Eaton SU6000XFMR2U 6 kVA Step-down Isolation Transformer

Overview :

The Eaton SU6000XFMR2U is a step-down isolation transformer designed to convert high-voltage three-phase or single-phase AC sources to usable 120 VAC for IT equipment. It is deployed by data center electrical engineers, UPS integrators, and facilities teams to extend the utility of high-voltage UPS systems, generators, or mains feeds when 120 V power is required at the load. This accessory solves the problem of delivering local 120 V power from upstream 208 V or 240 V infrastructure without modifying existing distribution.

This transformer is rated at 6 kVA (6 kW) continuous capacity and accepts 208 VAC or 240 VAC input. It supports a L6-30P plug or hardwired connection for 30 A service and delivers multiple 120 V receptacles, including NEMA 5-15R and 5-15/20R outlets, plus a pass-through L6-30R receptacle for high-voltage loads if needed.

Physically, the SU6000XFMR2U is a 2U rackmount steel chassis engineered for installation in standard 19″ server cabinets with included rackmount hardware. It accommodates mounting above or below UPS and other active gear in data hall, telecommunications, and edge rack environments.

This transformer integrates with high-voltage UPS outputs and generators to provide localized 120 VAC power without voltage droop or significant losses, maintaining capacity for typical rack devices such as network switches, servers, and appliances. It does not provide UPS functionality itself; it is purely a transformer accessory.

A practical deployment example is pairing this transformer with a 208 V UPS in a mixed-voltage rack where the primary UPS output needs to feed both 120 V and 208 V equipment without separate distribution panels. Conversely, avoid using it in installations where direct 120 V UPS units are feasible, as this adds conversion stages and potential points of failure. Always ensure proper circuit protection and labeling in the electrical design.

Key Features

• 6 kVA / 6 kW step-down isolation transformer
• Converts 208 V / 240 V input to 120 V AC output
• Multiple 120 V outlets: NEMA 5-15/20R & 5-15R
• Rack-mountable 2U steel chassis with hardware
• Supports L6-30P plug or hardwired 30 A input

Technical Specifications