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300-550 VA Pure Sine Wave Inverter

Fast transfer system

Compatible with all lighting loads including LED and HID

Smart self-diagnostic circuit that retains and logs critical data

  • Input
  • Voltage: 120 or 277 VAC
  • Current: 4.2A (120V), 1.8A (277V) for 300/375VA Unit
  • Current: 5.8A (120V), 2.5A (277V) for 500/550VA Unit
  • Frequency: 60Hz +/- 2Hz
  • Protection: Input circuit breaker with fast acting KLK fuse in series for easy selective coordination to upstream feed breaker
  • Power Factor: 0.5 lead to 0.5 lag
  • Output
  • Voltage: 120 or 277 VAC
  • Current: 2.7A (120V), 1.17A (277V) for 300VA Unit
  • Current: 3.13A (120V), 1.36A (277) for 375VA Unit
  • Current: 4.38A (120V), 1.9A (277) for 500VA Unit
  • Current: 4.59A (120V), 1.99A (277V) for 550VA Unit
  • Frequency: 60Hz +/- .002Hz crystal controlled during emergency mode
  • Overload: 120% for 10 minutes, 400% for 200 msec
  • Transfer Time: <2 msec as standard or can be factory adjusted
  • Output Distortion: Less than 3% THD
  • Crest Factor: 4 for 500/550VA unit; 6.5 for 300/375VA unit
  • Load Power Factor: 0.5 lead to 0.5 lag
  • Protection: Optional circuit breakers
  • Output Types: Normally On, Normally Off, and Switched Outputs
  • Weight
  • E3-300: 105 lbs
  • E3-375: 105 lbs
  • E3-500: 133 lbs
  • E3-550: 133 lbs
  • Approvals
  • UL 924
  • UL 2043 (Plenum Rated)
  • OSHPD Seismic Certified (with Z4 option)
  • New York City Approved, Calendar #51575
  • NFPA 101 Life Safety Code
  • NFPA 70-NEC
  • OSHA
  • NEMA Type 1 enclosure

Product Details

Inverters provide the necessary power for emergency lighting if utility power is unavailable. Isolite inverters charge battery banks from utility power, discharge batteries to generate power in an emergency, and then transfer back to the utility power when available. Inverters also monitor the state of the utility power, automated code compliance and are more cost-effective than other solutions. Isolite offers small, medium, and building-scale inverters.

The Isoilte E3 is a 300 – 550 VA inverter. It has a fast transfer system compatible with all lighting loads, including LED and HID. The smart self-diagnostic circuit retains and logs data, and the UL is listed at a 90-minute run time. There are three separate field selectable outputs: normally on, normally off, and switched. This inverter's compact housing makes for easy installation and comes with an optional wall mounting bracket. The programmable settings are made for easy use, and it comes standard with an audible alarm.