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Type: Posts; User: sfriedberg

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  1. Well, that particular usage (two parallel plates...

    Well, that particular usage (two parallel plates for NO contacts) comes from ladder logic, I suspect. And has a long history here in the US, not just Eurozone.
  2. It's what I concluded back in post #6, if we are...

    It's what I concluded back in post #6, if we are talking about the same zigzags.
  3. Nah. Adding a third heater would add value only...

    Nah. Adding a third heater would add value only if you expect the heater to be the thing that catches shorts to ground. (And that's not what heaters are for.) Assuming no shorts, any current...
  4. I'd agree that zig-zags 6, 6A, 6I, and 6P are the...

    I'd agree that zig-zags 6, 6A, 6I, and 6P are the coils for the relays whose contacts are marked 6, 6A, 6I and 6P.

    I think 6EM is a control relay to convert a momentary pushbutton contact into a...
  5. RT makes me think thermal overload cutouts (aka...

    RT makes me think thermal overload cutouts (aka "heaters"). R (and also the zigzag) for resistor, T for thermal.
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