The VPU I 3 400V/25KA is a Type 1+2 combined surge protection device designed for three-phase power supply systems. It provides reliable protection against lightning-induced surges and switching overvoltages in main distribution boards.
The VPU I 3 400V/25KA is a Type 1+2 combined surge protection device designed for three-phase power supply systems. It provides reliable protection against lightning-induced surges and switching overvoltages in main distribution boards.
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