Automatic Voltage Regulator Terminal Markings

20kva voltage regulator During installation, input and output lines must be connected strictly according to terminal markings. Clear labeling of terminals is essential for ensuring proper connection between the device and the power supply system. When working on-site, users should first identify the ports marked INPUT and OUTPUT, representing the power input and load output locations, respectively.

Generally, the terminal blocks on the back or side of the 3 phase automatic stabilizer device will be labeled with input and output. Live wire, neutral wire, and ground wire are marked with corresponding characters such as L, N, PE, or the symbol "⏚". When connecting to mains power, connect the live and neutral wires from the grid to the terminal marked INPUT, and connect the powered equipment to the terminal marked OUTPUT. The ground wire must be connected to the chassis or a dedicated grounding point to help stabilize the overall electrical structure.