Hammond Power Solutions DM275JJ - 3-Phase Transformer 275kVA (460V Delta-Wye)

DM275JJ

Hammond Power Solutions DM275JJ is a three-phase general duty transformer designed for industrial power distribution applications. The unit features a 460V delta primary configuration and 460Y/266V wye-n secondary with 275 kVA capacity, operating at 60Hz frequency with standard impedance ranging from 4% to 7%. Constructed with aluminum windings and housed in a Type 3R/IP24 enclosure finished in ANSI 61 grey, the transformer maintains a 150°C temperature rise with 220°C insulation class and produces 55 dBA maximum sound levels. Compliant with IBC 2018 seismic standards (Sds=2.0, z/h=0, lp=1.5) and approved for installation in US and LATAM markets, this transformer meets rigorous industrial requirements. Typical applications include manufacturing facilities, commercial buildings, and industrial plants requiring reliable three-phase power conversion with Dyn1 vector configuration. Key Features & Specifications

• Type: Three-phase general duty transformer
• Voltage: 460V delta primary, 460Y/266V secondary
• Current: 275 kVA capacity
• Frequency: 60Hz
• Impedance: 4% - 7% standard
• Material: Aluminum windings
• Temperature Rise: 150°C
• Insulation Class: 220°C
• Enclosure: Type 3R / IP24, ANSI 61 Grey
• Dimensions: 51.5in/1309mm(H), 39.5in/1004mm(W), 34in/864mm(D)
• Sound Level: 55 dBA (NEMA ST-20)
• Seismic Compliance: IBC 2018 (Sds=2.0, z/h=0, lp=1.5)
• Vector Configuration: Dyn1 (-30°)

Specifications

• Part Number: DM275JJ
• 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) : 2x2.5%
• Primary FCBN (NPL) : 2x2.5%
• Secondary Voltage : 460Y/266
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 275
• 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 : 55 dBA (NEMA ST-20)
• Impedance (Std) : 4% - 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 : 275
• 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 : 803423004255
• GTIN : 00803423004255
• Weight : 1450
• Certification : CSA, UL

Documentation and Resources

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