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Hammond Power DM440KK - Drive Transformer, 3-phase, 440 kVA, 480V to 480V, aluminum windings.

Hammond Power DM440KK Drive Transformer, 3-phase, 440 kVA, 480V to 480V, aluminum windings.

UPC: 803423052904


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Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Hammond Power DM440KK is a 3-phase drive transformer rated at 440 kVA, designed specifically for variable speed drive systems in industrial applications. This unit provides a voltage transformation from 480V to 480V, ensuring electrical isolation to protect AC and DC variable speed drives from electrical noise, harmonics, and transients that can compromise system performance. Constructed with high-quality aluminum windings, the DM440KK delivers efficient power transfer while minimizing energy losses and heat generation, making it ideal for high-demand environments. The transformer features a ventilated design with convection air cooling, allowing for reliable operation even under non-linear load conditions common in modern drive applications. The three-coil, single 3-leg core design optimizes magnetic efficiency and reduces core losses, enhancing overall durability and operational stability. With a 10-year limited warranty, the DM440KK provides long-term reliability for motor control systems, ensuring stable power quality and isolation in demanding industrial settings.
  • The separate primary and secondary windings provide electrical isolation between the incoming line and the SCR load.
  • Three-coil, single 3-leg core construction for optimal performance
  • Built to UL, CSA, and NEMA standards for industrial reliability

Specifications

Enclosure Colour
ANSI 61 Grey, UL50
Frequency
60 Hz
Height
59 in
Height
1498.6 mm
Length
38.4 in
Length
975.36 mm
Material
Aluminum
Mounting Method
Floor
Phase
3PH
Primary Voltage
480 VAC
Secondary Voltage
460
Series
HPS Drive Isolation Transformers
Sound Level dBA
Meets NEMA ST-20 standards
Temperature Rise
115 Deg C
Transformer Rating
440kVA
Voltage Rating
480V to 480V
Wall Mounting
No
Warranty
10 year warranty
Weight
32 lbs./100ft
Width
48.5 in
Width
1231.9 mm
Winding
Aluminum
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 about Hammond Power

What certifications and standards do Hammond Power products comply with?

Hammond Power products are certified to UL (Underwriters Laboratories) and CSA (Canadian Standards Association) standards in North America. Our products meet rigorous safety and performance requirements, with many items classified as UL Listed Products or Recognized Components. We also comply with international certifications including China Compulsory Certification (CCC), C-Tick for Australian EMC requirements, and ANCE for Mexico.

What is Hammond Power's warranty policy?

Hammond Power provides a standard one-year warranty on all products, covering defects in workmanship and materials. Products will be repaired or replaced free of charge if found defective upon factory inspection. The warranty does not cover damage from improper handling, incorrect application, or faulty installation.

What industries and applications are Hammond Power products used for?

Hammond Power products are engineered for critical industrial and commercial applications across multiple sectors, including petrochemical, mining, construction, renewable energy, e-mobility, power storage, and microgrids. Their comprehensive product range of dry-type transformers, power quality solutions, and magnetic components enables electrical distribution and electrification in diverse industrial environments worldwide.

What are the main product lines offered by Hammond Power?

Hammond Power Solutions offers a comprehensive range of dry-type and liquid-filled transformers for industrial and commercial applications. Their primary product lines include power transformers for renewable energy, e-mobility, data centers, microgrids, and industrial settings. The company provides both standard and custom-designed transformer solutions that are critical to electrical distribution networks across multiple industries.

What are the key features of Hammond Power products?

Hammond Power products feature advanced dry-type and liquid-filled transformers engineered for diverse industrial applications, with capabilities spanning renewable energy, e-mobility, data centers, microgrids, and industrial/commercial sectors. Key features include high-performance electrical steel laminations, windings available in copper or aluminum, advanced insulation systems (VPI or Cast Resin), Basic Impulse Level ranges from 10 kV to 250 kV, and custom design capabilities with over 3,000 unique transformer designs engineered annually.

What environmental ratings do Hammond Power products have?

Hammond Power offers industrial enclosures with comprehensive environmental ratings, including UL/cUL 508A ratings of Type 1, 2, 3, 4, 4X, 12, and 13. Their products meet IEC 60529 IP66 standards, providing robust protection against dust, water ingress, and harsh environmental conditions. Specific ratings vary by product series, with options ranging from indoor Type 1 enclosures to outdoor-rated Type 4X enclosures suitable for challenging industrial environments.

What technical support does Hammond Power offer?

Hammond Power Solutions provides comprehensive technical support through multiple channels. Customers can access technical resources via phone support in Canada, the United States, Mexico, and internationally, with toll-free numbers and regional contact points. Their technical team offers personalized assistance for custom design inquiries, helping customers find standard transformer and power solutions or develop specialized electrical products for various industrial applications.

What communication protocols do Hammond Power products support?

Hammond Power products support multiple industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, and CANopen. These protocols enable flexible connectivity across industrial automation platforms, supporting various network topologies and high-speed data transmission for comprehensive industrial control and monitoring applications.

What accessories are available for Hammond Power products?

Hammond Power offers a comprehensive range of accessories for industrial electrical components, including HME Series handles with key locking and padlocking options, door stop kits, light kit mounting brackets, and standard hardware like mounting screws and washers. These accessories are designed to enhance functionality and installation flexibility across their product lines.

How are Hammond Power products typically installed?

Hammond Power transformers are typically chassis-mounted using precise mounting hole centers and dimensions specific to each product series. Installation involves selecting the appropriate primary voltage configuration, securing the transformer to a mounting surface using the specified mounting holes, and connecting terminals according to the product's schematic. Most Hammond Power transformers feature multiple terminal options like solder or quick-connect terminals, allowing flexible and straightforward installation in industrial control and power distribution applications.