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SolaHD DT661H27S - Drive Isolation Transformer, 27 kVA, Drive Horse Power 20, 460 Delta Primary, 230Y/133 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
SolaHD

DT661H27S

UPC: 783472400515

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Specification Sheet

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Overview

The SolaHD DT661H27S Drive Isolation Transformer is a 27 kVA, 60 Hz unit designed for industrial motor drive applications requiring high electrical isolation and reliable power distribution. This transformer features a 460V Delta primary winding and a 230Y/133V secondary winding, making it compatible with 20 HP drives in standard 460V industrial environments. Engineered for variable frequency drives (VFDs), motor control systems, and automation equipment, the DT661H27S provides clean, isolated power to protect sensitive electronics from voltage transients, harmonics, and electrical noise common in industrial settings. Key specifications include a 27 kVA power rating, 60 Hz frequency, and compliance with multiple safety standards: cULus Listed (E7014), UL 506, CSA C22.2 No.66, UL Listed E25872, and UL 1561. The transformer’s Delta-Wye configuration ensures proper phase shift and neutral grounding, reducing common-mode noise and improving system stability. Its compact design and robust construction make it suitable for installation in control panels, motor control centers (MCCs), and industrial machinery where space is at a premium. Applications include conveyor systems, CNC machines, pumps, fans, and other industrial equipment where motor drives require stable, isolated power. The DT661H27S is ideal for environments with strict power quality requirements, such as food processing, automotive manufacturing, and wastewater treatment facilities. By isolating the drive from the power source, this transformer extends the life of connected equipment, reduces maintenance costs, and ensures compliance with electrical safety regulations. SolaHD’s DT661H27S is built to meet the demands of 24/7 industrial operations, with low losses and high efficiency to minimize heat generation and energy consumption. Its UL and CSA certifications provide assurance of safety and reliability in North American markets, while the compact footprint simplifies installation and maintenance. Whether upgrading existing systems or designing new installations, this transformer delivers the isolation and performance required for modern industrial automation.
  • 27 kVA power rating with 20 HP drive compatibility
  • 460V Delta primary / 230Y/133V secondary configuration
  • 60 Hz operation with cULus, UL 506, CSA C22.2 No.66, UL 1561 certifications
  • Compact design for space-constrained industrial installations
  • Reduces electrical noise and voltage transients for motor drive protection

Specifications

Application
Drive Isolation
Frequency
60 Hz
KVA Rating
27 kVA
Mounting
Floor
Number Of Phases
3
Primary Voltage 1, Maximum
460D V
Primary Voltage 1, Minimum
460D V
Primary Voltage 2, Maximum
460D V
Primary Voltage 2, Minimum
460D V
Primary Voltage 3, Maximum
460D V
Primary Voltage 3, Minimum
460D V
Secondary Voltage 1, Maximum
230Y/133 V
Secondary Voltage 1, Minimum
230Y/133 V
Secondary Voltage 2, Maximum
230Y/133 V
Secondary Voltage 2, Minimum
230Y/133 V
Secondary Voltage 3, Maximum
230Y/133 V
Secondary Voltage 3, Minimum
230Y/133 V
Series
DT661H
Temperature Rating, Maximum
302 F
Temperature Rating, Maximum
150 C
Temperature Rating, Minimum
302 F
Temperature Rating, Minimum
150 C
Type
SCR
Voltage Rating
460 Delta Primary / 230Y/133 Secondary
Package Dimensions (L x W x H)
21 IN x 29 IN x 34 IN
Package Dimensions (L x W x H)
53.34 cm x 73.66 cm x 86.36 cm
Package Weight (Imperial)
269.000 L
Package Weight (Metric)
122.018 kg
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DT661H40S

Drive Isolation Transformer, 40 kVA, Drive Horse Power 30, 460 Delta Primary, 230Y/133 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
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Drive Isolation Transformer, 51 kVA, Drive Horse Power 40, 575 Delta Primary, 230Y/133 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
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DT661H118S

Drive Isolation Transformer, 118 kVA, Drive Horse Power 100, 460 Delta Primary, 230Y/133 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
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DT661H145S

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Frequently Asked Questions

What is the kVA rating of the DT661H27S?

The DT661H27S transformer has a kVA rating of 27.

What is the primary voltage for the DT661H27S model?

The DT661H27S model has a 460 Delta primary voltage.

What is the secondary voltage for the DT661H27S model?

The DT661H27S model provides a 230Y/133 secondary voltage.

What are the dimensions of the DT661H27S transformer?

The DT661H27S measures 28.00 in height, 23.00 in width, and 19 in depth.

What is the shipping weight of the DT661H27S?

The approximate shipping weight for the DT661H27S is 277.0 lbs (126.00 kg).

What enclosure design style does the DT661H27S use?

The DT661H27S uses Enclosure Design Style 2, which is a ventilated enclosure.

What is the purpose of SolaHD Drive Isolation Transformers?

They magnetically isolate the incoming line from the motor drive and provide a voltage change to match the SCR Drive's required voltage.

What applications are these transformers designed for?

These transformers are specifically designed for SCR (Silicon Control Rectifier) Variable Speed Drive applications.

What kVA range is available for these transformers?

SolaHD Drive Isolation Transformers are available from 7.5 thru 440 kVA, 3 Phase, 60 Hz.

Do these transformers have voltage adjustment capabilities?

Yes, all units include taps for adjustments to the incoming source voltage.

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.