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S2K Series Line-Interactive UPS

One of the most compact line- interactive model on the market, the S2K Series UPS’s protect against most severe power disturbances including over/under voltages through state of art, line-interactive technology. Because all S2K Series UPS’s are line-interactive, most power disturbance corrections are accomplished without transferring to the internal battery. Utility power is continually protected by the S2K Series UPS’s and internal battery life is optimized.

The UPS has built in protection for under and over voltage conditions including low-energy lightning surges introduced on the input power source. Additionally, all S2K Series UPS are provided with an input circuit protector and a pair of surge protected data line connectors (RJ-45).

The S2K Series UPS’s are provided with an automatic bi-weekly test function to insure the capability of the battery to supply power in emergency situations. Should the battery fail this test, the UPS will display a warning to indicate that the battery needs to be replaced.


  • 350 - 1000 VA
  • Line-interactive with Data Line protection for telephone and network connections.
  • Automatic Voltage Regulation (AVR) topology - saves battery power for deep sag situations when input voltage is below 78V.
  • Stepped sinewave output (Battery mode).
  • Selectable input voltage (110, 120 or 127 VAC).
  • Full sequence, automatic bi-weekly battery testing.
  • User replaceable, "hot swappable" batteries (Shutdown for battery replacement not required).
  • MultiLinkTM Power management software is available online.
  • Protects against most adverse power conditions including:
    • Frequency variations
    • Surge
    • Blackouts
    • PLCs
    • Computer peripherals

PDF Files

S2K Series Line-Interactive UPS Specifications
S2K Series Line-Interactive UPS Guide Specification
Extended Warranty


S2K Series Line-Interactive UPS

Catalog Number Capacity (VA/W) Volts Typical Runtime Min.*
S2K350 350/210 110/120/127 VAC 8/26
S2K500 500/300 110/120/127 VAC 8/24
S2K650 650/390 110/120/127 VAC 5/16
S2K1000 1000/600 110/120/127 VAC 5/18
*Full/Half load (in minutes)

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