Hammond Power Solutions DM660JH - 3-Phase Transformer 660 kVA (460VΔ-400Y/231V)

DM660JH

Hammond Power Solutions DM660JH is a three-phase general duty transformer designed for industrial power distribution applications. This 660 kVA unit features a 460V delta primary connection and delivers 400Y/231V through its wye-secondary configuration, 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 66 inches high by 51.5 inches wide by 43 inches deep, and operates at 62 dBA 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 is suitable for manufacturing facilities, industrial plants, and commercial power systems requiring reliable voltage transformation. Key Features & Specifications

• Type: Three-phase general duty transformer
• Voltage: 460V delta primary, 400Y/231V secondary
• Current: 660 kVA capacity
• Frequency: 60Hz
• Impedance: 5.5% - 7.5% standard
• Temperature Rise: 150°C
• Insulation Class: 220°C
• Enclosure: Type 3R/IP24, ANSI 61 Grey
• Dimensions: 66"H × 51.5"W × 43"D (1677×1309×1093mm)
• Sound Level: 62 dBA (NEMA ST-20)
• Seismic Compliance: IBC 2018 (Sds=2.0)
• Vector Configuration: Dyn1 (-30°)
• Material: Aluminum windings

Specifications

• Part Number: DM660JH
• 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 : 400Y/231
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 660
• 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) : 5.5% - 7.5%
• Secondary Termination (NPL) : Mounting Pads
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure PN (NPL) : NJ3-N3R
• Enclosure Dimensions : 66in/1677mm(H), 51.5in/1309mm(W), 43in/1093mm(D)
• Nameplate : Standard
• Standard kVA : 660
• 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 : 803423053000
• GTIN : 00803423053000
• Weight : 3400
• Certification : CSA, UL

Documentation and Resources

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