TX91-10kVA vs PowerVAR
The Xtreme Power TX91-10kVA and the PowerVAR isolation UPS are true online double-conversion systems with integrated isolation transformers, for electrically noisy industrial, laboratory, and infrastructure environments. Both deliver full 10 kVA / 10 kW unity-PF output and galvanic isolation. The TX91-10kVA differentiates on longer internal runtime (with an XR option), configuration flexibility, and built-in TAA compliance.
Where the TX91-10kVA leads
- Longer internal runtime — about 3 minutes (up to ~6 with XR) versus about 2 minutes.
- An XR extended-runtime option for longer backup without external batteries.
- Built-in TAA compliance for federal and regulated procurement.
- Equal 10 kW unity-PF output with isolation.
10 kVA isolation UPS, side by side
| Specification | Xtreme Power TX91-10kVA | PowerVAR (model TBD) | Advantage |
|---|---|---|---|
| UPS capacity | 10 kVA / 10 kW (unity PF) | 10 kVA / 10 kW (unity PF) | Output aligned |
| Topology | Online double-conversion with isolation transformer | Online double-conversion with isolation transformer | Both galvanic isolation |
| ANSI/IEEE C62.41 | Yes | Yes | Equivalent surge |
| Output voltage options | 120 / 208 / 220 / 230 / 240 VAC | 120 / 208 / 220 / 230 / 240 VAC | Aligned |
| Internal runtime (full load) | ~3 min (up to ~6 min XR) | ~2 min | Longer runtime |
| Optional external battery packs | Yes | Yes | Equivalent expansion |
| Input / output architecture | Hardwired standard; receptacles optional | Hardwired standard; receptacles optional | Comparable |
| Dimensions (W × H × D) | 9.9 × 32.4 × 23.3 in | 9.8 × 32.5 × 24.7 in | Similar; TX91 slightly shallower |
| Warranty | 3 yr electronics / 3 yr battery | 3 yr electronics / 3 yr battery | Equivalent |
| Compliance / listings | UL1778, cUL, FCC-A, RoHS, TAA | UL1778, CSA, EN 62040-2, RoHS | Comparable |
| TAA compliance | Yes | No (standard SKU) | Federal procurement |
Both are true online double-conversion isolation UPS delivering full 10 kW unity-PF output with galvanic isolation, equivalent surge immunity, the same multi-voltage output, configuration, and 3-year warranties. The TX91 leads on internal runtime and the XR option and adds TAA. Confirm current PowerVAR specifications against vendor documentation.
Choosing between them
Both deliver galvanic isolation and full 10 kW unity-PF output with comparable configuration. Choose the TX91-10kVA for longer internal runtime, the XR option, and TAA; PowerVAR fits where an existing PowerVAR standard governs.
Choose the TX91-10kVA if you need
- Built-in TAA compliance for federal, education, and public-sector procurement
- Longer internal runtime without external batteries
- XR extended-runtime capability
- A narrower, shallower isolation UPS for space-limited installations
- Simplified procurement for regulated environments
The (model TBD) may fit if you need
- Existing PowerVAR-standardized industrial UPS environments
- Deployment in non-TAA-regulated projects
- Applications where minimal internal runtime is acceptable
Related comparisons
Sizing an isolation UPS for a regulated or industrial deployment?
Xtreme Power supports TX91 isolation UPS sizing, runtime configuration (XR internal and external BP960 cabinets), grounding and power-quality strategy, and TAA-compliant procurement for industrial automation, medical imaging, and laboratory infrastructure.