d200mDITEK D200M-1202401 Modular Surge Protective Device, 200kAPhase, Protects 120240VAC Split Phase Panels. D200M-1202401 | DK-200M1201. Product Documents and Resources.DITEK’s D200M-T Series of modular 200kA industrial surge protectors offer professional-grade facility-wide protection, with additional service assurance features to support proactive operational management. Replaceable modules