SolaHD DT661H20S - Drive Isolation Transformer, 20 kVA, Drive Horse Power 15, 460 Delta Primary, 230Y/133 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
SolaHD

DT661H20S

UPC: 783472400362


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Specification Sheet

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Overview

The SolaHD DT661H20S Drive Isolation Transformer (SKU: DT661H20S) is engineered for industrial motor control applications requiring reliable electrical isolation. This 20 kVA unit features a 460V Delta primary winding and a 230Y/133V Wye secondary winding, operating at a standard 60 Hz frequency. The transformer's primary function is to provide a distinct electrical barrier between the variable frequency drive (VFD) and the motor, mitigating harmonic distortion, reducing common-mode noise, and protecting sensitive drive electronics from voltage transients. Its robust construction and adherence to stringent safety standards ensure dependable performance in demanding industrial settings. Key specifications include: * **Rating:** 20 kVA * **Primary Voltage:** 460V Delta * **Secondary Voltage:** 230Y/133V Wye * **Frequency:** 60 Hz * **Drive Horse Power:** 15 HP This transformer is cULus Listed (E7014, UL 506, CSA C22.2No.66) and UL Listed (E25872, UL1561), confirming its compliance with critical safety and performance benchmarks. The DT661H20S is manufactured in the USA, ensuring quality and accessibility for North American industrial facilities. It is an essential component for applications where motor efficiency, drive longevity, and system stability are paramount.
  • 20 kVA power rating for high-demand applications
  • 460V Delta primary and 230Y/133V Wye secondary configurations
  • 60 Hz operating frequency for broad compatibility
  • Provides essential electrical isolation for motor drives
  • cULus and UL Listed for safety and reliability

Specifications

Application
Drive Isolation
Application
SCR Variable Speed Drives
Brand Name
SolaHD
Connection Type
Delta (Primary) / Wye (Secondary)
Enclosure
Nema 3R with weather shield
Frequency
60 Hz
Frequency Rating
60 HZ
Height
23 IN
KVA Rating
20 kVA
Length
14 IN
Mounting
Floor
NEMA Frame Size
NEMA 3R
Number Of Phases
3
Primary Voltage
460 Delta
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
460Y/266
Secondary Voltage 1, Maximum
230Y/133 V
Secondary Voltage 1, Maximum
460Y/266
Secondary Voltage 1, Minimum
460Y/266
Secondary Voltage 1, Minimum
230Y/133 V
Secondary Voltage 2, Maximum
230Y/133 V
Secondary Voltage 2, Maximum
460Y/266
Secondary Voltage 2, Minimum
460Y/266
Secondary Voltage 2, Minimum
230Y/133 V
Secondary Voltage 3, Maximum
460Y/266
Secondary Voltage 3, Maximum
230Y/133 V
Secondary Voltage 3, Minimum
460Y/266
Secondary Voltage 3, Minimum
230Y/133 V
Series
DT661H
Special Features
Isolation minimizes load disturbances caused by the SCR drive. Taps on all units for adjustments to incoming source voltage. Full capacity secondary neutral as required by the NEC.
Standard
cULus Listed: E77014, UL 506, CSA C22.2 No. 66, Listed E25872, UL 1561
Temperature Rating, Maximum
302 F
Temperature Rating, Maximum
150 C
Temperature Rating, Minimum
302 F
Temperature Rating, Minimum
150 C
Type
Drive Isolation Transformers: 7.5-440 kVA, Three Phase
Type
SCR
Voltage Rating
460 V
Voltage Rating
460 Delta Primary / 230Y/133 Secondary
Voltage Rating
460 Delta Primary / 230Y/133 Secondary VAC
Voltage Rating
460 V (Primary) / 230Y/133 V (Secondary)
Voltage Rating
460 V Delta / 230Y/133 V
Width
18 IN
Package Dimensions (L x W x H)
13.6 IN x 17.9 IN x 23 IN
Package Dimensions (L x W x H)
34.544 cm x 45.466 cm x 58.42 cm
Package Weight (Imperial)
241.000 L
Package Weight (Metric)
109.318 kg
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Frequently Asked Questions

What is the primary voltage for the DT661H20S transformer?

The DT661H20S transformer has a 460 Delta primary voltage.

What is the secondary voltage for the DT661H20S transformer?

The DT661H20S transformer provides a 230Y/133 Volt secondary voltage.

What is the kVA rating of the DT661H20S transformer?

The DT661H20S transformer has a kVA rating of 20.

What are the dimensions of the DT661H20S transformer?

The DT661H20S measures 23.00 in height, 18.00 in width, and 17 in depth.

What is the approximate shipping weight of the DT661H20S?

The approximate shipping weight for the DT661H20S is 210.0 lbs (95.00 kg).

What enclosure design style is the DT661H20S transformer?

The DT661H20S transformer features Enclosure Design Style 2, which is ventilated.

What are the applications for this transformer?

This transformer is specifically designed for SCR (Silicon Control Rectifier) variable speed motor drive applications.

What is the electrical connection number for DT661H20S?

The electrical connection number for the DT661H20S (Group II, 11-440 kVA) is 5.

Is a weather shield required for NEMA 3R rating?

Yes, a weather shield (WS-02) is required for the DT661H20S to achieve a NEMA Type 3R enclosure rating.

What is the warranty period for SolaHD Drive Isolation Transformers?

SolaHD Drive Isolation Transformers come with a 10-year limited warranty.

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.