TRIPP LITE SMART2500XLHG 2200VA 1920-Watts Smart Tower Hospital Medical USB UPS Ideal UPS protection for applications in patient-care areas where UL 60601-1 3rd edition listed medical electrical equipment is required Built-in isolation transformer with Faraday shield offers full isolation and removes common mode noise while maintaining full AC surge suppression in all modes Full line isolation prevents shock potential and operational problems in sensitive electronic equipment Provides connected equipment with continuous power during short and long duration loss of commercial power Expandable runtime is available with the addition of one or more external battery packs (BP48V24-2U and BP24V60RT-3U)