P91-5K vs Dell-APC Smart-UPS On-Line DLRT5KRMXLT
The Xtreme Power P91-5K (paired with the BPXR2U240A pack) and Dell-APC Smart-UPS On-Line DLRT5KRMXLT are both true online double-conversion VRLA UPS for mission-critical IT. The P91-5K differentiates on higher usable watts, longer baseline runtime, modular bypass/distribution, and TAA; the Dell-APC emphasizes integrated management in a compact 3U UPS-only chassis.
What the P91-5K brings
- Higher usable watt output (5 kW vs 4.25 kW)
- Longer baseline runtime (7 min vs 4.4 min)
- Broader voltage support (208–240 V)
- Optional XBDM modular bypass & distribution
- Built-in TAA compliance for federal procurement
Side-by-side specifications
| Specification | Xtreme Power P91-5K + BPXR2U240A | Dell-APC Smart-UPS On-Line DLRT5KRMXLT | Advantage |
|---|---|---|---|
| UPS capacity | 5 kVA / 5 kW | 5 kVA / 4.25 kW | P91 – higher usable watts |
| Topology | Online double-conversion | Online double-conversion | Equivalent premium protection |
| Output voltage | 208/220/230/240 VAC | 208/230/240 VAC | P91 – broader global voltage support |
| System runtime (full load) | 7 min @ 5 kW | 4.4 min @ 4.25 kW | P91 – longer baseline runtime |
| Optional external battery cabinets | Yes (BPXR series) | Yes | Both support runtime scaling |
| Input / output architecture | Hardwired or optional XBDM modular bypass & distribution | L6-30P input; fixed receptacle set | P91 – greater flexibility & serviceability |
| Rack height | 4U total (2U UPS + 2U battery) | 3U UPS | Dell-APC more compact; P91 trades 1U for runtime |
| Warranty | 3-yr electronics / 3-yr battery | 3-yr electronics / 3-yr battery | Equivalent coverage |
| Compliance / listings | UL1778, cUL, FCC, CE, RoHS, TAA | UL1778, cUL, FCC Part 15 A, ENERGY STAR | P91 – adds TAA |
| TAA compliance | Yes | No | P91 – federal procurement |
Specifications from Xtreme Power’s supplied P91-5K vs Dell-APC DLRT5KRMXLT comparison; based on publicly available manufacturer data. The Dell-APC delivers 4.25 kW from a 5 kVA rating in a compact 3U UPS-only chassis; the P91-5K (shown with a BPXR2U240A pack) provides full 5 kW and longer baseline runtime.
Choosing between them
Both deliver online VRLA protection with external-cabinet expansion at equivalent warranty. The P91-5K leads on usable watts (5 vs 4.25 kW), voltage range, runtime, modular bypass/distribution, and TAA; the Dell-APC is more compact (3U) and fits Dell-APC-standardized environments favoring integrated management.
Choose the P91-5K + BPXR2U240A if you need
- Higher usable watt output (5 kW vs 4.25 kW)
- Longer baseline runtime without large external cabinets
- Modular bypass and power distribution (XBDM)
- Federally funded / TAA-restricted procurement
The Smart-UPS On-Line DLRT5KRMXLT may fit if you need
- A more compact 3U UPS-only footprint
- Alignment with an existing Dell-APC ecosystem and integrated management
- Non-TAA commercial deployments with modest runtime needs
Related comparisons
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