The Surgex SX-N240 whole room surge protector operates from 240 volts AC and has a barrier strip accessible through knock-outs within the enclosure for hardwiring power input and output connections, with a load rating of 20 amps at 240 volts. It shall withstand at least 1000 occurrences of surge pulse volatges up to 6000. Built with NEMA magnetic shielding steel enclosures that meet code for use at the service entrance, sub-panels, and in the ceiling plenums. A self-test circuit with a visual indicator provides advanced series mode power protection, and EMI/RFI filtering. Engineered with Advamced Series Mode surge elimination and power conditioning technologies, they eliminate all surge energy to properly protect connected equipment from surges, spikes, and electrical transients without producing harmful ground contamination or common-mode distrubances. An all mode impedance talerant EMI/RFI filter virtually eradicates electrical noise to offer a complete whole room power conditioning solution.