SolaHD E79H112S - SolaHD, Ventilated Distribution Transformer, DOE 10 Cfr P431 - DOE 2016 Compliant, Ul Listed E25872, 112.5 KVA, Primary Voltage 480 V, Secondary Voltage 380 V, 60 HZ, 3 Phase, Number Of Taps 7, Temperature Rating 150 Degrees C, Connection Delta-Wye, Winding Aluminium, Enclosure Nema Type 1
SolaHD

E79H112S

UPC: 783472149018


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Specification Sheet

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Overview

The SolaHD E79H112S is a DOE 10 CFR P431 - DOE 2016 compliant ventilated distribution transformer designed for industrial and commercial power distribution applications. This 3-phase transformer delivers a rated capacity of 112.5 KVA, operating at a frequency of 60 Hz. The primary voltage is configured for 480 V, while the secondary voltage is set to 380 V, making it suitable for step-down applications in industrial facilities. The transformer features a Delta-Wye winding connection, which provides a phase shift of 30 degrees and is commonly used to balance three-phase systems while reducing harmonic distortion. Constructed with high-quality aluminum windings, the E79H112S offers superior thermal conductivity and durability, ensuring long-term reliability and reduced maintenance costs. The unit includes seven internal taps, allowing for voltage adjustment within ±10% of nominal voltage to accommodate variations in input power and maintain stable output. The temperature rating of 150°C ensures reliable operation even under high thermal loads, while the NEMA Type 1 enclosure provides protection against dust, dirt, and non-corrosive atmospheres, making it ideal for indoor installations in factories, power substations, and large commercial facilities. Certified to UL Standard E25872, the E79H112S meets stringent safety and performance requirements, including compliance with DOE 2016 energy efficiency regulations. Its robust design and compliance with industry standards make it a dependable choice for critical power distribution needs in demanding industrial environments.
  • 112.5 KVA capacity for industrial power distribution
  • 480 V primary, 380 V secondary voltage
  • 3-Phase, 60 Hz operation
  • Delta-Wye connection with 7 taps for voltage regulation
  • NEMA Type 1 enclosure for indoor protection

Specifications

Application
Any situation where the available voltage must be changed to accommodate the voltage required by the specific electrical circuit or connected equipment.
Brand Name
SolaHD
Connection Type
Delta-Wye
Cooling
AA
Efficiency
98.74 Percent
Enclosure
NEMA TYPE 1
Frequency
60 Hz
Frequency Rating
60 HZ
Frequency Rating, Maximum
60 Hz
Frequency Rating, Minimum
60 Hz
Height
34 IN
Insulation Class
220 DEG C
KVA Rating
112.5 KVA;112.5 kVA
Length
28 IN
Material
aluminium
Mounting
FLOOR
NEMA Rating
Type 1
Number Of Phases
3
Number Of Taps
7
Poles
3 Phase
Poles
3
Primary Voltage
480D V
Primary Voltage
0.48 kV
Secondary Voltage
0.38 kV
Secondary Voltage
380Y V
Series
E79H
Size
112.5 kVA
Special Features
DOE 10 CFR p431 - DOE 2016 Compliant
Standard
UL Listed E25872
Taps
7
Temperature Rating
150 Degrees C
Temperature Rating, Maximum
302 F
Temperature Rating, Maximum
150 C
Temperature Rating, Minimum
302 F
Temperature Rating, Minimum
150 C
Type
Ventilated Distribution Transformer
Type of Transformer
DOE 10 CFR p431 - DOE 2016 Compliant
Voltage Rating
480 V / 380 V
Voltage Rating
480 VAC / 380 VAC
Voltage Rating
480 V (Primary), 380 V (Secondary)
Width
22 IN
Winding
ALUMINIUM
Package Dimensions (L x W x H)
31 IN x 29.25 IN x 53 IN
Package Dimensions (L x W x H)
78.74 cm x 74.295 cm x 134.62 cm
Package Weight (Imperial)
797.000 L
Package Weight (Metric)
361.519 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.