Advanced power and equipment protection for Square D NQ panelboards, TVS12RMU, engineered with input from contractors, the innovative Surgeon device saves time and money normally required when SPDs are factory-installed on any project. Equipped with LED status signal light sound alarm and remote control for convenient use Suitable for applications in low voltage systems, building and industrial automation and control also for critical power, cooling and racks. US and Canadian UL Listed as Type 2 SPD to the UL 1449 standard.