Authorized SolaHD Distributor
SolaHD ES12H25S - General Purpose Ventilated Distribution Transformer, 25kVA, 120/208/240/277 Volt Primary, 120/240 Secondary, 60 HZ, UL Listed UL 1561, Primary Amps @277V 90.3, Secondary Amps 208/104

SolaHD ES12H25S General Purpose Ventilated Distribution Transformer, 25kVA, 120/208/240/277 Volt…

UPC: 783472004409


Documents & Media
Specification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The SolaHD ES12H25S is a general-purpose ventilated distribution transformer with a 25kVA rating, designed for industrial and commercial power distribution. This configuration ensures compatibility with a wide variety of downstream equipment, including control panels, motors, and lighting systems commonly found in North American facilities operating at 60Hz. Key specifications include a primary current rating of 90.3 Amps at 277V and secondary current ratings of 208 Amps at 120V or 104 Amps at 240V. These robust current ratings enable reliable power delivery for moderate to heavy industrial loads. The transformer is UL 1561 listed, meeting stringent safety and quality standards. The ventilated design promotes efficient heat dissipation through natural air circulation, which helps to reduce internal component temperatures and extend the operational life of the transformer, especially in environments with elevated ambient temperatures. The rugged steel enclosure provides protection for internal components and allows for straightforward installation in standard rack enclosures or dedicated transformer rooms, minimizing its physical footprint. Ideal applications for the SolaHD ES12H25S include factory automation, data centers, industrial control systems, and utility distribution. Its broad voltage compatibility and high current handling capabilities make it a flexible and dependable choice for facilities requiring efficient and reliable power distribution solutions. Whether for system upgrades or new installations, this transformer offers a practical solution for industrial power management.
  • 25kVA general-purpose ventilated distribution transformer
  • Primary voltage: 120/208/240/277V
  • Secondary voltage: 120/240V
  • 60 Hz frequency
  • UL 1561 listed
  • Ventilated design for efficient heat dissipation and extended component life
  • Compact, rugged housing for space-efficient installations in rack enclosures
  • Operates at 60Hz frequency for compatibility with standard power grids

Specifications

Application
Industrial
Brand Name
SolaHD
Current Rating
90.3A (Primary @277V), 208A (Secondary @120V), 104A (Secondary @240V)
Enclosure
NEMA 3R
Frequency
60 Hz
Frequency Rating
60 HZ
Frequency Rating, Maximum
60 Hz
Frequency Rating, Minimum
60 Hz
Height
28 in
Height
711.2 mm
Insulation Class
220 DEG C
KVA Rating
15 KVA
Length
16 in
Length
406.4 mm
Material
Steel
Mounting
Wall
Mounting Type
Rack or Dedicated Transformer Room
Number Of Phases
1
Number of Taps
2
Primary Voltage
120/208/240/277 VAC
Secondary Voltage
120/240 VAC
Series
ES12H
Special Features
Wall Mounting Bracket, Primary Amperage 277/54.2A, Secondary Amps 125/62.5, 220 DEG Insulation System
Standard
UL 1561
Temperature Rating
115 DEG C Rise
Temperature Rating, Maximum
239 F
Temperature Rating, Maximum
115 C
Temperature Rating, Minimum
239 F
Temperature Rating, Minimum
115 C
Type
Ventilated Distribution Transformer
Type of Transformer
Ventilated Distribution Transformer
Voltage Rating
120/208/240/277V (Primary), 120/240V (Secondary)
Width
16 IN
Width
406.4 mm
Winding
Copper
Package Dimensions (L x W x H)
16.2 IN x 16.1 IN x 27.9 IN
Package Dimensions (L x W x H)
41.148 cm x 40.894 cm x 70.866 cm
Package Weight (Imperial)
285.000 L
Package Weight (Metric)
129.276 kg
A - 15.0 kV bushing

015J0400AN

A - 15.0 kV bushing
O Plus C - 34.5 kV bushing

034Z3000AW

O Plus C - 34.5 kV bushing

Frequently Asked Questions

What types of SolaHD transformers are available?

SolaHD offers energy-efficient dry-type general purpose transformers, isolation type, in single and three phase configurations, ranging from 15 kVA to 500 kVA. Both indoor and outdoor models are available.

Are these SolaHD transformers energy efficient?

Yes, these transformers are energy efficient and compliant with DOE 2016 and NRCan 2019 standards, as applicable.

Can these transformers be used outdoors?

Yes, they are UL Listed/NEMA Type 3R for outdoor use when equipped with optional weather shields, which must be ordered separately.

What is the insulation system temperature rating?

The transformers feature a UL Class 220°C insulation system, designed for a 150°C temperature rise under full load.

What is the warranty period for these transformers?

These SolaHD transformers come with a 10-year limited warranty.

What accessories are available for these transformers?

Available accessories include electrostatic shields, wall mounting brackets, weather shields, stainless steel enclosures, and open core and coil designs. Copper wound designs are also optional.

What are the benefits of Enhanced Enclosures?

Enhanced Enclosures feature a lower center of gravity for easier forklift placement, replaceable panels, enhanced fasteners, and adequate wiring compartments.

How are wall mounting brackets rated?

Wall mounting brackets are available for transformers up to 75 kVA. WMB1151 has a 500 lb capacity, and WMB6375 has a 780 lb capacity.

Are wiring diagrams provided with the product?

Yes, a wiring diagram is located on the inside front cover of the panel enclosure.

What kVA sizes are available for Enhanced Enclosure models?

Enhanced Enclosure models (those beginning with EE) are available in 11 kVA to 112.5 kVA sizes.

Frequently Asked Questions about SolaHD

What certifications and standards do SolaHD products comply with?

SolaHD power supplies are UL 508 Listed for Industrial Control Equipment and comply with multiple international standards, including UL 60950, CUL/CSA-C22.2 No. 234-M90, and IECEx certifications. Our products meet EMC and Low Voltage Directives, with extensive hazardous location certifications including Class I Zone 2, ATEX, and IECEx, ensuring reliable performance in industrial environments.

What industries and applications are SolaHD products used for?

SolaHD products are used across a wide range of critical industrial applications, including factory automation, process control, machine control, material handling, building automation, and harsh environment installations. Key industries include manufacturing, process industries, semiconductor fabrication, packaging, conveying equipment, instrumentation, and environments requiring UL508 compliance such as water treatment facilities. The products are specifically designed for challenging industrial settings, with certifications for hazardous locations and extreme temperature ranges.

What technical support does SolaHD offer?

SolaHD offers comprehensive technical support through experienced sales representatives available worldwide. Our support includes expert consultation for selecting the right power quality solutions, with award-winning online tools to help customers make precise product selections. Technical support covers the entire range of our industrial power solutions, from service entrance protection to point-of-use equipment, ensuring customers can optimize their facility's power infrastructure.

What are the main product lines offered by SolaHD?

SolaHD offers a comprehensive range of industrial power quality solutions across five primary product lines: Power Supplies, Surge Protection Devices (SPDs), Transformers, Power Conditioning, and Uninterruptible Power Supplies (UPS). Key product series include SDN Power Supplies, STV/STFV Surge Protective Devices, Industrial Control Transformers, MCR Constant Voltage Conditioners, and SDU UPS systems designed for industrial automation, process control, and critical manufacturing environments.

What are the key features of SolaHD products?

SolaHD products offer comprehensive industrial power quality solutions that convert, clean, and maintain electric current throughout manufacturing facilities. Key features include noise and surge protection, voltage regulation, drive protection, and uninterruptible power supplies (UPS). Their product lines cover everything from service entrance to point-of-use, with compact DIN rail mountable options that provide flexible, space-saving power solutions for sensitive industrial equipment like PLCs, networks, and control systems.

What environmental ratings do SolaHD products have?

SolaHD products feature robust environmental ratings including NEMA Type 1, 2, 3, 4, 4X, 12, and 13 classifications, as well as IP66 protection. These ratings ensure comprehensive protection against dust, water, and corrosion in both indoor and outdoor environments, with operating temperatures ranging from -40°C to 130°C.

What accessories are available for SolaHD products?

SolaHD offers a comprehensive range of accessories across multiple product lines, including surge protective devices (SPD), tracking filters, power supplies, UPS systems, and DIN rail mountable components. Key accessories include the STV100K Surge Protective Device, STFV Plus Series Tracking Filters, SDN and SCP Series Power Supplies, SDU Series UPS, and various DIN rail filters and converters that can be integrated into industrial control panels and power systems.

How are SolaHD products typically installed?

SolaHD products are typically installed on DIN rail mounting systems in industrial control panels, with multiple installation options including panel/wall mounting brackets. Most products feature easy-to-wire screw terminations, making them suitable for critical industrial applications like factory automation, PLCs, robotics, and computer-based control systems. The products are designed for flexible installation across various industrial environments, with wide operating temperature ranges from -20°C to +50°C and compact, rugged industrial designs.