Hammond Power Solutions DM220BK - 3-Phase Transformer 208D-480Y/277V 220kVA

DM220BK

Hammond Power Solutions DM220BK is a three-phase general duty transformer designed for industrial power distribution applications. This 220 kVA unit features a 208V delta primary connection and 480Y/277V wye secondary configuration, operating at 60Hz frequency 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 41" H × 32" W × 25.5" D, and produces a maximum sound level of 55 dBA. It complies with IBC 2018 seismic standards (Sds=2.0, z/h=0, lp=1.5) and is approved for installation in both US and LATAM markets. Typical applications include industrial facilities, commercial buildings, and power distribution systems requiring voltage transformation from 208V to 480Y/277V. Key Features & Specifications

• Type: Three-Phase General Duty Transformer
• Primary Voltage: 208V Delta
• Secondary Voltage: 480Y/277V Wye
• kVA Rating: 220 kVA
• Frequency: 60Hz
• Impedance: 3.5% - 6.5%
• Material: Aluminum Windings
• Temperature Rise: 150°C
• Insulation Class: 220°C
• Enclosure: Type 3R / IP24
• Enclosure Finish: ANSI 61 Grey
• Dimensions: 41" H × 32" W × 25.5" D
• Sound Level: 55 dBA
• Seismic Compliance: IBC 2018 (Sds=2.0)
• Vector Configuration: YNd1 (-30°)

Specifications

• Part Number: DM220BK
• Manufacturer : Hammond Power Solutions
• Brand : Hammond Power Solutions
• Category : Transformer
• Phase : 3
• Enclosure Grade : Standard
• Duty : General Duty
• Frequency : 60Hz
• Primary Voltage : 208D
• Primary Connection : Delta
• Primary FCAN (NPL) : 2x2.5%
• Primary FCBN (NPL) : 2x2.5%
• Secondary Voltage : 480Y/277
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 220
• 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) : 3.5% - 6.5%
• Secondary Termination (NPL) : Mechanical Lugs
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure PN (NPL) : NH4-N3R
• Enclosure Dimensions : 41in/1042mm(H), 32in/813mm(W), 25.5in/648mm(D)
• Nameplate : Standard
• Standard kVA : 220
• Vector Configuration : YNd1 (-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 : 803423052683
• Weight : 1150
• Certification : CSA, UL

Documentation and Resources

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