SmartOnline S3MT-Series 3-Phase 20kVA Input Isolation Transformer, Delta 480V to 208V Wye, TAA
Part Number: S3MT-20K480V
This Model has been retired and has not been replaced. An Owner's Manual and other information for the S3MT-20K480V is available on the model support page
Features
Get Complete Step-Down and Isolation Protection and Prevent Power Disruption
Tripp Lite’s S3MT-20K480V 20kVA/kW transformer offers line isolation and protection to the connected 3-phase UPS system and its load. It isolates the UPS and connected components from line surges and spikes caused by utility power disruptions that can damage equipment or corrupt data. The step-down input isolation transformer is ideal for 4-wire (3Ph+N+PE) IT loads in government, manufacturing, healthcare and corporate settings with a 480V electrical feed and 208/120V equipment.
Performs with High Efficiency up to 96.5%
Not only is the S3MT-20K480V very efficient, with up to 96.5 percent efficiency, but it is also very quiet with a noise profile less than 65 dBA. A built-in circuit breaker on the output side helps prevent dangerous power overloads. Two ball-bearing cooling fans help prevent overheating. An overheat-sensing relay and switch combine with a red LED indicator to provide over-temperature warning and overheating protection.
Small Footprint for Quick Installation in a Compact Space
The compact footprint enables installation of the S3MT-20K480V with minimal space. The rugged stainless steel housing ships ready for immediate installation with a compatible 10–20kVA/kW Tripp Lite S3M-Series 3-phase UPS system.
Package Includes
- S3MT-20K480V 3-Phase 20kVA Input Isolation Transformer
- Owner’s manual
Specifications
OVERVIEW
| UPC Code | 037332253132 |
| Efficiency | 95% @ full load |
| Nominal Voltage / Frequency | 480V 3-PH / 60Hz |
| VA / Watt Capacity | 20000 |
| Transformer Type | Dry type, Input step-down isolation transformer |
INPUT
| Input Phase | 3-Phase |
| Nominal Input Voltage(s) Supported | 480V 3-PH Delta |
| UPS Input Connection Type | Hardwire |
OUTPUT
| Output Capacity (VA) | 20000 |
| Output Capacity (kVA) | 20 |
| Nominal Output Voltage(s) Supported | 120/208V 3-PH Wye |
| Output Receptacles | Hardwire |
PHYSICAL
| Primary Form Factor | Tower |
| Cooling Method | 2 x BALL BEARING, 120MM (288 TOTAL CFM) |
| Form Factors Supported | Tower |
| Shipping Dimensions (hwd / in.) | 54.80 x 22.20 x 37.80 |
| Unit Dimensions (hwd / in.) | 47.200 x 17.400 x 33.500 |
| Unit Weight (lbs.) | 430 |
ENVIRONMENTAL
| Heat Dissipation (BTU/Hr) @ Full Load | 3413 |
INPUT TRANSFORMER
| Input Voltage | 480V 3-PH Delta |
| Input Voltage Range | (-45%, +25%) for 40% load (-20%, +25%) for 100% load |
| Input Amp(s) | 35 A |
| AC Input Configuration | Delta |
| AC Input Frequency | 50/60 |
| Frequency Range | 40/70Hz |
| Voltage Selection | NONE |
| Input Inrush Current | 300 A |
| VA Rating | 20K |
| Input Number of Phases | 3PH |
| AC Output Voltage (V) | 120/208V 3-PH Wye |
| AC Output Amps | 75 A |
| Output Number of Phases | 3PH + N |
| AC Output Configuration | WYE |
| Output Isolation | Yes |
| Output Breaker Rating | 80 A |
| Connection Type | TERMINAL BLOCK |
| LED Warning Light Functions | The over-temperature warning LED light will turn ON when the output/secondary of the Input transformer reaches 160°C ±5°C and will turn OFF wthen the corresponding transfomer cools down to 125°C ±5°C |
| Over Temperature Reset | If the secondary side of the input transformer reaches temperatures of or higher than 160°C ± 5°C, i.e. a range of 155°C to 165°C (311°F to 329°F), an over-temperature protection relay and thermal switch will activate and will open the breaker on secondary side of the transformer. Once the transformer temperature has cooled down to 125°C ± 5°C, i.e. a range of 120°C to 130°C ( 248°F to 266°F) the warning LED light will turn OFF, and you may manually re-activate (close) the output breaker on the transformer to restart normal operation. |
| Efficiency @ Half Load | 0.965 |
| Efficiency @ Full Load | 0.95 |
| Heat Dissipation (BTU/Hr) @ Full Load | 3413 |
| Audible Noise (dBA @ 1m) | 65dB max |
APPLICATIONS
| UPS Applications | Mission Critical Applications |
OUTPUT TRANSFORMER
| Efficiency @ Half Load | 0.965 |
| Efficiency @ Full Load | 0.95 |
STANDARDS & COMPLIANCE
| Product Compliance | Trade Agreements Act (TAA) |
WARRANTY & SUPPORT
| Product Warranty Period (U.S. & Canada) | 2-year limited warranty |
Questions & Answers
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