2RU SINE-WAVE INVERTER

NEWS RELEASE

October 3, 2003                                                          Editorial Contact: Gene Zuch

                                                                                                954-346-2442 ext. 303

2RU SINE-WAVE INVERTER PRODUCES

230VAC AT 5,000 VOLT-AMPS

Coral Springs, Florida- UNIPOWER Telecom's new INV5000-230 produces 230VAC RMS at 22 amperes (5kVA) in a 2RU-high (3.5 inches) shelf which mounts in a 19- or 23-inch rack. Both 50 and 60Hz models are available, and the input voltage range is 42 to 56VDC.

The near-perfect sinusoidal waveform has less than 2% total harmonic distortion and ±0.1% frequency stability. A microcontroller creates the sine-wave reference and controls the other functions of the inverter. High frequency pulse-width modulation with MOSFET and IGBT power semiconductors are employed to achieve 90% efficiency and 4.8VA per cubic-inch power density.

The INV5000-230 is fully isolated from the battery input. Input circuit breakers turn the inverter on and protect the battery from input faults. Output breakers connect the inverter to the load bus and quickly disconnect it in the event of an internal fault.

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INV5000-230 Inverter System

The inverter also has a synchronization feature for connection to a line AC bus. A high surge capability makes it useful for starting into inductive loads like motors, but quick-trip output breakers prevent power from flowing back into a faulted inverter.

Front panel LEDs indicate inverter status, and Form C relay alarm contacts are available on the back. The unit is self-cooled by internal fans and comes with a clear plastic rear safety cover. Two or more INV5000-230 units can also be paralleled for higher power or operated in an N+1 redundant mode.

The INV5000-230 is ideally suited for use in telecom installations, electric utility substations, fuel cells and solar panel arrays. The 5kVA inverter is priced at $3,970 each in quantities. Delivery time is 2-4 weeks ARO.

UNIPOWER Telecom is a division of UNIPOWER Corporation dedicated to telecommunications power systems, with a complete line of the industry's highest density rectifiers and inverters, AC and DC distribution solutions and custom configured power systems. For reader information contact Mark Hart, UNIPOWER Telecom, 3900 Coral Ridge Drive, Coral Springs, Florida, 954-346-2442 extension 315.

E-mail: markh@unipower-corp.com

Website: Unipower Telecom

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