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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
Voltage WPC AH/kVA Length Width Height Weight
208VAC N/A 3800 Kva 23.2" 9.8" 32.4" 272lb
Voltage 208VAC
WPC N/A
Amp/H 3800 Kva
Length 23.2"
Width 9.8"
Height 32.4"
Weight 272lb
TX91 Isolated Online Tower UPS — 3.8–10 kVA • Dual-Voltage Output • Galvanic Isolation
True Online Double-Conversion • Isolation Transformer • 208 / 230/115 / 240/120V • 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 problems—including sags, surges, brownouts, harmonics, frequency variation, and electrical noise—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 — Reduces common-mode noise and provides continuous conditioning in normal and bypass modes.
  • True online double-conversion — Seamless protection from all 10 common power problems with clean, regulated output.
  • Dual output voltages — Configurable 240/120 VAC or 230/115 VAC for wide equipment compatibility.
  • Integrated static switch — Instantaneous transfer to isolated bypass during overload or internal fault.
  • Extended runtime options — XR models with internal batteries or external battery cabinets to meet site runtime needs.
  • Superior surge protection — Low let-through performance for both L–N and N–G transients (per listed standards).
  • Auto restart — Automatically resumes operation when utility power returns after a full discharge event.
  • Advanced LCD display — 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 (L–N), < 0.5 V (N–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 — Decades of UPS and power-quality experience for proper sizing and deployment.
  • Application matching — We help select the right kVA, voltage configuration, and runtime strategy (internal vs. external batteries).
  • End-to-end support — 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, we’ll help you spec the right TX91 model and battery configuration for your site.

Gruber Power Services