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MrWizard's avatar
MrWizard
Moderator
Feb 11, 2023

Transfer switch

The transfer switch i added between the 2kw inverter. And shore cord used with the Portable generator ,
The new ts is not rv centric, has no 30 second time delay, no containment box comes with it , it switches between power inputs very fast, its rated at 63 amps @ 110v,
It uses a 110vac motor to select between power sources, Normal being the default source, and backup being the secondary input scoure, i put the inverter on the backup supply, so anytime shore cord is plugged into the generator or shore power that source gets used, and it switches to inverter when there no voltage on the Normal inputs, but there is 110v on the inverter/backup input

https://www.amazon.com/gp/aw/d/B08T94Q6NG?psc=1&ref=ppx_pop_mob_b_asin_title

There is no enclosure box, use as is, or create/buy one, it uses two separate isolation contact sets, has a manual switch mode, each comtactor set is two pole switching hot and neutral,
I had to install my own output jumper wires making the outputs common aka linked together
I installed this several weeks ago and i am very happy with it
And its only $43, half the price of the one that failed,
If there is no power on either input , the switch stays where it was last used, ( TS is either or)
But anytime there is sufficient voltage applied to the Normal source input it switches over to Normal the default Primary
source, it is "Break before Make"
Mechanical interlock prevents both sides from being engaged at the same time.

Edited for typos and clarity
  • MrWizard wrote:
    I should have caught that
    Thank you

    Mr. Wizard, you have a PM.
  • Update
    The A.T.S.
    Is working perfectly,
    I'm very satisfied with it
  • Almot's avatar
    Almot
    Explorer III

    Hey Mr Wizard,  have just found your thread.  Was asking about  TRC/Southwire solid state switch but my post disappeared after the forum changeover. This Chinese gizmo is smaller and cheaper. Is it still running?  Ebay of course have it too, cheaper yet but QC and refund is riskier.  They also have  (looks like) solid state switch, same $35 but  smaller 2x3x5 inch, like two breakers next to  one another: 2P 63A 110V .  I'm curious, how long did your TRC switch last?

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