The main power switches to the backup power automatically, and the backup power switches to the main power manually. 1 for ATS Automatic Transfer Switch. Color:white. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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SIXNET ETGT-9ES INDUSTRIAL ETHERNET REAL TIME SWITCH BRAND : SIXNET TYPE : ETGT-9ES POWER : 10-30 V DC MADE IN U.S.A REF. NO. : 2076 KINDLY SEE ALL THE IMAGES PROPERLY BEFORE BUY.
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Input(start button): Passive switch input, green led lights up after turn on, red led lights up after stop. Start input is not necessary. Input: Passive switch input, green led lights up after turn on, red led lights up after stop.
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Cycles ON and OFF every 12min. - 20A 125V, 250V, 480V AC. So the light or whatever you connect it to will be on for up to 12 minutes, then turn off. The two black lines are for the clock motor, which is 120VAC.
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eBay
Untested, appears to be in good working condition.
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