The above Ad will no longer appear after you Sign Up for Free!

SSR

Discussion in 'Wiki' started by derekleffew, Sep 13, 2008.

  1. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

    Messages:
    4,397
    Likes Received:
    2,782
    Location:
    Las Vegas, NV, USA
    Solid State Relay. Colloquially called a "power cube", perhaps due to the company "Silicon Power Cube Inc." that led the production of these devices for many years.

    These devices are the power-handling "heart" in many phase control dimmers. They contain two SCRs in a back- to-back configuration, as well as an opto-triac for electrical isolation and sometimes an R/C snubber network for control of dv/dt or "false turn-on" events due to voltage spikes.

    Most high-density dimmer systems use dual-SSRs, providing two circuits of dimming. Crydom (the eventual buyer of Silcon Power Cube Inc.) is one of the largest manufacturers.


    Shown below in context, the SSR is in the middle of the Colortran D192 dual 20A dimmer module, between the circuit breakers and the two chokes.
    [​IMG]

    An LMI/ETC L86 dual 20amp dimmer.
    [​IMG]

    Two units unmounted:
    [​IMG]
    http://www.johnsonsystems.com/parts_support.htm

    Link to PDFs by Crydom: SSR - The Inside Story.pdf and How to Test an AC Solid State Relay.pdf.
     

    Attached Files:

    Last edited: Apr 27, 2010

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice