Grant,
SSR's draw very little control current. A 9-12V battery will last a
long time, and will fail "off", no resistor needed.

You don't say what you want to control, the generator must have some
control inputs, but, I'm stumped.

More info please.
Dave


On Dec 16, 8:56 pm, Grant Erwin wrote:
I'm still working on getting my idle control working on my old Miller
gas-powered welder. (Kohler 16hp motor.) The idle control module is dead,
no replacements are available anywhere I've found, but the idle solenoid
on the motor still works.

So I'm going to wire a switch velcroed to my stinger. I figure for now I'll
just run a pair of wires down each piece of welding lead, make the connections
with spade lugs, and run the wires to the input of a small relay which will
switch current on or off to the idle solenoid.

I have several identical SSRTs in my junkbox. They are Potter & Brumfield part
no. SSRT-120D10. Here is a data sheet:http://www.tinyisland.com/images/tem..._SSRT_0303.pdf

The control terminals are expecting between 8.5mA and 14mA current at between
3-32VDC. The output can carry 10 amps rms at 110VAC.

What I want to know is if I can use this in the following way:

run 12VDC to the control inputs, with 1k ohm current limiting resistor in series
switch 12VDC 2-3 amps load current

I'm certain that there is another part better suited to my requirement. My
question is whether I can make this one work.

If the output can handle 110VAC why couldn't it handle 12-14VDC?

Is a car battery through a 1kohm resistor sufficiently like a 12mA current
source?

Grant

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