Relay-board

A simple breakout PCB, designed in 2010, that mounts a handful of relays and brings their contacts out to AK500 screw terminals. Made to hook relays up to wiring without a mess of flying leads.

What's on it

• Relay footprints.
• AK500/2 and AK500/3 screw terminal blocks.
• Passive copper routing.
• A 30V rating printed on the board.

The wiring

Each relay's coil and contacts land on the PCB, and the screw terminals map to them. You drive the coil from a controller; the switched contacts terminate on the headers. Nothing active on board. Pure breakout, and that is all a relay carrier needs to be.