

The Roqk, that's the one I'll be using. Does anyone have both of the ssr's? Auber's and the ebay seller's? Can you tell me if the mounting holes are spaced the same? I'm hoping to put it on the same heatsink.
Yeah willy, I test heated some water, filled the keggle to the brim (about 14.5g) and I got from 45 to 170 in 50 minutes, 170 to raging boil in 15 more. And that boil is truly raging.