There are lots of SSR designs out there. However, John's SSRoz is one of the best. It is compact and functions great and without this initial work, the SSRez may not exist! However, a shortcoming of the design was that it was not designed with a specific enclosure in mind. The initial move towards the SSRez involved changing the layout to fit the TA-200 Telephone Demarc Enclosure. At Chris Foley's request John redesigned the layout of the PCB and the SSRez was born.

In order to keep the board to a minimum size and the board cost down, the SSRoz has all the neutral connections off board. So, take all the neutrals and connect them with a large wire nut (five 16AWG neutrals!) Once connected, where does the massive chuck of wire go? :) This led to adding terminals for the this is not inexpensive. The cost was offset in part by removing the vertical fuse holder and replacing it with inexpensive fuse clips.

Lastly, the RJ45 connector could be difficult to remove with the locking pin as the pin ends up in a tight corner. A vertical RJ45 jack made this so much easier. Now, some users like the right angle connection. The great thing is that both types will fit the board. So, if you want the "Dino Option" feel free to use the right angled connector.

While changing every thing around, the power traces were beefed up a bit to allow a slightly higher power throughput. This allows for a 7A fuse in place of the original SSRoz fuse of 5A.

so....start out trying to change one problem..and end up with a whole new layout!

The SSRez can be used as is for most all of the designs found on DIYC, and specifically the REN64.

SSRez Features

  • Designed to fit in the TA-200 Enclosure
  • Made with 2oz Copper boards for 7A total capacity
  • Trace spacing supports 240VAC use
  • RJ45 Jack layout for Top or Side Load for flexibility
  • On board 5V Logic Power LED
  • Triac layout designed with Heat Sinks in mind
  • Separate Terminals for each wire making the connections easier
  • Wiring "channel" makes the connections easier
  • Clean and Distinct Low Voltage/High Voltage Isolation
  • Fuse Position and layout allows for the Optional Fuse Cover
  • Neon Indicator for Hi Voltage
  • Supplied as a bare board (from wjohn) or as a kit from WLC Store Link

Bill of Materials

Mouser BOM

<pre style="font-size: 10pt">

QTY Mouser #: Description
1 571-5556416-1 Modular Jacks 8 PCB TOP ENTRY marked RJ45
1 504-GMC-7 5mm x 20mm Medium Time Delay Fuses 125VAC 7A Med Time Delay
4 511-BTA04-700T Triacs 4 Amp 700 Volt marked Q1, Q2, Q3, and Q4
2 534-3517 Fuse Clips and Holders PC FUSE CLIP 5 MM
1 604-WP7104IT LED Standard HI EFF RED TRANS marked LED
5 660-CF1/4C681J 1/4Watt Axial Leaded Carbon Film Resistors 680ohms 5% marked R5, R6, R7, R8 and R9
4 660-CF1/4C181J 1/4Watt Axial Leaded Carbon Film Resistors 180ohms 5% marked R1, R2, R3 and R4
4 859-MOC3023 Optocomponents Optocoupler TRIAC marked U1, U2, U3 and U4
4 571-1-390261-1 IC Sockets 6P ECONOMY TIN (Optional!) also marked U1, U2, U3 and U4
5 571-28228372 Terminal Blocks 5.08MM PCB MOUNT 2P
3 Screw,#8x1/2" Pan Head Sheet Metal
1 TA-200 Enclosure
1 Male Plug Power Cord, Rated for 8A Minimum
4 Female Plug Power Cord, Rated for 4A Minimum
1 534-3527C Fuse Cover (Optional)
1 TBD Resistor, 1/4W, 100kOhm (Optional for Revision 1.3e Boards)
1 TBD AC Indicator Lamp (Optional for Revision 1.3e Boards)


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