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SolaHD ES5HF37S - Low Temperatue Rise Ventilated Distribution Transformer, 37.5kVA, 240 x 480 Volt Primary, 120/240 Secondary, 60 HZ, 115 degree C rise, UL Listed E25872, UL 1561, Primary Amps 156/78, Secondary Amps 313/156

SolaHD ES5HF37S Low Temperatue Rise Ventilated Distribution Transformer, 37.5kVA, 240 x 480 Volt…

UPC: 783472003099


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 ES5HF37S is a 37.5kVA ventilated distribution transformer designed for industrial and commercial power distribution. This unit features a low temperature rise of 115°C, reducing thermal stress and extending operational life in continuous or fluctuating load conditions. The primary voltage is rated at 240 x 480V, providing flexible connection options for various power systems, while the secondary output delivers 120/240V, compatible with standard low-voltage equipment. Primary current ratings are 156/78 A, accommodating different primary voltage configurations, and secondary current ratings are 313/156 A, ensuring sufficient capacity for downstream loads. Operating at 60 Hz, the transformer maintains synchronization with North American power grids. Its ventilated enclosure promotes efficient heat dissipation through natural airflow, critical for stable performance under demanding conditions. The ES5HF37S is suitable for applications such as manufacturing lines, data centers, and commercial facilities where consistent and dependable power is essential. The transformer is designed for drive isolation applications, including SCR variable speed motor drives, where magnetic isolation minimizes load disturbances caused by the drive. Taps on all units allow adjustments to incoming source voltage, and a full capacity secondary neutral meets National Electric Code requirements. Shielding attenuates line-to-ground noise, enhancing power quality. The transformer is part of SolaHD's ventilated distribution transformer line, available in sizes from 7.5 to 440 kVA for three-phase applications. For drive isolation, standard designs feature a delta primary and wye secondary to match common power sources in three-phase rectifier circuits. The ES5HF37S is engineered to handle mechanical stresses, voltage demands, and harmonics associated with SCR applications, ensuring reliable operation in critical power infrastructure.
  • 37.5kVA rated power for industrial/commercial applications
  • Primary voltage: 240 x 480V; Secondary voltage: 120/240V
  • Low temperature rise of 115°C for extended operational life
  • Primary current: 156/78 A; Secondary current: 313/156 A
  • Ventilated enclosure for efficient heat dissipation
  • UL Listed E25872 and compliant with UL 1561 standards
  • Designed for SCR variable speed motor drive isolation
  • Taps for incoming source voltage adjustments
  • Full capacity secondary neutral per National Electric Code
  • Shielding attenuates line-to-ground noise

Specifications

Connection Type
Flexible connection options (240/480V primary, 120/240V secondary)
Current Rating
Primary: 156/78 A, Secondary: 313/156 A
Current Rating
156/78 A (Primary), 313/156 A (Secondary)
Frequency
60 Hz
Series
ES5HF
Size
37.5 kVA
Voltage Rating
240/480V Primary, 120/240V Secondary
Voltage Rating
240/480 VAC (Primary), 120/240 VAC (Secondary)
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 are the kVA and temperature rise for ES5HF37S?

The ES5HF37S is a 37.5 kVA transformer with a 115°C temperature rise.

What are the dimensions and weight of the ES5HF37S?

The ES5HF37S measures 31 in (height) x 18 in (width) x 18 in (depth) and weighs approximately 340 lbs.

What are the primary and secondary voltages for ES5HF37S?

The ES5HF37S has a 240 x 480 Volt primary and a 120/240 Volt secondary.

What are the primary and secondary amperage ratings for ES5HF37S?

The ES5HF37S has primary amperage ratings of 156/78 Amps and secondary amperage ratings of 313/156 Amps.

Is a weather shield available for the ES5HF37S?

Yes, a Type 3R weather shield (WS-17) is available for the ES5HF37S and must be ordered separately.

Is the ES5HF37S transformer UL listed?

Yes, the ES5HF37S is UL Listed under standard UL 1561, with listing number E25872.

What taps are available for the ES5HF37S transformer?

The ES5HF37S, part of the ES5 Series, has 2, 2½% FCAN and 4, 2½% FCBN taps.

What insulation system does the ES5HF37S transformer use?

The ES5HF37S transformer features a Class 220°C insulation system.

Does the ES5HF37S have overload capacity?

Yes, the 115°C rise unit has a 35°C thermal reserve, allowing 15-30% short term overload capacity without compromising normal life expectancy.

Is the ES5HF37S transformer energy efficient?

Yes, the ES5HF37S is Energy Efficient Compliant to DOE 2016.

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.