Typical ILc-VRp applications
Designed for applications where absolutely safe and precisely regulated ac power is required, such as mobile telecommunications, wireless, satellite and carrier equipment.

Key ILc-2000-VRp-Dual-Range system benefits
The lightweight, high efficiency dual voltage range ILc-VRp is easy to install in indoor environments. The unit comes in a rack-mountable enclosure and has the ability to accept either 120 vac or 240 vac +/-20% input via either a IEC 320 C-20 input connector for the 120vac, or an IEC 320C-13 inlet connector for the 240 vac. Power output is up to 1800 watts, and can be drawn from Either/or Both 115 vac and 230 vac +/-2.5%, as long as total output power is not exceeded. 115 vac and 230 vac outputs are provided via two standard NEMA 5-15R receptacles for the 115 vac, and one UK BS1363 outlet connector for the 230 vac. The automatic bypass assures that connected equipment will not shut down, even if the ILc-VRp unit were to fail. The ILc-VRp is compatible with all loads as it does not switch any components in the power path. ILc-VRp’s ultra-low impedance assures stability even with the most demanding loads. The isolation line conditioner components provide maximum equipment protection against surges, spikes and transients, for higher equipment reliability and maximum equipment operating life. In addition, improved repeatability, fewer reboots or system lock-ups. Also, a reduction in equipment down time and service costs can be expected. Maximum transformer and regulator performance, reliability and lifetime is achieved by a design with no moving mechanical parts other than a thermostatically controlled high reliability cooling fan to control the unit’s internal temperature.

How the ILc-VRp 2000VA dual range system works
The ILc-VRp unit is comprised of an automatic precision voltage regulator, and an isolation line conditioner. Unit has a front panel key switch to select either 120 vac or 240 vac, with a safety interlock to prevent voltage from appearing on unused terminals. The high frequency IGBT driven converter microprocessor takes the incoming ac power, measures against the nominal voltage and adds or subtracts voltage, 20,000 times per second, to achieve precisely regulated 230 or 120 vac output, cycle by cycle. Voltage correction times do not exceed 1 cycle, or 20 milliseconds for all mains ac voltage changes, even for instantaneous voltage changes from 96 to 144 vac (when at the 120 vac input setting) or from 192 to 288 vac (when at the 240 vac input setting). The ILc-VRp starts on sine wave zero voltage crossing point upon turn-on. This reduces potentially damaging inrush currents into difficult loads. The automatic bypass will be activated when there is a fault condition, and makes operation possible without regulation. Three LEDs display unit status, the Green LED indicates Normal (regulating protected mode operation), Yellow LED indicates Bypass (non-regulated output), and the Red LED indicates a Fault condition. (If Green LED is off, it means internal circuit board needs replacement). A low-impedance isolation transformer provides complete isolation between the primary and secondary, and permits bonding its output neutral to ground, which completely eliminates all disturbances between neutral and ground. The leakage inductance of the isolation transformers, in combination with capacitive elements and MOVs, provide superb noise filtering, as well as coordinated multi-stage surge protection in accordance with the principles of IEC-61312.