TX91-5kVA vs NXT Integrity Max NPTU5200-0
The Xtreme Power TX91-5kVA and the NXT Power Integrity Max NPTU5200-0 are true online double-conversion UPS with integrated isolation transformers, for electrically noisy industrial, laboratory, and infrastructure environments. Both deliver galvanic isolation, strong surge suppression, and multi-voltage output. The TX91-5kVA differentiates on longer internal runtime (with an XR extended-runtime variant), configuration flexibility, a narrower and shallower footprint, and built-in TAA compliance.
Where the TX91-5kVA leads
- Longer internal runtime — about 10 minutes at full load (up to ~15 with the XR variant) versus about 5 minutes.
- An XR extended-runtime variant for longer backup without external batteries.
- A narrower and shallower footprint for space-constrained installations.
- Built-in TAA compliance for federal and regulated procurement.
5000 VA isolation UPS, side by side
| Specification | Xtreme Power TX91-5kVA | NXT Power Integrity Max NPTU5200-0 | Advantage |
|---|---|---|---|
| UPS capacity | 5000 VA / 5000 W (unity PF) | 5200 VA / ~5200 W | NXT higher nominal VA |
| 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 | Equivalent |
| Internal runtime (full load) | ~10 min (up to ~15 min XR) | ~5 min | Longer runtime |
| Optional external battery packs | Yes | Yes | Equivalent scalability |
| Dimensions (W × H × D) | 9.9 × 32.4 × 23.3 in | 11.8 × 28.4 × 29.1 in | Narrower & shallower |
| Input / output configuration | Optional / configurable | Optional / configurable | Comparable |
| Warranty | 3 yr electronics / 3 yr battery | 3 yr electronics / 3 yr battery | Equivalent |
| Compliance / listings | UL1778, cUL, FCC-A, RoHS, TAA | UL Listed, CE, OSHPD/HCAi | NXT adds OSHPD/HCAi |
| TAA compliance | Yes | No | Federal procurement |
Both are true online double-conversion isolation UPS with galvanic isolation, equivalent ANSI/IEEE C62.41 surge performance, the same multi-voltage output, and matching 3-year warranties. The TX91 leads on internal runtime, footprint, and TAA; the NXT carries OSHPD/HCAi listing and a slightly higher nominal VA rating. Confirm current NXT Power specifications against vendor documentation.
Choosing between them
Both deliver galvanic isolation and online double-conversion protection at ~5 kVA, so the decision turns on runtime, footprint, certifications, and procurement. Choose the TX91-5kVA for longer internal runtime, an XR option, a smaller footprint, and TAA; the NPTU5200-0 fits where OSHPD/HCAi listing or an existing NXT standard governs.
Choose the TX91-5kVA 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 Integrity Max NPTU5200-0 may fit if you need
- Facilities requiring OSHPD/HCAi-listed equipment
- Existing NXT Integrity Max standardized deployments
- A slightly higher nominal VA rating
- Deployment in non-TAA-regulated projects
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.