TRIPP-LITE S3MT-60KWR480V S3MT-Series 3-Phase Input and Output Transformers Owner’s Manual
- June 6, 2024
- Tripp Lite
Table of Contents
S3MT-60KWR480V S3MT-Series 3-Phase
Input and Output Transformers
Owner’s Manual
Models: S3MT-30KWR480V, S3MT-60KWR480V
WARRANTY REGISTRATION
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Copyright © 2021 Tripp Lite. All rights reserved.
Introduction
Tripp Lite’s S3MT-30KWR480V and S3MT-60KWR480V are 480V wrap-around models
that include 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 autotransformer is designed to support 480V
(Wye) IT loads. These models have built-in circuit breakers to prevent
dangerous circuit overloads. Four ball-bearing fans for S3MT-30KWR480V and
eight ball-bearing fans for S3MT- 60KWR480V maintain quiet operation and help
to dissipate transformer heat. An overheat-sensing relay and thermal 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. All
transformer models feature stainless steel housings with front panels similar
to the S3M-Series 208V 3-Phase UPS line.
| UPS Model | Series Number | Capacity | Description |
|---|
S3MT-30KWR480V
(Not compatible with
SUT2OK or SUT3OK UPS)| AG-0511| 30kW| input Transformer: 480V to 208V
Isolation Step-Down Transformer
Output Transformer: 208V to 480V Auto Step-Up Transformer
S3MT-60KWR480V
(Not compatible with
SUT4OK or SUT6OK UPS)| AG-0512| 60kW| 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 autotransformer 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
- 95.2% 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
Typical Configurations
The 480V Wrap-Around (WR) Transformer includes both the input (T-in) and
output (T-out) transformers in one enclosure.
These 480V Transformers
may be purchased separately or as part of a kit model with a Tripp Lite S3M
Series 3-Phase UPS:
Wrap-Around Transformer Models| Maximum
Constant Load| Compatible with
208V 3Ph UPS| Kit Models: UPS + Transformer
---|---|---|---
Kit Models| Kit Models Include
480V| S3MT-30KWR480V| 30kW| 20-30kW UPS
(Not compatible with
SUT2OK or SUT30K)| S3M30K-30KWR4T| S3M3OK UPS +
S3MT-30KWR480V
S3MT-60KWR480V| 60kW| 50 60kW UPS
(Not compatible with
SUT4OK or SUT60K)| S3M50K-60KWR4T| S3M5OK UPS +
S3MT-60KWR480V
S3M60K-60KWR4T| S3M6OK UPS +
S3MT-60KWR480V
Important Safety Warnings
SAVE THESE INSTRUCTIONS
This manual contains important instructions for models S3MT-30KWR480V and
S3MT-60KWR480V that should be followed during the installation and maintenance
of the transformer and UPS.
CAUTION! Risk of electrical shock! Hazardous live parts inside this unit
are energized from the transformer even when the breaker is turned off.
WARNING! The unit is intended for installation in a controlled
environment.
CAUTION! A transformer can present a risk of electric shock and a high
short circuit current. The following precaution should be observed when
working on the transformer:
- Remove watches, rings, or other metal objects.
- Use tools with insulated handles.
To reduce the risk of electric shock, disconnect the transformer and UPS from
the main supply before performing maintenance or service.
Servicing of the 3-phase transformer and UPS should be performed by Tripp Lite
certified personnel with knowledge of the 3-phase transformer and UPS and all
required precautions.
The transformer is extremely heavy. Caution should be taken in moving and
positioning equipment. The instructions contained within this manual are
important and should be closely followed at all times during installation and
follow-up maintenance of the 3-phase transformer and UPS.
CAUTION!
The transformer has a dangerous level of heat. If the transformer’s front-
panel red LED indicator is on, the unit’s outlets may have a dangerous level
of heat.
All servicing on this equipment must be carried out by Tripp Lite-certified
service personnel.
Before conducting any maintenance, repair, or shipment, first, ensure
everything is turned off completely and disconnected.
Special Symbols – The following symbols are used on the transformer to
warn you of precautions:
RISK OF ELECTRIC SHOCK – Observe the warning that a risk of electric shock is
present.
****CAUTION – REFER TO OWNER’S MANUAL for information regarding important
operating and maintenance instructions.
SAFE GROUNDING TERMINAL – Indicates THE primary safe ground.
Installation
Mechanical Data
Physical Requirements
Leave space around the cabinet for operation and ventilation (Figure 3-1):
- Leave at least 23.6 in. (600 mm) space in the front for ventilation
- Leave at least 20 in. (500 mm) space at the right and left for the operation
- Leave at least 20 in. (500 mm) space at the back for ventilation
Package Inspection
- Don’t lean the transformer cabinet when removing it from the packaging.
- Check the appearance to see if the transformer cabinet was damaged during transport. Do not power on the transformer cabinet if any damage is found. Contact the dealer immediately.
- Check the accessories against the packing list and contact the dealer in case of missing parts.
Unpacking the UPS
-
Hold the sliding plate steady. Cut and remove the binding straps (Figure 3-2).
-
Remove the plastic bag and the outer carton (Figure 3-3).
-
Remove the foam packing material and the beveled pallet (Figure 3-4).
-
Remove the screws securing the cabinet to the pallet (Figure 3-5).
-
Lift the cabinet with a forklift and remove the packing pallets (Figure 3-6).
Package Contents
| Contents | TL P/N | S3MT-30KWR480V | S3MT-60KWR480V |
|---|---|---|---|
| Input and Output Transfers in One Cabinet | 1 | 1 | |
| Owner’s Manual | 933D04 | 1 | 1 |
| Bottom Skirts | 103922A | 2 | 2 |
| Bottom Skirts | 103923A | 2 | 2 |
| Screws for Skirts | 3011C3 | 24 | 24 |
Cabinet Overview
1 Output Transformer Over-Temperature Alarm LED| 6 Output Transformer
Breaker with Trip
---|---
2 Input Transformer Over-Temperature Alarm LED| 7 Input Transformer Cabling
Terminal
3 Output Transformer Cooling Fans| 8 Output Transformer Cabling Terminal
4 Input Transformer Cooling Fans| 9 Bottom Entry Knockouts (for Power Cable
Entry and Exit)
5 Input Transformer Breaker with Trip
Power Cables
The cable design shall comply with the voltages and currents provided in this
section, and in accordance with local electrical codes.
WARNING!
UPON STARTUP, ENSURE YOU ARE AWARE OF THE LOCATION AND OPERATION OF THE
EXTERNAL ISOLATORS CONNECTED TO THE UPS INPUT/BYPASS SUPPLY OF THE UTILITY
DISTRIBUTION PANEL.
ENSURE THESE SUPPLIES ARE ELECTRICALLY ISOLATED AND POST ANY NECESSARY WARNING
SIGNS TO PREVENT INADVERTENT OPERATION.
Cable Sizes
| UPS Model | Cable Sizes (THHW wiring at 75°C) |
|---|---|
| AC Input | AC Output |
| Gauge | Torque |
| S3MT- 30KWR480V | Input transformer |
6AWG
Max.
3 AWG| 6.5N•m| 3 AWG
Max.
3 AWG| 6.5N•m| 3 AWG
Max.
3 AWG| 6.5N • m| 3 AWG
Max.
3 AWG| 6.5N •rn
Output transformer
6AWG
Max.
3 AWG| 6.5N•m| 3 AWG
Max.
3 AWG| 6.5N •rn| 3 AWG
Max.
3 AWG| 6.5N •rn| 3 AWG
Max.
3 AWG| 6.5N•m
UPS Model| Cable Sizes (THHW wiring at 75°C)
---|---
AC Input| AC Output| Neutral| Grounding| Lug
Gauge| Torque| Gauge| Torque| Gauge| Torque| Gauge| Torque|
S3MT- 60KWR480V| Input transformer
50mm2
Max.
50mm2x2| 25N•m| 50mm2 x2
Max.
50mm2 x2| 25N•m| 70mm2x2
Max.
70mm2x2| 25N•m| 50mm2
Max.
50mm2 x2| 25N •rn| M8
Output transformer
50mm2
Max.
50mm2x2| 25N•m| 50mm2 x2
Max.
50mm2 x2| 25N•m| 70mm2x2
Max.
70mm2x2| 25N •rn| 50mm2
Max. 50
mm2 x2| 25N •rn| M8
Input and Output Transformer-to-UPS Connection Line Diagram
Connections are shown below for the cabinet with a built-in input isolator
transformer, output autotransformer, and breakers with trip and fault
LED.
Multiple Transformer Connections
WARNING:
The input transformer (T-in) output neutral is not bonded to the chassis
ground. Please provide a means to connect the transformer chassis ground to
the transformer output neutral.
Note: The transformer chassis ground must be connected to the earth
ground.
IMPORTANT: You may view and/or download this manual from the
tripplite.com website to view the cable connections in colors.
S3MT-30KWR480V Connections for 20kVA to 30kVA 208V UPS Systems
Note: This transformer is not compatible with SUT20K and SUT30K UPS
models. 
Transformer Cabinet
Note: The transformer input is Delta 3-Wire (3Ph + Ground) and the output
transformer is Wye 4-Wire (3Ph + N + Ground).
S3MT-60KWR480V Connections for 50kVA or 60kVA UPS Systems
Note: This transformer is not compatible with SUT40K and SUT60K UPS
models.
WARNING:
The input transformer (T-in) output neutral is not bonded to the chassis
ground. Please provide a means to connect the transformer chassis ground to
the transformer output neutral.
Note: The transformer chassis ground must be connected to the earth
ground.
IMPORTANT: You may view and/or download this manual from the
tripplite.com website to view the cable connections in colors.
Transformer Cabinet
Note: Transformer input is Delta 3-Wire (3Ph + Ground) and output
transformer is Wye 4-Wire (3Ph + N + Ground).
Operation
Over-Temperature Protection
Over-Temperature Warning LED Light (Red)
The transformer includes two warning LED lights on the top portion of the
front panel: one light for the input transformer and one light for the output
transformer. The corresponding warning light will turn ON when the secondary
side of the input (T-in) or when the primary side of the output (T-out)
transformer reaches a temperature of 160°C ± 5°C, i.e. a range of 155°C to
165°C (311°F to 329°F). The warning light turns OFF when the transformer cools
to a temperature of 125°C ± 5°C, i.e. a range of 120°C to 130°C (248°F to
266°F).
Over-Temperature Protection Relay and Thermal Switch
The transformers include an over-temperature protection relay and thermal
switch on the secondary sides of the input (T-in) and on the primary side of
the output (T-out) transformer to protect the transformer from overheating.
- Input Transformers (T-in): If the secondary side of the (T-in) input transformer reaches temperatures of 160°C ± 5°C, i.e. a range of 155°C to 165°C (311°F to 329°F), and over-temperature protection relay and the thermal switch will activate and will open the breaker on the 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 Reactivate (close) the output breaker on the transformer to restart normal operation.
- Output Transformers (T-out): If the primary side of the (T-out) output transformer reaches temperatures of 160°C ± 5°C, i.e. a range of 155°C to 165°C (311°F to 329°F), and over-temperature protection relay and the thermal switch will activate and will open the breaker on the primary 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 input breaker on the transformer to restart normal operation.
Specifications
| Models | S3MT-30KWR480V | S3MT-60KWR480V |
|---|---|---|
| Description | Two 30kW Transformer in one Cabinet: |
Input Isolation Transformer (T-In)
480V Input (Delta) to 208V Output
(Wye) Transformer, and Output Auto
Transformer (T-Out) 208V (Wye) Input
to 480V (Wye) output| Two 60kW Transformer in one Cabinet:
Input IsolationTransformer (T-In)
480V Input (Delta) to 208V Output
(Wye) Transformer, and Output Auto
Transformer (T-Out) 208V (Wye) Input
to 480V (Wye) output
KVA/kW Ratings for Input (T in) and Output (T-out) Transformers| 30kVA/30kW|
60kVA/30kW
Transformer Type| Dry-Type
INPUT SPECS of BOTH TRANSFORMERS
Input Transformer(T-In)| T-in Input Voltage| 480V| 480V
T-in Input Voltage Range| -45%,+25%) for 40 % load
(-20%,+25%) for 100 % load| (-45%,+25%) for 40 % load
(-20%,+25%) for 100 % load
T-in Input Amp(s)| 51A| 101A
T-in Input No. Of Phases| 3PH| 3 PH
T-in Input Connections| 3-Wire (L1, L2, L3 + PE)| 3-Wire (L1, L2, L3 + PE)
T-in AC Input Configuration| Delta| Delta
T-in !put Connection Type| Copper Bar| Copper Bar
T-in AC Input Frequency| 50/60| 50/60
T-in Frequency Range| 40/70 Hz| 40/70 Hz
T-in Voltage Selection| N/A| WA
Voltage Drop Ratio: Output with no load to output with Full Load| 3%
T-In Input Isolation| Yes
T-in Input Inrush Current| d010A (10 ms)| I 920A (10 ms)
Output Transformer(T-Out)| T-out Input Voltage Range| (-45%,+25%) for 40 %
load (-20%,+25%) for 100 % load
T-out Input Voltage| 208V
T-out Input Amp(s)| 87A| 173A
T-out No. Of Phases| 3PH| 3PH
T-out Input Connections| 4-Wire (L1, L2 L3 + N + PE)
T-out AC Input Configuration| WYE
T-out Input connection type| Copper Bar| Copper Bar
T-out AC Input Frequency| 50/60| 50/60
T-out Frequency Range| 40/70 Hz| 40-70 Hz
T-out Voltage Selection| N/A| WA
T-out Input Isolation| No
T-out Input Inrush Current| 1010A (10 ms)| 2020A (10 ms)
Models| S3MT-30KWR480V| S3MT-60KWR480V
---|---|---
T-out Input Isolation
Input Transformer(T-In)| T-in AC Output Voltage (V)| 208V| 208V
T-in AC Output Amps| 113A| 225A
T-in Output No. Of Phases| 3PH| 3PH
T-in Output Connections| 4-Wire (L1, L2, L3 +N + PE)
T-in AC Output Configuration| Me| Me
T-in Connection Type| Copper Bar| Copper Bar
T-in Output Breaker Rating| 125A| 250A
Output Transformer(T-Out)| T-out AC Output Amps| 36A| 72A
T-out output No. Of Phases| 3PH| 3PH
T-Out Output Connections| 4-Wire (L1, L2, L3 + N + PE)
T-out AC Output Configuration| Me| Me
T-out Connection Type| Copper Bar| Copper Bar
T-in Output Breaker Rating| 125A| 250A
Operation
| Over-Temperature Warning LED Light (Red)| Turns ON at 160°C±-5°C
(155°C/311°F to 165°C/329°F) and
turns OFF at 125°C ±5°C (120°C/248°F to 130°C/266°F)
Over-Temperature Protection Reset Device| T-in: Input Transfomer
•Transfomer output/ secondary will be OFF (Breaker opens) at 160°C ±5°C
(155°C/311°F to 165°C/329°F).
•You may turn ON (close) output breaker manually when the LED Light turns OFF.
•The warning Light will turn off at 125°C ±5°C (120°C/248°F to 130°C/ 266°F),
at which time you may close the breaker manually to re-start operations.
T-out: Output Transformer
•Transformer input/primary will be OFF (Breaker opens) at temperatures of
160°C ±5°C (155°C/311°F to 165°C/329°F).
•You may turn ON (close) input breaker manually when the LED light turns OFF.
•The Warning LED Light will turn off at 125°C ±5°C (120°C/248°F to 130°C/
266°F), at which time you may close the breaker manually to re-start
operations.
Insulation Class| 180°C
Temperature Rise| 125°C
T-in Efficiency @ Full Load| 95.%| 97.%
T-in Efficiency @ Half Load| 98.%| 98.%
T-out Efficiency @ Full Load| 95.%| 97.%
T-out Efficiency @ Half Load| 98.%| 98.%
Models| S3MT-30KWR480V| I S3MT-60KWR480V
---|---|---
Physical Information
| Unit Height (Inches/cm)| 63/160
Unit Width (Inches/cm)| 23.6/60
Unit Depth (Inches/cm)| 33.5/85.1
Unit Weight (Lbs./Kg)| 961/436| 1398/634
Floor Loading| 855 kg/m2| 1243 kg/m2
Unit Carton Height (Inches/cm)| 70.9/180.1
Unit Carton Width (Inches/cm)| 27.6/70.1
Unit Carton Depth (Inches/cm)| 37.8/96
Unit Carton Weight (Lbs./Kg)| 1058/479.9| 1510/684.9
Tip-n-Tell Label Required (Y/N)| Yes
Audible Noise (ENG)| 65dB max
RH Humidity, Non-Condensing| 95%
Online Thermal Dissipation at Full Load, (Btu/Hr)| 9829| 7167
Storage Temperature (ENG)| -15 — 60C
Operating Temperature (ENG)| 0°C — 40 °C
Operating Elevation| <1000 meters for nominal power (over 100 m,
the power de-rating is 1% per 100 m)
Mechanical
| Transformer Winding| Aluminum
Cabinet Material| Cold Rolled Galvanized Steel (SGCC)
Cabinet Color| RAL 9011
Fan (Type / Quantity)| 4x Ball Bearing,
120 mm (576 total CFM)| 8x Ball Bearing,
120 mm (1152 total CFM)
Reliability
| Vibration| ISTA-3B
Shock| ISTA-3B
Drop| ISTA-3B (Tip Test)
Agency Approvals
| Approving Agency| cTUVs
Agency Standard Tested| UL 1778 5th Edition
Canadian Approvals| CSA 22.2-107.3-14
CE Approvals| N/A
EMI Approvals| N/A
RoHS/REACH| Yes
Storage
Before storing the isolation transformer, ensure all connections have been
disconnected and all breakers are turned OFF.
Replace all input or output access covers to avoid damaging any contacts.
The transformer must be stored in a clean, secure environment with
temperatures between 5°F to 140°F (-15°C to 60°C) and relative humidity less
than 90% (non-condensing).
Store the transformer in its original shipping container, if possible.
WARNING: The transformer(s) is/are very heavy. Before storing the
transformer, make sure to take into account the floor loading (kg/m²)
requirements listed in section 5. Specifications under “Physical Info” to
store safely.
Warranty and Regulatory Compliance
Limited Warranty
Seller warrants this product, if used in accordance with all applicable
instructions, to be free from original defects in material and workmanship for
a period of 2 years from the date of initial purchase. If the product should
prove defective in material or workmanship within that period, Seller will
repair or replace the product, in its sole discretion. Service under this
Warranty includes parts only. International customers should contact Tripp
Lite support at intlservice@tripplite.com.
Continental USA customers should contact Tripp Lite Customer Service at
773-869-1234 or visit
tripplite.com/support/help THIS WARRANTY
DOES NOT APPLY TO NORMAL WEAR OR TO DAMAGE RESULTING FROM ACCIDENT, MISUSE,
ABUSE OR NEGLECT. SELLER MAKES NO EXPRESS WARRANTIES OTHER THAN THE WARRANTY
EXPRESSLY SET FORTH HEREIN. EXCEPT TO THE EXTENT PROHIBITED BY APPLICABLE LAW,
ALL IMPLIED WARRANTIES, INCLUDING ALL WARRANTIES OF MERCHANTABILITY OR
FITNESS, ARE LIMITED IN DURATION TO THE WARRANTY PERIOD SET FORTH ABOVE; AND
THIS WARRANTY EXPRESSLY EXCLUDES ALL INCIDENTAL AND CONSEQUENTIAL DAMAGES.
(Some states do not allow limitations on how long an implied warranty lasts,
and some states do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitations or exclusions may not apply to
you. This Warranty gives you specific legal rights, and you may have other
rights, which vary from jurisdiction to jurisdiction.)
Tripp Lite; 1111 W. 35th Street; Chicago IL 60609; USA
WARNING: The individual user should take care to determine prior to use
whether this device is suitable, adequate or safe for the use intended. Since
individual applications are subject to great variation, the manufacturer makes
no representation or warranty as to the suitability or fitness of these
devices for any specific application.
Product Registration
Visit tripplite.com/warranty today to
register your new Tripp Lite product. You will be automatically entered into a
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WEEE Compliance Information for Tripp Lite Customers and Recyclers
(European Union)
Under the Waste Electrical and Electronic Equipment (WEEE) Directive and
implementing regulations, when customers buy new electrical and electronic
equipment from Tripp Lite they are entitled to:
- Send old equipment for recycling on a one-for-one, like-for-like basis (this varies depending on the country)
- Send the new equipment back for recycling when this ultimately becomes waste
Use of this equipment in life support applications where the failure of this
equipment can reasonably be expected to cause the failure of the life support
equipment or to significantly affect its safety or effectiveness is not
recommended.
Tripp Lite has a policy of continuous improvement. Specifications are subject
to change without notice. Photos and illustrations may differ slightly from
actual products.
1111 W. 35th Street, Chicago, IL 60609 USA • tripplite.com/support
References
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