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switched outlet max rating

Discussion in 'Electronic Basics' started by MNP, Apr 3, 2004.

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  1. MNP

    MNP Guest

    I want to plug the AC cord of my NAD 2400 power amp into the switched outlet
    on my
    Yamaha rxv992 a/v receiver so I can use the receiver remote to turn
    everything on. The receiver tho, says 120 Watts max from the
    switched outlet and the NAD power consumption is listed as 390 VA. So, my
    question is: would that be a dumb thing to do? thanks
     
  2. It likely isn't a good idea. That seems low for a switched plug,
    doesn't it?

    Tom
     
  3. John Fields

    John Fields Guest

    ---
    Yes.

    Since the receiver's switch is rated for 120 watts, that means that
    with 120V mains it can deliver 1 ampere into a load.

    The power amp's looking for 390VA means that it'll require the switch
    to carry 390VA/120V = 3.25A, over three times what the switch is rated
    for.
     
  4. What I did for my Adcom power amp and Hafler preamp was to plug a
    small wall wart into the preamp. The wart turns on a 40 amp solid
    state relay. The relay is mounted to a 7x9x1/8 inch aluminum plate as
    a heat sink. The SSR also powers up the remainder of the toys. The
    only catch is to put a bleed resistor on the control input of the SSR
    so it turns off quickly. This contraption has been working properly
    since 1991.
    GG
     
  5. JeffM

    JeffM Guest

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