DM040KD - Hammond Power Solutions 40 kVA 480 Delta VAC - 240Y VAC Drive Isolation Transformer NEMA 3R Enclosure

DM040KD

DM040KD is a Hammond Power Solutions drive isolation transformer designed for industrial and commercial applications requiring reliable power distribution and isolation. This transformer features a robust NEMA 3R enclosure for protection against environmental factors and is suitable for floor mounting installations. The DM040KD provides a 480 Delta VAC primary voltage and a 240Y VAC secondary voltage, with a 40 kVA power rating and a 60 Hz frequency. It is built with an aluminum conductor and a 220°C insulation system, offering a typical temperature rise of 150°C. The transformer is engineered to withstand overcurrent conditions, supporting 150% of rated load for 60 seconds or 200% for 30 seconds. Its impedance is typically between 3% and 6%, and it meets UL and CSA short circuit withstand requirements.

• 40 kVA power rating
• 480 Delta VAC primary voltage
• 240Y VAC secondary voltage
• 60 Hz frequency
• Aluminum conductor
• 220°C insulation system
• 150°C typical temperature rise
• 3% to 6% impedance
• Floor mounting
• NEMA 3R enclosure
• UL and CSA short circuit withstand
• Overcurrent withstand: 150% for 60 seconds or 200% for 30 seconds

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Specifications

• Part Number: DM040KD
• Manufacturer : Hammond Power Solutions
• Brand : Hammond Power Solutions
• Category : Transformer
• Phase : 3
• Enclosure Grade : Standard
• Duty : General Duty
• Frequency : 60Hz
• Primary Voltage : 480D
• Primary Connection : Delta
• Primary FCAN (NPL) : 1x5%
• Primary FCBN (NPL) : 1x5%
• Secondary Voltage : 240Y/139
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 40
• Efficiency Regulation : No Efficiency Specification; approved for installation in US and LATAM
• Seismic Compliance : IBC 2018 (Sds=2.0, z/h=0, lp=1.5)
• Sound Level : 45 dBA (NEMA ST-20)
• Impedance (Std) : 3% - 6%
• Secondary Termination (NPL) : Mechanical Lugs
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure PN (NPL) : NH6-N3R
• Enclosure Dimensions : 28.75in/731mm(H), 23.9in/608mm(W), 25in/635mm(D)
• Nameplate : Standard
• Standard kVA : 40
• Vector Configuration : Dyn1 (-30°)
• Seismic Standard Value : IBC 2018
• OSHPD : No
• Seismic IP : lp=1.5
• Seismic ZH : z/h=0
• Seismic SDS Value : Sds=2.0
• Enclosure IR Window : No

Product Data

• UPC : 803423003197
• GTIN : 00803423003197
• Weight : 340
• Certification : CSA, UL

Documentation and Resources

• Engineering Drawing (PDF)
• Brochure
• Hammond Product Application Videos
• Frequently Asked Questions
• Troubleshooting Guide
• Enclosure CAD Drawing (PDF)