Vertiv GXT5LI-5KL630RT3UXLN Lithium-Ion 5000VA Online Rack UPS

Overview

The Vertiv GXT5LI-5KL630RT3UXLN is a 5000 VA / 4900 W double-conversion online UPS built around a lithium-ion battery in a 3U rack form factor. At 103 lbs and 35 inches deep, it occupies a defined physical footprint in standard 19-inch rack cabinets — plan accordingly. The L6-30P input plug and 208 VAC default output make it a direct fit for mid-density server and network equipment loads running on 208V single-phase circuits. Output voltage is user-configurable from 200–240 VAC at ±1% regulation, which covers a range of load equipment tolerances without additional step-up or step-down transformers. If you've been evaluating Vertiv UPS systems for a rack-dense environment, this model targets the 5 kVA tier where lithium-ion runtime-per-pound becomes a meaningful operational factor.

Key Features

• Double-Conversion Online Topology: True online double-conversion means every watt flowing to your load passes through the inverter continuously — no transfer time to battery during a sag or outage. For servers, storage arrays, and network switches that are sensitive to even a 4–8 ms gap, this eliminates the transfer window entirely, unlike line-interactive designs.
• 5000 VA / 4900 W Power Rating: The near-unity power factor (4900 W at 5000 VA = 0.98 pF) means you can load this UPS close to its full VA rating without hitting a wattage ceiling first. Many comparable VRLA-based units derate to 0.9 pF or lower, so you effectively get more usable capacity at the same nameplate VA.
• Lithium-Ion Battery Chemistry: Li-ion batteries charge faster, last longer between replacements, and tolerate higher ambient temperatures than VRLA equivalents — reducing both planned downtime for battery swaps and the frequency of those events over the UPS service life. The operating temperature ceiling of 104°F (40°C) reflects this chemistry advantage; note the 10% derating above 50°C if the unit will ever be pushed into hot-aisle environments.
• User-Configurable Output Voltage (200–240 VAC): Being able to set output to 200, 208, 220, or 240 VAC without external hardware makes this unit deployable across mixed international equipment environments in a single rack — useful for data centers running both domestic and imported gear on the same UPS.
• L6-30P Input Wiring: The GXT5LI-5KL630RT3UXLN ships with an L6-30P plug, the standard twist-lock connector for 208V/30A circuits. Confirm your PDU or wall receptacle is wired for L6-30 before ordering — rewiring to a different input configuration requires either a Vertiv input cord kit or licensed electrical work.
• 3U Rack Mount, 35-Inch Depth: At 35 inches deep, this unit requires a rack with at least 36 inches of usable interior depth. Shallow-mount two-post racks or wall-mount enclosures under 24 inches deep will not work. Verify rack depth before deploying — 103 lbs on a mis-sized two-post frame is a real structural and safety issue.
• Regulatory Compliance: UL 1778 listing (the US standard for UPS equipment) plus FCC Part 15 Class A and IEC 62040-1/62040-2 dual-certify this unit for US and international data center deployments. IEC 62619 (lithium secondary cell safety) certification specifically addresses the battery chemistry, which matters for facilities with strict fire-code requirements around Li-ion equipment.
• Input Voltage Range 200–240 VAC: The wide input range tolerates supply voltage variation without switching to battery, extending battery life in facilities where utility power quality fluctuates between nominal and ±10% without going out entirely.

Integration and Compatibility

The 208 VAC default output and L6-30P input target standard US 208V single-phase branch circuits common in co-location facilities, enterprise server rooms, and network equipment rooms. The user-configurable output (200–240 VAC ±1%) provides flexibility for environments where downstream equipment has different nominal voltage requirements. At 5.25 inches tall, the GXT5LI-5KL630RT3UXLN fits a standard 3U rack slot in EIA-310 19-inch cabinets. Pair it with a compatible online UPS and power protection lineup or upstream it from a managed network switch rack to consolidate your power protection budget at the rack level. For guidance on sizing UPS capacity against actual load requirements, see the UPS selection guide. Facilities requiring NEMA 5-15 or 5-20 output receptacles should verify the output receptacle configuration of this model — the evidence confirms L6-30P input and 208 VAC output but does not specify output receptacle type; confirm with Vertiv documentation before provisioning downstream outlet strips. For larger deployments or three-phase requirements, evaluate the broader Vertiv Liebert UPS family for higher-capacity alternatives.

Frequently Asked Questions

Q: What input plug does the GXT5LI-5KL630RT3UXLN require?

A: The GXT5LI-5KL630RT3UXLN ships with an L6-30P input plug, designed for 208V/30A twist-lock receptacles. Verify your circuit and PDU receptacle configuration before installation.

Q: Can the output voltage be changed from 208 VAC?

A: Yes. Output voltage is user-configurable from 200–240 VAC at ±1% regulation, so it can be set to match equipment with different nominal voltage requirements without external transformers.

Q: What certifications does the GXT5LI-5KL630RT3UXLN carry?

A: The unit is UL 1778 listed, FCC Part 15 Class A certified, IEC 62040-1 and IEC 62040-2 compliant, and IEC 62619 certified for lithium-ion battery safety. It also meets IEC 61000-3-2, IEC 61000-3-12, and CISPR22 Class A for conducted/radiated emissions.

Q: What is the operating temperature range?

A: Rated 32°F to 104°F (0°C to 40°C) for normal operation. A 10% capacity derating applies above 50°C — relevant in hot-aisle environments without adequate cooling.

Q: Will this UPS fit in a standard 19-inch rack?

A: Yes — it occupies 3U (5.25 inches tall) in a standard 19-inch EIA-310 cabinet. However, at 35 inches deep and 103 lbs, the rack must have at least 36 inches of usable interior depth and sufficient weight-bearing capacity. Shallow two-post or wall-mount enclosures under 24 inches are not compatible.

Q: Why choose lithium-ion over a comparable VRLA UPS at this power rating?

A: Li-ion batteries charge faster, tolerate higher ambient temperatures, and have a longer service life between replacements compared to VRLA. This reduces planned downtime for battery maintenance over the unit's operational life — a meaningful factor in 24/7 environments where battery swap windows require coordinated load transfers.

James Everett

The GXT5LI-5KL630RT3UXLN sits in an interesting spot in the Vertiv Liebert GXT5 line: 5000 VA double-conversion online with a 0.98 power factor — meaning 4900 W of usable real power against that nameplate. In practice, that near-unity PF is what separates this unit from older 0.8 or 0.9 pF designs at the same VA rating, and it directly changes how you size circuits and downstream distribution for a rack build.

Technical Highlights:

• Near-Unity Power Factor (0.98): At 5000 VA / 4900 W, the gap between apparent and real power is only 100 W — compared to 1000 W on a 0.8 pF UPS of identical VA rating. You're not buying phantom capacity; almost every VA purchased is a watt you can deploy to load equipment.
• IEC 62619 Li-Ion Certification: This standard specifically governs secondary lithium cells in stationary energy storage — not just any Li-ion certification. In facilities subject to NFPA 855 or local fire-code review, an IEC 62619-certified battery is the documentation your AHJ will ask for. Don't underestimate how often this question comes up during data center permitting.
• 200–240 VAC User-Configurable Output at ±1%: The ±1% output regulation means load equipment sees a tightly controlled voltage regardless of what the utility is doing within the 200–240 V input window. For sensitive networking gear or storage controllers, that stability is more relevant than the specific nominal voltage chosen.

Deployment Considerations:

• At 103 lbs and 35 inches deep, this unit requires a four-post rack with proper weight distribution and slide rail support. Don't plan on single-person installation — two-person lift and a proper rail kit are non-negotiable at this weight class.
• The 10% derating above 50°C is a real gotcha in hot-aisle/cold-aisle setups where the UPS is positioned near the hot aisle. If your rack ambient regularly exceeds 40°C, factor the derating into your capacity math before load provisioning.

This unit is well-matched to a single high-density server rack or a 2–4 rack network equipment room where 208V single-phase branch circuits are already in place and the facility needs double-conversion isolation without the commissioning complexity of a three-phase system.