DM440KD - Hammond Power Solutions 440 kVA 480-240V 3-Phase Drive Isolation Transformer

DM440KD

DM440KD is a 440 kVA, 3-phase drive isolation transformer from Hammond Power Solutions designed for industrial applications requiring reliable voltage transformation and isolation.

This transformer features a primary voltage of 480 VAC and a secondary voltage of 240 VAC, optimized for drive isolation use. It is an encapsulated dry-type transformer with aluminum windings, built to withstand overcurrent conditions of 150% rated load for 60 seconds or 200% for 30 seconds. The unit is designed for rugged performance in variable speed drive environments and meets applicable UL and CSA standards. It is typically wall mounted and constructed with a Type 3R enclosure for protection.

• Power Rating: 440 kVA
• Voltage: 480 VAC primary, 240 VAC secondary
• Phase: 3-phase
• Transformer Type: Drive Isolation
• Winding Material: Aluminum
• Mounting Type: Wall mount
• Enclosure: Type 3R
• Overcurrent Withstand: 150% rated load for 60 seconds, 200% for 30 seconds
• Frequency: 60 Hz
• Certification: UL and CSA standards compliant

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Specifications

• Part Number: DM440KD
• 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) : 2x2.5%
• Primary FCBN (NPL) : 2x2.5%
• Secondary Voltage : 240Y/139
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 440
• 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 : 60 dBA (NEMA ST-20)
• Impedance (Std) : 4.5% - 7%
• Secondary Termination (NPL) : Mounting Pads
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure PN (NPL) : NJ2-N3R
• Enclosure Dimensions : 59in/1499mm(H), 48.5in/1232mm(W), 38in/966mm(D)
• Nameplate : Standard
• Standard kVA : 440
• 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 : 803423004514
• GTIN : 00803423004514
• Weight : 2750
• Certification : CSA, UL

Documentation and Resources

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