Siemens AG TPS3E1220000 Surge Protective Device

Siemens TPS3E1220000 Surge Protective Device is an external, three‑phase, four‑wire surge protector designed to guard 480Y/277V power distributions from transient overvoltages. With a surge current rating of 200 kA, it channels harmful energy away from downstream equipment during lightning strikes or utility switching events, helping to prevent insulation damage and equipment malfunction. This model is intended for installation at service equipment or downstream panels in industrial or commercial environments and is compatible with 480V three‑phase systems (480Y/277V, 3PH 4W) to safeguard motors, drives, controls, and other sensitive electronics.