Vertiv PBRGXT34X1500VA vs Vertiv GXT5-1500LVRT2UXL: Specification Comparison
Both the Vertiv PBRGXT34X1500VA (Liebert GXT3-4 series) and the GXT5-1500LVRT2UXL (Liebert GXT5 series) are 1500VA / 1350W online double-conversion rack/tower convertible UPS units designed for single-phase 120VAC IT and network closet loads. A buyer evaluating either unit is shopping the same capacity tier, the same topology, and the same physical form factor, making a direct side-by-side comparison appropriate for procurement decisions.
In This Guide
- How do power capacity, efficiency, and output quality compare between the two units?
- What are the physical form factor, outlet configuration, and connectivity differences?
- Which unit offers stronger management options, compliance credentials, and serviceability?
- Which should you choose: the PBRGXT34X1500VA or the GXT5-1500LVRT2UXL?
- Side-by-Side Specs
- FAQ
How do power capacity, efficiency, and output quality compare between the two units?
Both units are rated identically at 1500VA / 1350W and share the same online double-conversion topology, meaning neither introduces a transfer-time gap under normal operation. Output voltage on each is user-configurable across 110, 115, 120, or 125VAC at ±3% regulation, and both accept the same 60–150V wide input range.
On efficiency, the PBRGXT34X1500VA specifies two figures: up to 98% in Active ECO Mode and up to 95% in standard on-line mode. The GXT5-1500LVRT2UXL lists up to 98% in ECO mode; its standard on-line efficiency is not stated in the provided specs. The GXT5 spec explicitly confirms a pure sinewave output waveform; the PBRGXT34X1500VA spec does not state waveform type, though online double-conversion inherently produces a synthesized sinewave.
What are the physical form factor, outlet configuration, and connectivity differences?
The GXT5-1500LVRT2UXL provides explicit rack dimensions of 16.9 × 18.6 × 3.4 in (W × D × H) in a 2U profile and a stated weight of 46.2 lbs. The PBRGXT34X1500VA lists only an 85 mm height dimension; full rack depth, width, and weight are not provided in the available specs, limiting direct physical planning comparisons.
Both units ship with 6 × NEMA 5-15R output receptacles and a NEMA 5-15P input plug. The PBRGXT34X1500VA specifies 4 individually programmable receptacles plus 2 non-programmable; the GXT5 spec references programmable outlet groups but does not specify the exact programmable-vs-fixed breakdown. Connectivity on the PBRGXT34X1500VA includes USB, RS485, RS232, terminal block, and an external battery connector, with SNMP/web requiring the optional IntelliSlot RDU120 card. The GXT5 lists USB and Serial (DB9), also with an optional IntelliSlot network card for SNMP—RS485 and terminal block are not listed for the GXT5.
Which unit offers stronger management options, compliance credentials, and serviceability?
The PBRGXT34X1500VA includes a colored graphic LCD with gravity-sensing orientation for local status monitoring; no local display is mentioned in the GXT5-1500LVRT2UXL spec. Both units support optional IntelliSlot network cards for SNMP and web management. The GXT3-4 additionally lists RS485 and terminal block interfaces; these are absent from the GXT5 spec.
On compliance, the PBRGXT34X1500VA carries UL 1778 4th edition, CSA 22.2 No. 107.1, ENERGY STAR 2.0, WEEE, RoHS2, and REACH certifications. The GXT5-1500LVRT2UXL is listed as TAA Compliant and ENERGY STAR 2.0 Certified; UL, CSA, RoHS, and REACH status are not stated in the provided specs. TAA compliance on the GXT5 is a meaningful differentiator for U.S. federal, SLED, and government-contract procurement where domestic-trade-agreement sourcing is required. The GXT5 spec explicitly states hot-swappable user-replaceable battery modules and a 3-Year Advanced Replacement warranty; neither battery serviceability nor warranty terms are stated for the PBRGXT34X1500VA.
The GXT5 additionally lists EPO (Emergency Power Off), an input circuit breaker, surge protection, and generator-friendly operation as named features; these are not explicitly itemized in the PBRGXT34X1500VA spec, though some may be present.
Which should you choose: the PBRGXT34X1500VA or the GXT5-1500LVRT2UXL?
Our take: The GXT5-1500LVRT2UXL is the stronger choice when TAA compliance, documented hot-swap battery serviceability, and a stated warranty are procurement requirements. The GXT5 is explicitly TAA Compliant—critical for federal and SLED contracts—while the PBRGXT34X1500VA spec makes no such claim. The GXT5 also names hot-swappable user-replaceable battery modules and a 3-Year Advanced Replacement warranty; neither is stated for the GXT3-4. The GXT5 provides full rack dimensions (16.9 × 18.6 × 3.4 in, 2U, 46.2 lbs) versus the PBRGXT34X1500VA's single 85 mm height figure, aiding data-center rack planning. Conversely, the PBRGXT34X1500VA specifies an on-line efficiency of up to 95% alongside its 98% ECO figure, and lists RS485, terminal block, and a local gravity-sensing LCD—interfaces and a UI not documented on the GXT5. For commercial IT closets and government procurement, the GXT5 is the clearer spec-supported choice; for installations requiring RS485/terminal-block integration or a local display, the PBRGXT34X1500VA warrants evaluation.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Vertiv PBRGXT34X1500VA | Vertiv GXT5-1500LVRT2UXL |
|---|---|---|
| UPS Topology | Online Double Conversion | Online Double Conversion |
| Capacity (VA / W) | 1500VA / 1350W | 1500VA / 1350W |
| Input Voltage (Nominal) | 120V | 120VAC |
| Input Voltage Range | 60–150V | 60–150V |
| Output Voltage | 110/115/120/125VAC ±3% (configurable) | 110/115/120/125VAC ±3% (configurable) |
| Output Waveform | — | Pure Sinewave |
| Transfer Time | — | Zero (continuous online) |
| Efficiency — ECO Mode | Up to 98% | Up to 98% |
| Efficiency — On-line Mode | Up to 95% | — |
| Output Receptacles | 6 × NEMA 5-15R (4 programmable + 2 fixed) | 6 × NEMA 5-15R (programmable groups) |
| Input Plug | NEMA 5-15P | — |
| Form Factor | Rack/Tower (height: 85 mm stated) | Rack/Tower Convertible (2U, 16.9 × 18.6 × 3.4 in) |
| Weight | — | 46.2 lbs |
| Local Display | Colored graphic LCD (gravity-sensing) | — |
| Standard Interfaces | USB, RS485, RS232, Terminal Block, Ext. Battery Connector | USB, Serial (DB9) |
| SNMP / Web Management | Optional IntelliSlot RDU120 card | Optional IntelliSlot card |
| Hot-Swap Battery | — | Yes (user-replaceable modules) |
| Operating Temperature | 32–104°F (0–40°C) | 32–104°F (0–40°C) |
| TAA Compliant | — | Yes |
| Energy Star | 2.0 Certified | 2.0 Certified |
| Additional Compliance | UL 1778 4th ed., CSA 22.2 No. 107.1, RoHS2, REACH, WEEE | — |
| EPO / Input Breaker | — | Yes (EPO + Input Circuit Breaker) |
| Warranty | — | 3-Year Advanced Replacement |
Frequently Asked Questions
Which should you choose: the PBRGXT34X1500VA or the GXT5-1500LVRT2UXL?
The GXT5-1500LVRT2UXL is the stronger choice when TAA compliance, documented hot-swap battery serviceability, and a stated warranty are procurement requirements. The GXT5 is explicitly TAA Compliant—critical for federal and SLED contracts—while the PBRGXT34X1500VA spec makes no such claim. The GXT5 also names hot-swappable user-replaceable battery modules and a 3-Year Advanced Replacement warranty; neither is stated for the GXT3-4. The GXT5 provides full rack dimensions (16.9 × 18.6 × 3.4 in, 2U, 46.2 lbs) versus the PBRGXT34X1500VA's single 85 mm height figure, aiding data-center rack planning. Conversely, the PBRGXT34X1500VA specifies an on-line efficiency of up to 95% alongside its 98% ECO figure, and lists RS485, terminal block, and a local gravity-sensing LCD—interfaces and a UI not documented on the GXT5. For commercial IT closets and government procurement, the GXT5 is the clearer spec-supported choice; for installations requiring RS485/terminal-block integration or a local display, the PBRGXT34X1500VA warrants evaluation.
Is the PBRGXT34X1500VA or GXT5-1500LVRT2UXL required for a federal government purchase?
Based on the provided specs, only the GXT5-1500LVRT2UXL is listed as TAA Compliant, which is typically required for U.S. federal, GSA Schedule, and SLED purchases under the Trade Agreements Act. The PBRGXT34X1500VA spec does not state TAA compliance, so the GXT5 is the spec-supported choice for government procurement.
Which unit is easier to service in the field—can I swap the battery without downtime?
The GXT5-1500LVRT2UXL spec explicitly states hot-swappable, user-replaceable battery modules, meaning battery replacement can be performed without powering down connected equipment. The PBRGXT34X1500VA spec does not mention battery hot-swap capability, so that serviceability feature cannot be confirmed for that unit from the available data.
Does either UPS include SNMP management out of the box, or is a card required?
Neither unit includes SNMP or web management as a standard feature. Both the PBRGXT34X1500VA and the GXT5-1500LVRT2UXL require an optional IntelliSlot network card (Vertiv Liebert IntelliSlot RDU120 is named for the GXT3-4) to enable SNMP and web-based monitoring. Both include USB and serial connectivity as standard interfaces.
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