CITEL M50-120T-A AC Power Din Rail Surge Protector for 120Vac Control Panels Datasheet Contact Us AC Network: 120/240Vac, 3W+G, Split Phase Application: Whole House, Control Panel, Pump Panel, Power Cabinet Home electronics and other sensitive devices are at risk from overvoltages caused by direct and indirect lightning strikes as well as power system switching transients. To assure up-time and the longevity of your devices a comprehensive approach to protection is required. CITEL, your partner in surge protection, stands ready to apply our expertise and knowledge in protecting all your Residential Home applications.