TELECOM POWER >> Inverters
   STI1000 Compact Switchmode Inverter
   
Features

The STI1000 is a compact, full-featured yet economical inverter solution capable of delivering 1000 Watts for small critical loads in space limited applications.

  • All the advantages of switchmode technology with Pylon reliability built in for continuous duty online operation.
  • 19" or 23" rack mountable (brackets supplied) and takes as little as 3.5" (2 RU) of height. (1.75" required top and bottom for optimal cooling).
  • Parallelable for increased power or redundancy.
  • Two units may be connected in parallel without any external equipment providing a highly economical solution.
  • Extremely low audible noise - suitable for manned work environments.
  • Digital LED true RMS output current meter standard.
  • Local and extended alarms including overload to accurately monitor load conditions.
  • Automatic bi-directional transfer scheme, transfers in < 10 msec.
  • Low distortion, true sine wave output.
  • Telecom grade input filtering.
  • High efficiency.
  • Short circuit, over/under voltage and thermal protection.
    120VAC / 60Hz or 220VAC / 50Hz
Technical Specifications
Electrical Specs:
Output Waveform: True sine wave, <3% THD 
Output Power: 1000VA at 0.8 PF; 1000W at 1 PF; 20% surge capability
Load/Line Regulation: 5% combined
Frequency: 60 Hz
Input Voltage: 48VDC nominal; 42-60VDC range
Input Current: 24A nominal at full load; soft start to limit inrush
Battery Feedback Noise: <30 dBrnC
Efficiency: >87% from 50% to 100% full load
AC Transfer: Automatic bi-directional fast "ETS" transfer scheme, online or off-line mode user selectable.
Protection: Reversed DC polarity protection; DC input low-voltage shutdown; output short circuit protection, power limiting and voltage foldback with auto-recovery; magnetic circuit breakers for AC and DC input, thermally controlled fan; over-temperature shutdown.
Metering: Digital LED output current, true RMS Amps; four sets of front mounted tip jacks for input/output voltage and current.
Indicators and Alarms: Front panel LED's for Inverter On, Overload, Inverter Fail and AC Mains Fail.  Extended "form C" contacts of Overload, Inverter Fail and AC Mains Fail.
Audible Noise: <40 dBA at 1 metre from the unit.
Approvals: UL & ULC, FCC Class A subpart 15J compliant, CE on 220/50Hz model.

Two units may be paralleled in a + 10% load sharing mode without any external devices.  Up to 5 units may be paralleled with the addition of a Junction Control Panel.
Mechanical Specs:
Operating Temperature: 0 - 50 Degrees Celsius (thermally activated cooling fan).
Operating Humidity: 0 - 95% (non-condensing).
Operating Altitude: 0 - 10,000 feet maximum before derating.
Dimensions: 17" W x 3.5" H x 15" D (432 x 89 x 381 mm)
Weight: 21 lb. (9.5 kg).
Mounting: 19" or 23" rack-mount, brackets included.
Finish: Black matte powder coat.

Options
  • A16960-RA output power receptacles and input AC linecord
  • A16960-RD rear mounted NEMA 5-15R receptacle (backup AC connection n/a)
  • A16970 BNC cable pair for connecting two STI1000's in parallel

Copyright © 2003 S.D. Electronics