Hammond Power Solutions DM550JJ - 3-Phase Transformer 550kVA 460D/460Y/266V

DM550JJ

Hammond Power Solutions DM550JJ is a three-phase general duty transformer designed for industrial power distribution applications. This 550 kVA unit operates at 60Hz with primary voltage of 460V delta and secondary voltage of 460Y/266V wye-n configuration, featuring aluminum windings rated for 150°C temperature rise with 220°C insulation class. The transformer is housed in a Type 3R/IP24 enclosure with ANSI 61 grey finish, measuring 59" H × 48.5" W × 38" D, and produces a sound level of 62 dBA. It complies with IBC 2018 seismic standards (Sds=2.0, z/h=0, lp=1.5) and is approved for installation in US and LATAM markets. Typical applications include industrial facilities requiring reliable power conversion with standard impedance range of 4.5% to 7% and Dyn1 vector configuration. Key Features & Specifications

• Type: Three-Phase General Duty Transformer
• Voltage: 460V Delta Primary / 460Y/266V Wye-N Secondary
• Current: 550 kVA Capacity
• Frequency: 60Hz
• Material: Aluminum Windings
• Temperature Rise: 150°C
• Insulation Class: 220°C
• Impedance: 4.5% - 7% Standard
• Enclosure: Type 3R / IP24, ANSI 61 Grey
• Dimensions: 59" H × 48.5" W × 38" D (1499mm × 1232mm × 966mm)
• Sound Level: 62 dBA (NEMA ST-20)
• Seismic Compliance: IBC 2018 (Sds=2.0, z/h=0, lp=1.5)
• Vector Configuration: Dyn1 (-30°)

Specifications

• Part Number: DM550JJ
• 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 : 550
• 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 : 62 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 : 550
• 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 : 803423004613
• GTIN : 00803423004613
• 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)