Outdoor UPS

The Controlled Power LTN Series is a UPS designed for harsh environment and outdoor applications. The LTN is available in a NEMA2 rating for indoor harsh enviroment conditions and NEMA 3R & NEMA 3RX configurations for outdoor applications. The LTN Series provides conditioned, regulated, no-break power to loads in high and low temperatures as well as harsh outdoor environments where it is difficult to place a UPS.


  • Uninterrupted, regulated, continuous sinewave output for use with “normally on” lighting fixtures and exit lamps
  • Standard NEMA 2 Configuration
  • Optional NEMA 3R & 3RX Stainless Steel Configurations
  • Broad Operating Temperature Range
  • Wall, Pole and Floor Mounted Configurations
  • Front Access Design
  • Optional Output Circuit breakers
  • Generator Compatible
  • Insulated, Powder Coated Enclosure (NEMA3R)
  • No-Break Transfer to Battery Power
  • Fuzzy Battery Logic Improves Battery Life

Technical Specs

  • Standard NEMA2 Unit Operating Temperature: 0°C to +40°C
  • Optional NEMA 3R & 3RX Units Operating Temperature: -35°C to 50°C
  • Input Operating Voltage Range: +10%, -40% typical, load dependent, without battery usage
  • Output Line Voltage Regulation: +/- 3%
  • Output Load Regulation:+/- 3%
  • Overload Rating: 125% for 10 seconds, 1000% for 3 Cycles
  • Output Sinewave Voltage: Maximum 3% Harmonic Distortion, any single harmonic
  • Common Mode Noise Attenuation: 120dB
  • Transverse Mode Noise Attenuation: 70dB
  • Total system MTBF: 100,000 Hours
  • 89% Efficiency
  • Isolation: Galvanic

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