Siemens TPS3C12400X02 Surge Protection Device

Siemens TPS3C12400X02 Surge Protection Device is a Type 2 SPD in Siemens' TPS3 family, engineered for external-mount protection on residential panelboards against transient overvoltages. Housed in a standard NEMA 4 metallic enclosure, it includes a built-in surge counter for event logging and an internal disconnect for local isolation, enabling simple maintenance without removing the device. The model aligns with the US2 configuration, with a replacement SKU TPS4C12400XD2 for cross-compatibility with newer kits. This TPS3C12400X02 delivers reliable surge protection to shield downstream equipment from lightning-induced and utility switching surges, helping preserve electronics and control circuits in protected installations.