Vertiv GXT5-3KL620RT2UXLN 3KVA 208V Online Double-Conversion Rack/Tower UPS
Overview
The GXT5-3KL620RT2UXLN is Vertiv's Liebert GXT5 3,000 VA / 3,000 W online double-conversion UPS in a compact 2U rack/tower form factor — a purpose-built power protection platform for 208 VAC environments where a momentary sag or brownout cannot be tolerated. Whether you are protecting a rack of network video recorders, an edge compute stack, or a telecom shelf, the on-line double-conversion topology means every connected load always runs off the UPS inverter output. Line noise, frequency drift, and sags are isolated before they ever reach your equipment — that is the core difference between true on-line and the line-interactive alternatives that still pass raw utility power under normal conditions.
The unit ships with an L6-20P input plug, making it a natural fit for the dedicated 20A/208V circuits common in data closets, server rooms, and surveillance head-end racks. Output receptacles cover two L6-15R and two L6-20R positions, giving you flexibility to mix higher-draw appliances with standard 15A loads without adapters.
Key Features
- On-Line Double-Conversion Topology: The inverter is always in the power path — no transfer time when utility power fails. For NVRs, switches, and analytics servers that drop recorded streams even on a 20ms interruption, this topology eliminates that failure mode entirely.
- 3,000 VA / 3,000 W at Unity Power Factor: A 1.0 power factor means the 3,000 VA rating translates directly to 3,000 W of usable capacity — no derating calculation needed. Size your load budget against watts, not a fractional VA-to-W conversion.
- Up to 98% Efficiency in Active ECO Mode: At 98% ECO mode efficiency, heat dissipation and operating cost are minimal for always-on deployments. On-line mode runs at up to 95%, still strong for a double-conversion design. In a 24/7 security or IT environment, efficiency directly reduces cooling load and annual energy spend.
- 208 VAC Input and Output (L6-20P / L6-15R + L6-20R): The L6-20P input plugs directly into the 20A/208V circuits already installed in most server rooms and IDF closets. Mixed output (L6-15R × 2, L6-20R × 2) accommodates both legacy 15A-rated gear and higher-draw appliances without lash-up adapters.
- Flexible Rack/Tower 2U Form Factor: At 85 mm height (2U), the GXT5-3KL620RT2UXLN mounts in a standard EIA rack or stands independently as a tower — useful when a rack has not yet been commissioned or when the deployment site uses floor-standing equipment. Gravity-sensing LCD orientation automatically adjusts the display for tower vs. rack orientation.
- Full-Color Graphic LCD with Gravity Sensing: The color LCD gives real-time UPS status at a glance — load percentage, battery health, input/output voltage — without requiring a laptop or serial connection. The gravity sensor flips the display automatically when you rotate the unit from rack to tower, a small but practical detail during commissioning.
- RDU101-Ready SNMP/Web Management: The optional Vertiv RDU101 communications card enables SNMP traps and web-based monitoring, integrating the UPS into your existing NMS or VMS health dashboard. RS232, RS485, USB, and terminal block interfaces are all present for serial out-of-band management if the card is not installed — giving you a fallback path when the network is down.
- Operating Range +32 to +122 °F (0 to 50 °C): The 50 °C upper limit covers warm equipment rooms and industrial edge deployments where HVAC is undersized or absent during off-hours. Most competing double-conversion units derate or shut down above 40 °C.
- ENERGY STAR 2.0 / UL1778 / c-UL / RoHS2 / REACH: UL1778 listing satisfies the insurance and facilities requirements common on commercial and government projects. ENERGY STAR 2.0 certification supports sustainability reporting. RoHS2 and REACH compliance cover EU and government procurement requirements without additional paperwork.
- External Battery Connector: An external battery connector port means runtime can be extended by adding external battery cabinets — practical for surveillance head-ends and comms rooms where a 5-minute runtime is not enough to cover a generator start sequence.
Integration and Compatibility
The GXT5-3KL620RT2UXLN is designed around standard 208 VAC distribution found in data centers and commercial buildings. The L6-20P input matches the most common 20A/208V circuit breaker and receptacle configuration in US server rooms and IDF closets. The four output receptacles support a mix of NVRs, managed PoE switches, access control panels, and compute nodes without stepping down to 120V gear.
SNMP integration via the optional RDU101 card allows the UPS to participate in graceful-shutdown sequences coordinated by a VMS server or hypervisor host — a critical capability for protecting recorded video data integrity during extended outages. The serial interfaces (RS232, RS485) remain available as out-of-band channels if the primary network path fails. For teams evaluating rack-mount UPS options alongside their camera infrastructure, the GXT5 line integrates with most enterprise monitoring platforms through standard SNMP MIB files. Consult a Vertiv product specialist for RDU101 card compatibility and MIB availability before provisioning your NMS.
Frequently Asked Questions
Q: What is the input plug type and circuit requirement for the GXT5-3KL620RT2UXLN?
A: The GXT5-3KL620RT2UXLN uses an L6-20P input plug, which requires a dedicated 20A/208 VAC circuit. This is the standard configuration in US server rooms and commercial IDF closets.
Q: What output receptacles are on the GXT5-3KL620RT2UXLN?
A: The unit provides two L6-15R and two L6-20R output receptacles, all at 208 VAC. This lets you connect a mix of 15A- and 20A-rated equipment without adapters.
Q: Does the GXT5-3KL620RT2UXLN support SNMP monitoring?
A: SNMP and web management are supported via the optional Vertiv RDU101 communications card. Without the card, the unit supports RS232, RS485, USB, and terminal block serial connections for out-of-band management.
Q: Can the GXT5-3KL620RT2UXLN runtime be extended with external battery cabinets?
A: Yes. The unit includes an external battery connector port that allows compatible Vertiv external battery cabinets to be added, extending runtime beyond what the internal battery alone provides.
Q: What is the efficiency rating of the GXT5-3KL620RT2UXLN?
A: Up to 98% in Active ECO mode and up to 95% in standard on-line double-conversion mode. Both figures are strong for a true on-line UPS, reducing heat output and operating cost in 24/7 deployments.
Q: Is the GXT5-3KL620RT2UXLN UL listed?
A: Yes. The unit carries UL1778 and c-UL listings, along with ENERGY STAR 2.0 certification, RoHS2, and REACH compliance.
The GXT5-3KL620RT2UXLN sits in a category that gets underspecified more often than it should — integrators reach for a line-interactive UPS to save rack space and budget, then discover that the 4–8 ms transfer time is just long enough to drop NVR write buffers and corrupt active recordings. The double-conversion architecture here eliminates that risk entirely: the inverter never leaves the power path, so there is no transfer event to trigger equipment resets.
Technical Highlights:
- Unity Power Factor (3,000 VA = 3,000 W): No derating. Your load budget in watts is the same number as the VA rating — simplifies capacity planning when you are stacking NVRs, PoE switches, and servers in the same rack.
- 98% ECO / 95% On-Line Efficiency: At 3 kW continuous, the difference between 90% and 98% efficiency is roughly 240 W of heat you either pay to cool or absorb into a tight telecom closet. The GXT5 runs cooler than older double-conversion designs of the same wattage class.
- External Battery Connector: For surveillance head-ends that need to outlast a generator start sequence — typically 30–90 seconds — the external battery port is the path to extended runtime without replacing the entire UPS. Size the battery cabinet to your generator transfer time, not just a nominal 5-minute figure.
Deployment Considerations:
- The RDU101 SNMP card is optional and sold separately — if your monitoring platform requires SNMP traps for graceful NVR shutdown on extended outage, budget for the card at project kickoff rather than as an afterthought.
- The 208 VAC output is not compatible with standard 120 VAC equipment. Verify every connected device is rated for 208V or 208–240V input before commissioning — a 120V-only power supply will fail silently or immediately on this circuit.
The GXT5-3KL620RT2UXLN is a strong fit for 208V surveillance head-end racks in commercial buildings and data closets where generator failover or extended battery runtime is required — particularly where UL1778 listing is a facilities or insurance mandate and SNMP integration into an existing NMS is on the project checklist.
