Does anyone know of a off the shelf breakout assembly to connect a power analyzer to? I need to safely measure electical parameters for a system that is plugged into a NEMA 5-20 receptacle.

Before I go and build a couple of nice little breakout boxes, I figured why re-invent the wheel. I am looking for something I can plug inline and connect the power analyzer to it.

I am using the IEC 320 high and standard power connectors.

Thanks.