DM440JH - Hammond Power Solutions Drive Isolation Transformer 440kVA 460-400V 3PH

DM440JH

DM440JH is a three-phase drive isolation transformer rated at 440 kVA with 460 VAC delta primary and 400 VAC secondary voltages, designed for industrial drive applications requiring voltage conversion and isolation. This transformer features a non-efficient standard design with thermal warning switch protection and is engineered to withstand overcurrent conditions of 150% of rated load for 60 seconds or 200% of rated load for 30 seconds. The unit is constructed with aluminum windings and floor-mounted configuration for reliable performance in demanding electrical distribution systems.

• Power Rating: 440 kVA
• Primary Voltage: 460 VAC Delta
• Secondary Voltage: 400 VAC
• Phase Configuration: Three Phase
• Frequency: 60 Hz
• Winding Material: Aluminum
• Mounting Type: Floor Mount
• Thermal Warning Switch: Included
• Overcurrent Withstand: 150% for 60 seconds or 200% for 30 seconds
• UPC: 803423052881

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Specifications

• Part Number: DM440JH
• Manufacturer : Hammond Power Solutions
• Brand : Hammond Power Solutions
• Category : Transformer
• Phase : 3
• Enclosure Grade : Standard
• Duty : General Duty
• Frequency : 60Hz
• Primary Voltage : 460D
• Primary Connection : Delta
• Primary FCAN (NPL) : 2x2.3%
• Primary FCBN (NPL) : 2x2.3%
• Secondary Voltage : 400Y/231
• 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 : 803423052881
• Weight : 2410
• Certification : CSA, UL

Documentation and Resources

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