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Tripp Lite SUT40K 40kVA 40kW Smart Online 3-Phase UPS 208/120V 220/127V Tower Nplus1 SUT40K


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Product Description

Tripp Lite SUT40K 40kVA 40kW Smart Online 3-Phase UPS 208/120V 220/127V Tower Nplus1 SUT40K

The Tripp Lite SUT40K SmartOnline® SUT Series 3-Phase 208/120V 220/127V 40kVA 40kW On-Line Double-Conversion UPS provides complete protection against power interruptions and fluctuations that can contribute to equipment failures and data loss. It's recommended for critical data center, telecommunications, computer network, light industrial and financial applications.

The Voltage and Frequency Independent (VFI) design allows continuous operation at either 50 or 60 Hz. Zero transfer time from online to battery mode ensures no disruption to attached equipment loads. Offering an efficiency of 94% during normal operation and 98% in economy mode, the SUT40K reduces energy losses for cost-saving operation. Automatic bypass keeps connected equipment powered, even during overloads and many potential UPS fault conditions.

IGBT inverter technology produces output power with less than 2% total harmonic distortion (THDi) to keep connected equipment functioning at its peak. A 3:1 crest factor safely supports a variety of loads, even those with wildly fluctuating power demands.

Managing the SUT40K is simplified through the multi-language LCD interface, which displays critical operating conditions and diagnostic data, such as battery and load status. Four LEDs indicate AC, bypass, battery and fault modes. A built-in card slot supports optional remote management cards, such as WEBCARDLX, for comprehensive monitoring and control over a network.


  • On-line double-conversion topology, VFI operation
  • 1.0 unity power factor supports 40kVA/40kW capacity
  • Up to 98% economy-mode efficiency option saves energy
  • Internal batteries included with external battery pack options
  • Parallel up to 4 units for increased capacity or N+N fault tolerance redundancy


  • Output
  • Output Volt Amp Capacity (VA): 40000
  • Output kVA Capacity (kVA): 40.00
  • Output Watt Capacity (Watts): 40000
  • Output kW Capacity (kW): 40.00
  • Power Factor: 1.0
  • Crest Factor: 3:1
  • Nominal Output Voltage(s) Supported: 120/208V 3-PH Wye; 127/220V 3-PH Wye
  • Frequency Compatibility: 50 / 60 Hz
  • Frequency Compatibility Details: Auto-selectable frequency configuration
  • Output Voltage Regulation (Line Mode): ±1%
  • Output Voltage Regulation (Economy Line Mode): ±10%
  • Output Voltage Regulation (Battery Mode): ±1%
  • Output Receptacles: Hardwire
  • Output Circuit Breakers: Electronic AC output protection; Short-circuit protection
  • Output AC Waveform (AC Mode): Pure Sine wave
  • Output AC Waveform (Battery Mode): Pure Sine wave

  • Rated input current (Maximum Load): 135A (120/208V); 127A (120/208V)
  • Nominal Input Voltage(s) Supported: 120/208V 3-PH Wye; 127/220V 3-PH Wye
  • Nominal Input Voltage Description: 3-Phase Wye, 4 wire (L1, L2, L3, N, G)
  • UPS Input Connection Type: Hardwire
  • Input Circuit Breakers: 150A 3 pole 240V breaker
  • Input Phase: 3-Phase
  • Power Factor (Input): >0.99 (maximum resistive load)
  • THDi: <4% (maximum resistive load)

  • Full Load Runtime (min.): 3.7 minutes (40kW)
  • Half Load Runtime (min.): 10.2 minutes (20kW)
  • Expandable Battery Runtime: Supports extended runtime with optional external battery packs
  • External Battery Pack Compatibility: BP288VEBP
  • Expandable Runtime Description: External battery pack wiring is contractor supplied
  • DC System Voltage (VDC): ±144VDC
  • Battery Recharge Rate (Included Batteries): 3.2 hours from 10 to 90%; Battery charge current adjustable from 1 to 20A (7.5A factory default)

    Voltage Regulation
  • Voltage Regulation Description: Online, double-conversion power conditioning maintains ±1% output voltage regulation
  • Overvoltage Correction: Maintains continuous operation without using battery

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