2550 kVA Three-Phase Pad Mounted Transformer
Power 2MW+ mining containers & data halls with Apexto 2550 kVA 3 phase padmount transformers in stock. Custom voltages, globally certified & ships in 1-3 days!
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Apexto is now offering U.S.-based inventory and DDP (Delivered Duty Paid) shipping for customers in the U.S. For more details, pls. contact our sales team.
Order 2 or more machines to save on shipping costs! Contact our sales team now to secure the best rates.
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Heavy-Duty Power 2550 kVA 3-Phase Pad-Mounted Transformer
Key specifications at a glance for quick reference and confident planning.
Rated Capacity
2550 kVA
Feed Type
Loop / Radial
Cooling Medium
ONAN
Frequency
60 Hz
Installation
Outdoor Pad-Mounted
WAREHOUSE LOCATIONS
USA • Canada • UAE • China • Global Dispatch
FAST DISPATCH
Ready Stock • Ships in 1-3 Days • DDP Door-to-Door
Product Profile
The 2550 kVA model is positioned differently from the standard 2500 kVA unit. Its focus is high-density computing and data center power architecture, where precise transformer capacity and 415V or 480V secondary distribution may be part of the electrical design.
The 2.55 MVA rating can be configured around project-specific medium-voltage input, downstream distribution voltage, impedance, monitoring, and protection requirements. It is especially relevant where transformer selection is tied closely to the power block design of the data hall or compute module.
Rather than serving as a general-purpose 2.55 MVA alternative, the 2550 kVA unit is best treated as an engineered solution for specialized high-density electrical infrastructure.
Core Advantages
01. Dead-Front Dual Compartment
Features a dual-compartment design separating high and low voltage with a rigid steel barrier. Enclosed dead-front bushings ensure maximum touch safety and tamper protection.
02. Multi-Tier Fuse & Switch Bay
Integrates accessible Bay-O-Net fuses with a four-position load-break switch (Source A/B) and a tap changer, ensuring instant fault isolation and safe power transfer.
03. Comprehensive Gauge Suite
Equipped with precision dial thermometer, pressure/vacuum, and oil level gauges alongside an automatic pressure relief valve (PRV) for continuous operational safety.
04. Auxiliary Control Cabinet
Houses neatly organized DIN-rail circuit breakers, terminal blocks, a power supply, and convenience outlet, simplifying secondary control wiring and field testing.
05. High-Conductivity LV Busbars
Fitted with heavy-duty tin-plated NEMA spade terminals (X0–X3) designed for high current capacity, minimizing contact resistance and easing multi-cable connections.
06. C5-M Enclosure & Cooling Fans
Protected by a C5-M marine-grade steel enclosure with large cooling radiator banks and auxiliary forced-air fans, engineered for non-stop duty in harsh environments.
Full Specifications
External dimensions
L:2500mm、W:2000mm、H:2300mm
Internal dimensions
L:2450mm、W:1950mm、H:2350mm
Weight
6000KG
| Rated Capacity | 2550 kVA / 2.55 MVA | Phase | Three Phase |
| Frequency | 60 Hz | Primary Voltage | Customized (Typical 12.47kV / 13.8kV / 24.94kV / 34.5kV) |
| Secondary Voltage | Customized (Typical 480Y/277V) | Winding Configuration | Delta - Wye / Grounded Wye (Project Specific) |
| Winding Material | Copper / Aluminum Available | Cooling Type | ONAN |
| Insulation Fluid | Mineral Oil | Temperature Rise | 65°C |
| Impedance | Typical 5.75% | BIL Rating | According to Voltage Class |
| Vector Group | Dyn1 / Customized | Tap Changer | Off-Circuit Tap Changer |
| Standards | ANSI / IEEE C57 / DOE | Testing | Factory Routine Testing |
Engineering Documents
Padmount Spec Sheet
Padmount Dimensional Drawings
Padmount Installation Manual
Padmount Test & Warranty Guide
Certifications & Grid Compliance
Fully compliant with UL, CSA, IEEE/ANSI, DOE, and IEC standards. Tested and certified by international authorities to ensure maximum safety, efficiency, and instant approval by local power utilities.
UL/cUL
CSA
CESI
IEEE
IEC
EN00676
AS-NZS
GOST
Infrastructure Capabilities
We supply a full lineup of pad-mount transformers built for heavy-duty power. From 24/7 crypto mining farms to mission-critical data centers, we deliver reliable equipment designed to run non-stop.
We also offer custom engineering tailored to your exact site. From specific high and low voltages to specialized enclosure specs, we customize and deliver units in as fast as 4–6 weeks to get your project powered up on schedule.
Design
Raw Material Procurement
Assembly
Testing
Packaging
Delivery
Request a Project Quote
Tell us about your project or custom requirements. Our power systems engineers will review your specs and provide a tailored proposal.
Submit Inquiry ➔Global Project References
View All >>
Reykjavik, Iceland
2550 kVA Pad-Mounted Transformer for Geothermal Data Center
High-efficiency 2550 kVA (2.55 MVA) padmount unit delivered to power a 100% green geothermal compute facility, operating reliably in cold sub-arctic climates.
11 kV Class
415Y/240V
ONAN 2550
Frankfurt, Germany
2550 kVA (2.55 MVA) Transformer for European AI Facility
Three-phase 2550 kVA pad-mounted transformer dispatched via express freight to support an enterprise AI server expansion and high-density liquid cooling loops.
2550 kVA
20 kV Class
400V / 415V
West Texas, USA
4 x 2550 kVA Transformers for Mining Park
Convoys of 2550 kVA padmount transformers dispatched simultaneously to power a utility-scale 40-foot hydro container park under extreme desert heat.
4 x 2550 kVA
34.5 kV Class
415Y/240V
Calgary, Alberta, Canada
3 x 2550 kVA Padmount Units for High-Density Compute
Heavy-duty 2550 kVA step-down transformers installed alongside a massive louvered cooling infrastructure, fully compliant with Canadian 600V/415V grids.
2550 kVA
24.94 kV
600Y / 415V
Capabilities & Support
24-Month Quality Warranty
Enjoy peace of mind with our 24-month full warranty. If any operational issue arises with your transformer, our dedicated engineering team will resolve it rapidly and reliably.
Local Field Service Team
Whether in North America or global regions, our certified local engineering teams provide professional on-site transformer installation, energization testing, and maintenance.
24/7 Remote Video Support
Connect directly with our senior power engineers via live video for real-time installation guidance, system diagnostics, and instant troubleshooting support, anytime and anywhere.
Spare Parts & Support
We maintain an extensive inventory of genuine spare parts for fast dispatch, paired with lifetime technical guidance to maximize your equipment uptime.
Need a Customized Power & Transformer Solution?
Talk to our engineers to get an optimized configuration and fast quote.
Contact Sales ➔FAQs
Why choose a 2550 kVA transformer for a mining or data center project?
A 2550 kVA transformer is designed for larger power blocks where a standard 1000–2000 kVA transformer may limit future expansion. It provides higher power density while reducing the number of transformer units required for large deployments.
Is a 2550 kVA transformer better than using multiple smaller transformers?
It depends on the site design. A single 2550 kVA transformer can simplify medium-voltage distribution and reduce the number of primary connections.
Multiple smaller transformers may provide more flexibility for phased deployment or redundancy.
What size mining deployment can a 2550 kVA transformer support?
A 2550 kVA transformer is suitable for large mining power blocks, including multiple container deployments or high-density hydro cooling systems.
The actual number of miners depends on miner model, operating power, cooling method, and auxiliary equipment load.
Why would a project choose 2550 kVA instead of 2000 kVA?
A 2550 kVA transformer provides additional capacity for projects that are approaching the practical limit of a 2000 kVA system or expect future load growth.
It allows more room for additional mining containers, cooling equipment, or electrical expansion without replacing the main transformer.
Can a 2550 kVA transformer support future site expansion?
Yes. Large mining and data center projects often reserve transformer capacity for future growth.
Apexto evaluates current load, planned expansion, cooling infrastructure, and site layout when selecting transformer capacity.
Can Apexto configure a 2550 kVA transformer for my project voltage and distribution system?
Yes. The transformer can be configured according to project requirements, including utility voltage, secondary voltage, connection type, protection requirements, and installation conditions.
Is a 2550 kVA transformer suitable for containerized mining deployments?
Yes. A 2550 kVA transformer can serve as a centralized power source for multiple mining containers or hydro cooling systems, helping create a scalable power infrastructure for larger sites.
Recommended Capacities
Discover our full lineup of three-phase pad-mounted transformers built for projects of any scale.
View All >>
1250KVA
1250 kVA Pad Mount Three-Phase Transformer
| Primary Voltage | 2.4 kV – 34.5 kV Class |
| Secondary Voltage | 120 V – 600 V Range |
| Availability | USA & China |
1500KVA
1500 kVA Pad Mount Three-Phase Transformer
| Primary Voltage | 2.4 kV – 34.5 kV Class |
| Secondary Voltage | 120 V – 600 V Range |
| Availability | USA & China |
2000KVA
2000 kVA Pad Mount Three-Phase Transformer
| Primary Voltage | 2.4 kV – 34.5 kV Class |
| Secondary Voltage | 120 V – 600 V Range |
| Availability | USA & China |
3000KVA
3000 kVA Pad Mount Three-Phase Transformer
| Primary Voltage | 2.4 kV – 34.5 kV Class |
| Secondary Voltage | 120 V – 600 V Range |
| Availability | USA & China |
Heavy-Duty Power 2550 kVA 3-Phase Pad-Mounted Transformer
Key specifications at a glance for quick reference and confident planning.
2550 kVA
Loop / Radial
ONAN
60 Hz
Outdoor Pad-Mounted
WAREHOUSE LOCATIONS
USA • Canada • UAE • China • Global Dispatch
FAST DISPATCH
Ready Stock • Ships in 1-3 Days • DDP Door-to-Door
Product Profile
The 2550 kVA model is positioned differently from the standard 2500 kVA unit. Its focus is high-density computing and data center power architecture, where precise transformer capacity and 415V or 480V secondary distribution may be part of the electrical design.
The 2.55 MVA rating can be configured around project-specific medium-voltage input, downstream distribution voltage, impedance, monitoring, and protection requirements. It is especially relevant where transformer selection is tied closely to the power block design of the data hall or compute module.
Rather than serving as a general-purpose 2.55 MVA alternative, the 2550 kVA unit is best treated as an engineered solution for specialized high-density electrical infrastructure.
Core Advantages
01. Dead-Front Dual Compartment
Features a dual-compartment design separating high and low voltage with a rigid steel barrier. Enclosed dead-front bushings ensure maximum touch safety and tamper protection.
02. Multi-Tier Fuse & Switch Bay
Integrates accessible Bay-O-Net fuses with a four-position load-break switch (Source A/B) and a tap changer, ensuring instant fault isolation and safe power transfer.
03. Comprehensive Gauge Suite
Equipped with precision dial thermometer, pressure/vacuum, and oil level gauges alongside an automatic pressure relief valve (PRV) for continuous operational safety.
04. Auxiliary Control Cabinet
Houses neatly organized DIN-rail circuit breakers, terminal blocks, a power supply, and convenience outlet, simplifying secondary control wiring and field testing.
05. High-Conductivity LV Busbars
Fitted with heavy-duty tin-plated NEMA spade terminals (X0–X3) designed for high current capacity, minimizing contact resistance and easing multi-cable connections.
06. C5-M Enclosure & Cooling Fans
Protected by a C5-M marine-grade steel enclosure with large cooling radiator banks and auxiliary forced-air fans, engineered for non-stop duty in harsh environments.
Full Specifications
External dimensions
L:2500mm、W:2000mm、H:2300mm
Internal dimensions
L:2450mm、W:1950mm、H:2350mm
Weight
6000KG
| Rated Capacity | 2550 kVA / 2.55 MVA | Phase | Three Phase |
| Frequency | 60 Hz | Primary Voltage | Customized (Typical 12.47kV / 13.8kV / 24.94kV / 34.5kV) |
| Secondary Voltage | Customized (Typical 480Y/277V) | Winding Configuration | Delta - Wye / Grounded Wye (Project Specific) |
| Winding Material | Copper / Aluminum Available | Cooling Type | ONAN |
| Insulation Fluid | Mineral Oil | Temperature Rise | 65°C |
| Impedance | Typical 5.75% | BIL Rating | According to Voltage Class |
| Vector Group | Dyn1 / Customized | Tap Changer | Off-Circuit Tap Changer |
| Standards | ANSI / IEEE C57 / DOE | Testing | Factory Routine Testing |
Engineering Documents
Padmount Spec Sheet
Padmount Dimensional Drawings
Padmount Installation Manual
Padmount Test & Warranty Guide
Certifications & Grid Compliance
Fully compliant with UL, CSA, IEEE/ANSI, DOE, and IEC standards. Tested and certified by international authorities to ensure maximum safety, efficiency, and instant approval by local power utilities.
UL/cUL
CSA
CESI
IEEE
IEC
EN00676
AS-NZS
GOST
Infrastructure Capabilities
We supply a full lineup of pad-mount transformers built for heavy-duty power. From 24/7 crypto mining farms to mission-critical data centers, we deliver reliable equipment designed to run non-stop.
We also offer custom engineering tailored to your exact site. From specific high and low voltages to specialized enclosure specs, we customize and deliver units in as fast as 4–6 weeks to get your project powered up on schedule.
Request a Project Quote
Tell us about your project or custom requirements. Our power systems engineers will review your specs and provide a tailored proposal.
Submit Inquiry ➔Global Project References
View All >>
2550 kVA Pad-Mounted Transformer for Geothermal Data Center
High-efficiency 2550 kVA (2.55 MVA) padmount unit delivered to power a 100% green geothermal compute facility, operating reliably in cold sub-arctic climates.
11 kV Class
415Y/240V
ONAN 2550
2550 kVA (2.55 MVA) Transformer for European AI Facility
Three-phase 2550 kVA pad-mounted transformer dispatched via express freight to support an enterprise AI server expansion and high-density liquid cooling loops.
2550 kVA
20 kV Class
400V / 415V
4 x 2550 kVA Transformers for Mining Park
Convoys of 2550 kVA padmount transformers dispatched simultaneously to power a utility-scale 40-foot hydro container park under extreme desert heat.
4 x 2550 kVA
34.5 kV Class
415Y/240V
3 x 2550 kVA Padmount Units for High-Density Compute
Heavy-duty 2550 kVA step-down transformers installed alongside a massive louvered cooling infrastructure, fully compliant with Canadian 600V/415V grids.
2550 kVA
24.94 kV
600Y / 415V
Capabilities & Support
24-Month Quality Warranty
Enjoy peace of mind with our 24-month full warranty. If any operational issue arises with your transformer, our dedicated engineering team will resolve it rapidly and reliably.
Local Field Service Team
Whether in North America or global regions, our certified local engineering teams provide professional on-site transformer installation, energization testing, and maintenance.
24/7 Remote Video Support
Connect directly with our senior power engineers via live video for real-time installation guidance, system diagnostics, and instant troubleshooting support, anytime and anywhere.
Spare Parts & Support
We maintain an extensive inventory of genuine spare parts for fast dispatch, paired with lifetime technical guidance to maximize your equipment uptime.
Need a Customized Power & Transformer Solution?
Talk to our engineers to get an optimized configuration and fast quote.
Contact Sales ➔FAQs
A 2550 kVA transformer is designed for larger power blocks where a standard 1000–2000 kVA transformer may limit future expansion. It provides higher power density while reducing the number of transformer units required for large deployments.
It depends on the site design. A single 2550 kVA transformer can simplify medium-voltage distribution and reduce the number of primary connections.
Multiple smaller transformers may provide more flexibility for phased deployment or redundancy.
A 2550 kVA transformer is suitable for large mining power blocks, including multiple container deployments or high-density hydro cooling systems.
The actual number of miners depends on miner model, operating power, cooling method, and auxiliary equipment load.
A 2550 kVA transformer provides additional capacity for projects that are approaching the practical limit of a 2000 kVA system or expect future load growth.
It allows more room for additional mining containers, cooling equipment, or electrical expansion without replacing the main transformer.
Yes. Large mining and data center projects often reserve transformer capacity for future growth.
Apexto evaluates current load, planned expansion, cooling infrastructure, and site layout when selecting transformer capacity.
Yes. The transformer can be configured according to project requirements, including utility voltage, secondary voltage, connection type, protection requirements, and installation conditions.
Yes. A 2550 kVA transformer can serve as a centralized power source for multiple mining containers or hydro cooling systems, helping create a scalable power infrastructure for larger sites.
Recommended Capacities
Discover our full lineup of three-phase pad-mounted transformers built for projects of any scale.
View All >>
1250KVA
1250 kVA Pad Mount Three-Phase Transformer
| Primary Voltage | 2.4 kV – 34.5 kV Class |
| Secondary Voltage | 120 V – 600 V Range |
| Availability | USA & China |
1500KVA
1500 kVA Pad Mount Three-Phase Transformer
| Primary Voltage | 2.4 kV – 34.5 kV Class |
| Secondary Voltage | 120 V – 600 V Range |
| Availability | USA & China |
2000KVA
2000 kVA Pad Mount Three-Phase Transformer
| Primary Voltage | 2.4 kV – 34.5 kV Class |
| Secondary Voltage | 120 V – 600 V Range |
| Availability | USA & China |
3000KVA
3000 kVA Pad Mount Three-Phase Transformer
| Primary Voltage | 2.4 kV – 34.5 kV Class |
| Secondary Voltage | 120 V – 600 V Range |
| Availability | USA & China |
Customize Your Power Solution
Share your requirements below. Our consultants will contact you via WhatsApp or email within 24 hours with a custom-matched proposal.
In-stock miners will ship within 3 business days. For bulk orders, please allow an additional 1-2 days via DHL Express, UPS, FedEx, or TNT.
Pre-order miner delivery times depend on the factory schedule. Estimated delivery dates are provided on the order page, but delays may occur due to production issues.
Shipments are processed on a first-paid, first-shipped basis. Once full payment is received, we aim to ship as quickly as possible. Payments via wire transfer (T/T) may take 3-7 business days to verify, while cryptocurrency payments typically take a few hours to 1 business day.
International shipping usually takes 5-8 business days, with remote locations potentially requiring 8-10 days.
*All sales are final and non-refundable. Please understand, this is an industry standard.
All products listed on our website are priced in US Dollars.
We accept payments via bank wire transfer or online cryptocurrency payment (BTC, ETH, KAS, USDT, USDC).
If you prefer other payment methods, please contact our sales team.
Important: All cryptocurrency payments received on the website are automatically converted to USDT. If a product is out of stock, we will contact you for a refund. The refund will be based on the USD price at the time of your original order.
We offer DDP (Delivery Duty Paid) shipping to some countries, including the United States, Canada, Russia, Dubai, and certain EU countries.
If you require DDP shipping, please contact our customer service. For countries without DDP shipping or for standard shipping, we can help reduce taxes by providing a lower invoice value.
Customs duties are not included in the total price. You will need to pay them once the goods arrive in your country. Simply contact your local logistics company to settle the fees. If needed, we can provide a commercial invoice with a declared value of your choice.
Please notify us immediately if customs requests documents, as improper filing may lead to higher fees or delays. We can provide the necessary documentation.
For new, factory-sealed miners, the warranty is typically 12 months or 6 months, depending on the factory's policy, starting from the production date.
The company is not responsible for issues resulting from failure to follow the provided instructions, specifications, or alterations to the product.
For used mining machines, there is no warranty or after-sales service; however, before shipment, we will provide mining machine testing videos to ensure you understand its performance. Once you confirm acceptance, we will proceed with full communication and arrange shipment.
Transportation and any other costs related to product returns are the responsibility of the purchaser.
The repair period will depend on the nature of the issue.
- CMCaleb Montgomery CA
Faye was very kind and helpful
Faye was very kind and helpful, even with the time difference. She quickly cleared up my doubts about the L9 miner.
Date of experience : January 31, 2025 - JPJerry Pan US
Fast Shipping
Order arrived sooner than expected - great experience with Apexto Mining!
Date of experience : March 03, 2025 - RHRephael Hanks CA
Buying miners from Apexto for 5 years
Buying miners from Apexto for 5 years - trustworthy, professional, and delivers quality!
Date of experience : March 03, 2025 - BVBruno Vargas ES
Easier than I expected. Thanks Faye
I'm very satisfied with my purchase (Elphapex Home). Additionally, I must thank Faye for the excellent service she provided; she answered all my questions whenever I needed.
Date of experience : January 20, 2025 - LCLuis Clingerman US
Fast Shipping
The customer service on WhatsApp is excellent, and shipping is fast - from Hong Kong to North America without delay. I'm very happy with the experience!
Date of experience : January 31, 2025
