RMSYS is an alternate series of RMU with live parts and busbars fixed in a usual stainless steel tank. A pressure relief valve which vents to the back and downwards guarantee the protection of the administrator. The noticeable manometer or weight gage screens the right weight in the tank. Inside this stainless steel regular tank are 3 position revolving switches (close, open, earth), vacuum electrical switch or withdraw-capable circuits suitable to secure the cordial circuit or transformer.