
They work very well, I've had no problems with them at all. They take up less space than stacking 30 individual DIN rail units, and they are clearly labeled for easy connection to schematics. I just wish the screw terminals came from the factory in the open position. They are shipped closed/sealed which means each port must be re-opened before you can add cables. When you have assemblies side by side on your workbench, it's no fun wasting time unscrewing 60 screw terminals.