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Overview
- 75 kVA power rating with 460 V Delta primary
- 230 Y/133 V secondary winding for 60 Hz operation
- UL, CUL, and CSA listed for compliance and safety
- Compact design reduces space and energy consumption
- Ideal for motors, generators, and variable frequency drives
Specifications
Application | SCR Variable Speed Drives |
Application | Drive Isolation |
Brand Name | SolaHD |
Enclosure | Nema 3R with weather shield |
Frequency | 60 Hz |
Frequency Rating | 60 HZ |
Height | 34 IN |
KVA Rating | 75 kVA |
Length | 22 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 | 460Y/266 |
Secondary Voltage 1, Maximum | 230Y/133 V |
Secondary Voltage 1, Minimum | 460Y/266 |
Secondary Voltage 1, Minimum | 230Y/133 V |
Secondary Voltage 2, Maximum | 460Y/266 |
Secondary Voltage 2, Maximum | 230Y/133 V |
Secondary Voltage 2, Minimum | 230Y/133 V |
Secondary Voltage 2, Minimum | 460Y/266 |
Secondary Voltage 3, Maximum | 230Y/133 V |
Secondary Voltage 3, Maximum | 460Y/266 |
Secondary Voltage 3, Minimum | 460Y/266 |
Secondary Voltage 3, Minimum | 230Y/133 V |
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 |
Width | 28 IN |
Package Dimensions (L x W x H) | 22.5 IN x 28 IN x 34 IN |
Package Dimensions (L x W x H) | 57.15 cm x 71.12 cm x 86.36 cm |
Package Weight (Imperial) | 533.000 L |
Package Weight (Metric) | 241.769 kg |

DT651H93S
Drive Isolation Transformer, 93 kVA, Drive Horse Power 75, 460 Delta Primary, 460Y/266 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
DT651H40S
Drive Isolation Transformer, 40 kVA, Drive Horse Power 30, 460 Delta Primary, 460Y/266 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
DT651H51S
Drive Isolation Transformer, 51 kVA, Drive Horse Power 40, 460 Delta Primary, 460Y/266 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
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
DT651H75S
Drive Isolation Transformer, 75 kVA, Drive Horse Power 50, 460 Delta Primary, 460Y/266 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
DT651H14S
Drive Isolation Transformer, 14 kVA, Drive Horse Power 10, 460 Delta Primary, 460Y/266 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
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
DT651H20S
Drive Isolation Transformer, 20 kVA, Drive Horse Power 15, 460 Delta Primary, 460Y/266 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
DT651H34S
Drive Isolation Transformer, 34 kVA, Drive Horse Power 25, 460 Delta Primary, 460Y/266 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
DT661H14S
Drive Isolation Transformer, 14 kVA, Drive Horse Power 10, 460 Delta Primary, 230Y/133 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
DT651H118S
Drive Isolation Transformer, 118 kVA, Drive Horse Power 100, 460 Delta Primary, 460Y/266 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561
DT631H75S
Drive Isolation Transformer, 75 kVA, Drive Horse Power 60, 575 Delta Primary, 230Y/133 Secondary, 60 HZ , cULus Listed: E7014, UL 506, CSA C22.2No.66, UL Listed E25872, UL1561Frequently Asked Questions
What are the key specifications for the DT661H75S transformer?
The DT661H75S is a 75 kVA, 60 horsepower, three-phase transformer operating at 60 Hz.
What are the primary and secondary voltage ratings for DT661H75S?
The DT661H75S has a 460 Delta primary and a 230Y/133 Volt secondary.
What are the dimensions and shipping weight of the DT661H75S?
The DT661H75S measures 34.00 in high, 28.00 in wide, and 26 in deep, with an approximate shipping weight of 510.0 lbs.
What is the warranty period for SolaHD Drive Isolation Transformers?
SolaHD Drive Isolation Transformers come with a 10-year limited warranty.
What certifications and compliances does this transformer have?
All models are UL Listed (E25872 or E77014), RoHS Compliant, and CSA marked.
What are the primary applications for SolaHD Drive Isolation Transformers?
These transformers are specifically designed for SCR (Silicon Control Rectifier) variable speed motor drive applications.
What is the enclosure type and NEMA rating for this transformer?
The DT661H75S uses Enclosure Design Style 2 (Ventilated) and achieves NEMA Type 3R with an optional weather shield.
Is a weather shield required for NEMA 3R rating?
Yes, a NEMA Type 3R enclosure rating is achieved when the transformer is used with an optional weather shield (WS-30 for this model). Weather shields must be ordered separately.
Can the transformer's incoming source voltage be adjusted?
Yes, all units include taps for adjustments to the incoming source voltage. For the DT661H75S, primary voltage can be adjusted for 483V, 460V, or 437V.
How does the transformer handle line to ground noise?
The transformer features shielding that attenuates line to ground noise.
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.