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Xtreme – TX91 – 3800 – 3.8 KVA – Online Isolated UPS

Manufacturer

OEM Part Number

TX91-3.8K

GPS Part Number

67-TX91-3800

Price:

$6,985.00

Specifications
View Spec Sheet
Voltage AH/kVA Length Width Height Weight
208VAC 3800 Kva 23.2" 9.8" 32.4" 272lb
Voltage 208VAC
Amp/H 3800 Kva
Length 23.2"
Width 9.8"
Height 32.4"
Weight 272lb
TX91 Isolated Online Tower UPS โ€” 3.8โ€“10 kVA โ€ข Dual-Voltage Output โ€ข Galvanic Isolation
True Online Double-Conversion โ€ข Isolation Transformer โ€ข 208 / 230/115 / 240/120V โ€ข Unity PF (1.0)

The TX91 Isolated Online Tower UPS delivers enterprise-grade power protection for critical loads in IT rooms, industrial control spaces, labs, and commercial facilities. Built around a galvanic isolation transformer and true online double-conversion topology, the TX91 protects against all 10 common power problemsโ€”including sags, surges, brownouts, harmonics, frequency variation, and electrical noiseโ€”while providing continuous power conditioning during both normal operation and bypass.

A key advantage of the TX91 is its dual output voltage capability, configurable to 240/120 VAC or 230/115 VAC. This flexibility supports a wide range of equipment and receptacle types, making it an excellent choice for mixed-load environments. With an integrated static switch, the UPS can transfer instantly to an isolated bypass path during overload or internal fault conditions, maintaining continuity for connected equipment.

Key Features & Benefits
  • Galvanic isolation transformer โ€” Reduces common-mode noise and provides continuous conditioning in normal and bypass modes.
  • True online double-conversion โ€” Seamless protection from all 10 common power problems with clean, regulated output.
  • Dual output voltages โ€” Configurable 240/120 VAC or 230/115 VAC for wide equipment compatibility.
  • Integrated static switch โ€” Instantaneous transfer to isolated bypass during overload or internal fault.
  • Extended runtime options โ€” XR models with internal batteries or external battery cabinets to meet site runtime needs.
  • Superior surge protection โ€” Low let-through performance for both Lโ€“N and Nโ€“G transients (per listed standards).
  • Auto restart โ€” Automatically resumes operation when utility power returns after a full discharge event.
  • Advanced LCD display โ€” Real-time monitoring of input/output, load, alarms, and battery status.
At-a-Glance Specifications
Parameter Detail
Capacity Range 3.8 kVA to 10 kVA
Topology Isolated online (double-conversion with galvanic transformer)
Power Factor Unity (1.0)
Input / Output Voltage Options 208 V input; configurable outputs: 240/120 VAC or 230/115 VAC
Battery Options Internal batteries (XR models) and/or external battery cabinets
Surge Let-Through < 10 V (Lโ€“N), < 0.5 V (Nโ€“G)
Surge Withstand ANSI/IEEE C62.41 Cat A & B (6 kV / 200 A / 500 A ringwave)
Certifications UL1778, cUL, FCC Class A, RoHS, TAA
Why buy from Gruber
  • Critical power expertise โ€” Decades of UPS and power-quality experience for proper sizing and deployment.
  • Application matching โ€” We help select the right kVA, voltage configuration, and runtime strategy (internal vs. external batteries).
  • End-to-end support โ€” From startup planning to battery maintenance guidance, we keep your protection plan practical and reliable.

If you share your load (kW), voltage needs, receptacle type, and required runtime, weโ€™ll help you spec the right TX91 model and battery configuration for your site.

Gruber Power Services