Description
Tripp Lite by Eaton SU20KXFMRT4U: 18kVA 18kW 4U Step-Down Isolation Transformer
Power reliability meets robust protection with Tripp Lite by Eaton’s SU20KXFMRT4U. This 18 kVA, 18 kW step-down isolation transformer converts 208 or 240V at 60 Hz from generators, utilities, or UPS high-voltage sources into a safe, clean 240/120V split-phase output. Built for demanding environments—data centers, network closets, laboratories, and professional AV installations—it delivers dependable power while minimizing electrical noise, ground loops, and transient spikes that can threaten sensitive equipment. The unit’s 4U footprint fits neatly into standard 4-post racks, and its hardwire input/output design simplifies installation while meeting strict electrical codes. With true isolation between source and load, the SU20KXFMRT4U protects critical devices from interference and damage, extending equipment lifespan and reducing downtime in mission-critical operations.
- Reliable power conversion in a rugged 18 kVA / 18 kW step-down isolation transformer. It accepts 208V or 240V input at 60 Hz and delivers a clean, isolated 240/120V split-phase output to support a wide range of equipment—from servers and switches to audio-visual gear and lab instruments. The transformer maintains voltage stability under load, helping equipment operate at peak performance even when the source voltage fluctuates.
- True isolation and surge protection for sensitive gear. By providing an isolated winding between source and load, this transformer minimizes common-mode noise and grounds loops, reduces electrical noise on critical circuits, and guards against damaging transients. This isolation helps improve signal integrity for communications equipment, labs instrumentation, and high-precision test gear, contributing to more reliable data and results.
- 4U rack-mount ready with secure, hardwired connections. The SU20KXFMRT4U is designed for simple, code-compliant installation in 4-post racks. It features hardwire input connections and a hardwired 240/120V output, enabling clean cable management, improved protection against accidental disconnections, and a professional installation aesthetic suitable for data centers and enterprise environments.
- High-capacity performance for critical loads. With 18 kVA / 18 kW capacity, the transformer supports substantial load demands without sacrificing efficiency or response time. It’s well-suited for data centers, network equipment rooms, voice/data installations, UPS configurations, and other environments where consistent, high-quality power is essential for uptime and equipment longevity.
- Industrial-grade design for reliability and long service life. The SU20KXFMRT4U combines a rugged metal enclosure with meticulous windings and insulation, engineered for continuous operation in demanding environments. The unit’s sturdy construction, precise tolerances, and durable mounting options make it a dependable backbone for power distribution that can survive the rigors of daily use and occasional maintenance cycles.
Technical Details of SU20KXFMRT4U
- Model: SU20KXFMRT4U
- Input Voltage: 208V or 240V
- Input Frequency: 60 Hz
- Output Voltage: 240V / 120V split-phase
- Output Power: 18 kVA / 18 kW
- Topology: Step-down isolation transformer
- Connection Type: Hardwired input; hardwired output
- Form Factor: 4U rack-mount
- Mounting: 4-post rack with included brackets
- Protection: Isolated windings to reduce noise and protect attached equipment
how to install Tripp Lite SU20KXFMRT4U
- Plan placement in a suitable 4-post rack, ensuring adequate clearance for ventilation and service access. Verify that the rack space complies with local electrical codes and allows for proper cable routing to minimize interference and heat buildup.
- Mount the transformer securely in the 4U rack using the included mounting brackets. Confirm that the enclosure is level and firmly fastened to prevent movement during operation or maintenance.
- Prepare the electrical connections by identifying the hardwire input conductors and the designated hardwire output terminals. Use appropriately rated wiring and terminal lugs suitable for the transformer’s voltage and current requirements.
- Connect the 208V/240V input source to the hardwired input terminals, ensuring correct polarity and grounding. Verify that the supply is within the specified 60 Hz frequency range and that the source can sustain the expected load without excessive voltage sag.
- Connect the 240V/120V loads to the transformer’s hardwired output terminals. Group circuits logically to simplify protection coordination, and ensure all connected equipment is designed for 240V split-phase operation with proper grounding.
- Bond the transformer enclosure to the building ground and verify proper grounding at all connected devices. Perform a thorough visual inspection of all connections, tighten terminals to the manufacturer’s torque specifications, and confirm there are no loose cables.
- Power up the system and perform a preliminary load test with equipment representing typical operating conditions. Use a multimeter to verify output voltages remain within acceptable tolerances under load and monitor for unusual heat buildup or abnormal noise.
- Document the installation, including input/output voltages, load ratings, and peak current requirements. Schedule periodic inspections and electrical testing per local codes and facility policies to maintain performance and safety over the transformer’s service life.
Frequently asked questions
- Q: What does this transformer do? A: It converts 208V or 240V, 60 Hz input into a 240V/120V split-phase output while providing isolation between source and load to protect equipment and reduce electrical noise.
- Q: What equipment is compatible with the SU20KXFMRT4U? A: This unit is ideal for data center gear, network infrastructure, server rooms, telecom equipment, laboratory instruments, and professional AV setups that require reliable 240/120V power from higher-voltage sources.
- Q: Why is isolation important? A: Isolation minimizes ground loops and common-mode noise that can cause data errors, audio/video interference, and component wear. It also helps shield protected devices from spikes and transients on the source line.
- Q: How much power can it handle? A: The transformer delivers up to 18 kVA / 18 kW, supporting substantial loads while preserving voltage stability under typical operating conditions.
- Q: How is it installed? A: It is designed for 4-post rack installation with hardwired input and hardwired output. Professional installation should follow local electrical codes, with attention to grounding, wire sizing, and appropriate overcurrent protection.
- Q: Can it support generator or UPS input? A: Yes. The SU20KXFMRT4U is suitable for use with 208/240V sources from generators or UPS systems, converting to a stable 240/120V output for protected equipment.
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