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Hammond Power DM040BK - Drive isolation transformer, three-phase, 40 kVA, 208–480 Volts, aluminum windings.

Hammond Power DM040BK Drive isolation transformer, three-phase, 40 kVA, 208–480 Volts, aluminum windings.

UPC: 803423052201


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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 DM040BK is a three-phase drive isolation transformer rated at 40 kVA, engineered for variable speed AC and DC drives. This unit provides essential voltage transformation while delivering critical electrical isolation to protect sensitive drive systems from harmonic distortion, common-mode noise, and voltage fluctuations. Built with durable aluminum windings, the DM040BK ensures reliable performance in industrial environments where clean power delivery is essential for motor control applications. The transformer supports input voltages from 208 to 480 VAC, making it compatible with a wide range of industrial power distribution systems. Its design includes terminal block connections and standard mounting hardware for straightforward installation. By isolating the drive from utility power, the DM040BK reduces the risk of electrical interference, extends equipment lifespan, and minimizes unplanned downtime. Ideal for applications requiring stable and clean power, this transformer is a key component in maintaining the integrity and efficiency of variable frequency drive (VFD) systems.
  • The separate primary and secondary windings provide electrical isolation between the incoming line and the SCR load.
  • Terminal block connections with standard mounting hardware
  • Designed to protect variable speed drives from electrical noise and voltage fluctuations

Specifications

Enclosure Colour
ANSI 61 Grey, UL50
Frequency
60 Hz
Height
28.75 in
Height
730.25 mm
Length
25 in
Length
635 mm
Mounting Method
Wall and Floor
Phase
3PH
Primary Voltage
208 V
Secondary Voltage
480 V
Sound Level dBA
Meets NEMA ST-20 standards
Temperature Rise
115 Deg C
Transformer Rating
40KVA
Wall Mounting
Yes
Warranty
10 year warranty
Weight
32 lbs./100ft
Width
23.9 in
Width
607.06 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

What is the voltage rating of the DM040BK?

The DM040BK supports an input voltage range of 208 to 480 volts AC.

What is the kVA rating of this transformer?

The DM040BK has a 40 kVA rating, suitable for medium to high-power applications.

What type of windings does the DM040BK use?

The transformer features aluminum windings for enhanced durability and thermal performance.

Is the DM040BK suitable for variable frequency drives?

Yes, the DM040BK is designed specifically for use with variable frequency drives (VFDs) to isolate and protect sensitive drive systems.

What are the connection types for the DM040BK?

The transformer uses terminal blocks for electrical connections, ensuring secure and reliable wiring.

Does the DM040BK require special mounting hardware?

The DM040BK includes standard mounting hardware for installation, with optional vibration isolation pads available.

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.