Tripp Lite S3MT-30K480V Owner’s Manual

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1. Introduction

Tripp Lite’s S3MT-20K480V and S3MT-30K480V Input isolation transformers provide 480V (Delta) to 208V (Wye) step-down

and isolation protection to the connected UPS and its load.

The transformer has input isolation to mitigate utility line surges and spikes, while protecting the UPS. The transformer includes

a built in breaker at the transformer output side for protection. Two ball-bearing fans maintain quiet operation. An overheat-

sensing relay and switch combine with a warning light to 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. All

transformer models feature rugged stainless steel housings with front panels similar to the S3M-Series 208V 3-Phase UPS line.

UPS Model Series Number Capacity Description

S3MT-20K480V AG-050B 20kW 480V to 208V Input Isolation Transformer

S3MT-30K480V AG-050C 30kW 480V to 208V Input Isolation Transformer

Typical applications

4-Wire (3Ph+N+PE) IT equipment loads in government, manufacturing, hospitals, industrial settings and corporate settings

that have a 480V electrical feed and 208V/120V IT Loads.

Key Features

• Isolation protection to the UPS input, with stepped-down input from 480V (Delta) to 208V/120V (Wye)

• Circuit breaker and overheating protection

• 95% to 97.5% efﬁciency

• Wide input voltage and frequency operating range

Voltage: -20% to +25% @ 100% load and 40-70 Hz

• Insulation class: 180°C material

• Reliability-tested according to ISTA-3B for vibration, shock, drop (tip test)

• UL and CSA TUV certiﬁcations

• Rugged stainless steel housing shipped ready for installation

• 2-year warranty

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Tripp Lite S3MT-30K480V SmartOnline S3MT-Series 3-Phase 30kVA Input Isolation Transformer