Connecting the SCB-100 to a Solid State Relay

Hey everyone,

I am trying to hook up a solid state relay to the SCB-100 which is connected to a PXI 6515 device. I was just wondering where I can purchase the connecting wire that is ideal for this purpose. A quick look online has yielded few helpful results. A link to grainger/zoro tools or others would be appreciated. The specifications are: The wire must be able to withstand 25V voltage, 25A current. It should also be easy to wire it into the SCB-100. Any AWG will do. 

Thanks!