Outdoor Automatic Voltage Regulators

As a wide-input range, PWM-based automatic voltage regulator (AVR) with precise regulation, the VRX is designed for outdoor installation and is ideal for cell site and end-of-line voltage correction.

TSi Power Outdoor Automatic Voltage Regulators

VRX Outdoor Automatic Voltage Regulators

VRX is available in both single- and three-phase versions. Its aluminum enclosure is rain tested to UL 50E and has a protection rating equivalent to NEMA-3R or IP54.  NEMA-4X / IP65 is available upon special request.

TSi Power’s VRX line incorporates unique AC chopper technology for very high efficiency. Its inverter imposes an ultra-fast PWM correction voltage on the primary winding of a buck-boost transformer. The VRX line of outdoor AVRs feature complete line conditioning with an input voltage range of 172 to 264 V, 50/60 Hz with output regulated to +-3%. The extended input voltage range is 160 to 330 V with reduced regulation.

Incorporating industrial strength surge protection, the VRX’s electronics and magnetics are designed to operate under perpetually worst-case conditions. Its efficiency is between 96% to 98% depending on operating conditions. The VRX is available in single- and three-phase models, as well as in a variety of sizes. TSi Power offers wall, pad and pole mounting options, along with a variety of special and custom VRX products upon request.

  • VRX Single Phase 230 V, 50/60 Hz

    VRX single-phase units are available in following sizes: 3, 5, 7.5, 10, 15 and 20 kVA and are rated for 230 V at 50/60Hz. With an ambient operating temperature range of -20 to 50 °C, over- and under-voltage cut off is available as an option. The control PCB assembly is connectorized for easy replacement. Wall mounting is standard but pad or pole mounting is available as an option.

    VRX Single Phase 230 V, 50/60 Hz

  • VRX Three Phase 400/230 V, 50/60 Hz

    VRX single-phase units are available in following sizes: 15, 22.5 and 30 kVA and are rated for 230/400 V at 50/60 Hz. With an ambient operating temperature range of -20 to 50 °C, over- and under-voltage cut off is available as an option. The control PCB assembly is connectorized for easy replacement. Wall mounting is standard but pad or pole mounting is available as an option.

    VRX Three Phase 400/230 V, 50/60 Hz

  • VRX Single Phase, Split Phase 120/240 V, 60 Hz

    VRX single- and split-phase units are available in following sizes: 5 kVA, 120 V and 24 kVA, 120/240 V, 60 Hz. With an ambient operating temperature range of -20 to 50° C, the control PCB assembly is connectorized for easy replacement. Wall mounting is standard but pad or pole mounting is available as an option.