Vertiv ITA2-20KRT208C 20KVA 3-Phase Rack-Mount UPS with Unity Card
Overview
The Vertiv Liebert ITA2-20KRT208C is a 20KVA/KW, three-phase online UPS designed for data centers, network rooms, and critical infrastructure deployments running 208/120VAC distribution. Built around a 4W+G wiring configuration and rated at true unity power factor, this unit delivers its full 20kW of real power output — no derating penalty you'd face with legacy 0.8 pf UPS designs. The included Unity Card extends remote monitoring and integration capabilities directly out of the box. For teams evaluating the Vertiv power protection line, the ITA2-20KRT208C positions between lighter single-phase alternatives and heavier three-phase modular systems, making it a practical fit for mid-tier critical loads.
Key Features
- 20KVA at Unity Power Factor: A 1.0 power factor means the rated 20KVA translates to 20kW of actual usable load capacity — you're not left with a 16kW ceiling like older 0.8 pf designs. Size your protected load to the full nameplate without guesswork.
- 208/120VAC Three-Phase Output: Supports 4W+G (four-wire plus ground) distribution, which means you can feed both 208V single-phase branch circuits and 120V single-phase loads from a single UPS — common in mixed server and networking environments without requiring a separate step-down transformer.
- 93% Efficiency: At 93% efficiency under rated load, heat dissipation and operating costs stay manageable. On a 20kW UPS running continuously, the difference between 90% and 93% efficiency is roughly 600W of saved heat — meaningful in a space-constrained equipment room where every BTU counts toward HVAC load.
- Unity Card Included: The integrated Unity Card provides network-based monitoring and management without an additional accessory purchase. This is the communication interface for connecting the UPS to your DCIM platform, NMS, or building management system — budget-conscious deployments benefit from having this ready on arrival.
- Input Voltage Range 208/220VAC: Accepts both 208V and 220V three-phase input, giving flexibility in facilities where the utility feed varies or where you're deploying across sites with slightly different distribution standards.
- Rack-Mount Form Factor: Engineered for rack-mount UPS installations in standard equipment racks, consolidating power protection within the same footprint as the protected equipment. Eliminates the floor space penalty of a tower UPS in a dense rack environment.
Integration and Compatibility
The ITA2-20KRT208C is suited for environments running virtualized server clusters, network switching infrastructure, and storage arrays where three-phase input is available and load continuity is non-negotiable. The Unity Card supports integration with common UPS management and monitoring platforms, enabling graceful shutdown automation and runtime reporting without additional hardware. If your facility uses a centralized power distribution unit (PDU) architecture downstream of the UPS, the 208/120VAC 4W+G output feeds standard three-phase PDUs directly. For teams planning load sizing, verify downstream circuit requirements against the 20KVA nameplate — actual runtime will depend on battery configuration and connected load, which should be confirmed against the full product specification sheet from Vertiv.
Frequently Asked Questions
Q: What is the output power factor of the ITA2-20KRT208C?
A: The ITA2-20KRT208C operates at unity (1.0) power factor, meaning the full 20KVA rating translates to 20kW of real power output. There is no derating for power factor as found in older 0.8 pf UPS designs.
Q: What input voltage does the ITA2-20KRT208C accept?
A: The unit accepts 208V and 220VAC three-phase input, accommodating typical North American three-phase distribution and international sites with 220V feeds.
Q: Is the Unity Card included with the ITA2-20KRT208C?
A: Yes, the Unity Card is included with the ITA2-20KRT208C. It provides network monitoring and management integration without requiring a separate accessory purchase.
Q: What wiring configuration does the ITA2-20KRT208C use?
A: The ITA2-20KRT208C uses a 4W+G (four-wire plus ground) wiring configuration, supporting both 208V and 120VAC single-phase branch circuits from the same three-phase UPS output.
Q: What is the efficiency rating of the ITA2-20KRT208C?
A: Efficiency is rated at 93% under load, reducing heat output and ongoing operating costs compared to less efficient UPS designs in the same power class.
Q: Can the ITA2-20KRT208C be rack-mounted?
A: Yes, the ITA2-20KRT208C is designed for rack-mount installation in standard equipment racks, consolidating power protection within the same rack footprint as protected servers, switches, and storage.
The detail that stands out most on the ITA2-20KRT208C is the unity power factor — in a 20KVA class, that distinction matters at spec time. You're writing an actual 20kW onto your protected load budget, not the 16kW ceiling that 0.8 pf predecessors leave you with after derating. For teams sizing UPS capacity against server room draw, that 4kW delta often means the difference between one unit and two.
Technical Highlights:
- Unity Power Factor (1.0): 20KVA equals 20kW real power — no derating, no hidden headroom loss when planning protected load capacity.
- 93% Efficiency: At full 20kW load, 93% efficiency keeps waste heat under 1.5kW — roughly 5,100 BTU/hr — a realistic number to hand your facilities team for HVAC load planning.
- 4W+G Three-Phase Output at 208/120VAC: A single UPS feeds both 208V server loads and 120V peripheral circuits without a step-down transformer in the distribution path, simplifying the power architecture in mixed-load racks.
Deployment Considerations:
- Confirm upstream feed capacity: the ITA2-20KRT208C accepts 208V or 220V three-phase input, so verify your facility's panel configuration before commissioning — mismatched feed voltage is a day-one commissioning issue, not a field adjustment.
- Battery runtime is not specified in the available evidence — contact the pre-sales engineering team or reference the full Vertiv datasheet to model runtime against your specific connected load before finalizing the UPS selection.
This unit is a practical fit for mid-size colocation suites, dedicated network operations rooms, or edge data center deployments where three-phase input is already in the ceiling and the load profile is mixed 208V/120VAC — the included Unity Card means remote monitoring is live from day one without sourcing a separate communication module.
