Hammond Power Solutions DM330KD - 330 kVA Transformer 480D-240Y/139V

DM330KD

Hammond Power Solutions DM330KD is a three-phase general duty transformer designed for industrial power distribution applications. The unit features a 480V delta primary configuration with dual 2.5% full capacity above normal taps and delivers 240Y/139V secondary voltage through a wye-N connection at 330 kVA capacity. Constructed with aluminum windings rated for 150°C temperature rise and 220°C insulation class, the transformer is housed in a Type 3R/IP24 enclosure with ANSI 61 grey finish measuring 51.5 inches high by 39.5 inches wide by 34 inches deep. The unit complies with IBC 2018 seismic standards (Sds=2.0, z/h=0, lp=1.5) and operates at 60 dBA sound level while being approved for installation in US and LATAM markets. Typical applications include industrial facilities, manufacturing plants, and commercial power systems requiring reliable three-phase power conversion. Key Features & Specifications

• Type: Three-Phase General Duty Transformer
• Primary Voltage: 480V Delta
• Secondary Voltage: 240Y/139V Wye-N
• Capacity: 330 kVA
• Frequency: 60 Hz
• Impedance: 4.5% - 7%
• Temperature Rise: 150°C
• Insulation Class: 220°C
• Enclosure: Type 3R / IP24
• Sound Level: 60 dBA
• Vector Configuration: Dyn1 (-30°)
• Material: Aluminum Windings

Specifications

• Part Number: DM330KD
• 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 : 330
• 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) : NJ1-N3R
• Enclosure Dimensions : 51.5in/1309mm(H), 39.5in/1004mm(W), 34in/864mm(D)
• Nameplate : Standard
• Standard kVA : 330
• 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 : 803423004392
• GTIN : 00803423004392
• Weight : 1750
• Certification : CSA, UL

Documentation and Resources

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