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1. Introduction
Tripp Lite’s S3MT-100KWR480V is a 480V Wrap-Around Transformer that includes two transformers in one enclosure: a
480V (Delta) to 208V (Wye) input isolation step-down transformer and a 208V (Wye) to 480V (Wye) output auto step-up
transformer.
The input isolation transformer mitigates utility line surges and spikes, while protecting the UPS. The output auto transformer
is designed to support 480V (Wye) IT loads. This model has built-in circuit breakers to prevent dangerous circuit overloads.
Eight ball-bearing fans maintain quiet operation and help to dissipate transformer heat. An overheat-sensing relay and switch,
combined with an LED light in the front panel, provide over-temperature warning and overheating protection. The UPS system’s
small footprint and quiet acoustic profile enable installations with minimal space and noise impact. The transformer features a
rugged all-metal housing with a front panel similar to the S3M-Series 208V 3-Phase UPS line.
UPS Model Series Number Capacity Description
S3MT-100KWR480V AG-0513 100kW
Input Transformer: 480V to 208V Isolation
Step-Down Transformer
Output Transformer: 208V to 480V Auto Step-
Up Transformer
Typical applications
4-Wire (3Ph+N+PE) IT equipment loads in government, manufacturing, hospitals, industrial settings and corporate settings
that have 480V electrical mains and 480V IT loads.
Key Features
• The input step-down transformer provides 480V (Delta) to 208V/120V (Wye) isolation protection to the UPS input
• The output auto transformer provides 208V (Wye) to 480V (Wye) step-up to support 480V IT loads
• Circuit breakers at the output of the input transformer and the input of the output transformer
• Overheating warning and protection
• 96.7% to 97.8% efficiency
• Copper windings
• Wide input voltage and frequency operating range: Voltage: -20% to +25% @ 100% load and 40-70 Hz
• Insulation class: 180 material
• Reliability-tested according to ISTA-3B for vibration, shock, drop (tip test)
• UL and CSA TUV certifications
• Rugged all-metal housing shipped ready for installation
• 2-year warranty
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