DM660JJ - Hammond Power Solutions 660 kVA 3-Phase Dry Type Drive Isolation Transformer 460 Delta to 460Y Volts

DM660JJ

DM660JJ is a 660 kVA, 3-phase dry type drive isolation transformer from Hammond Power Solutions designed for industrial power distribution.DM660JJ features a primary voltage of 460 volts Delta and a secondary voltage of 460 volts Wye (460Y/266V), suitable for drive isolation applications. It is engineered to withstand overcurrent conditions of 150% rated load for 60 seconds or 200% for 30 seconds, ensuring robust performance in demanding environments. This transformer is floor mountable and meets UL and CSA short circuit withstand requirements.

• 660 kVA power rating
• 3-phase dry type construction
• Primary voltage: 460 V Delta
• Secondary voltage: 460 V Wye (460Y/266 V)
• Designed for drive isolation
• Overcurrent withstand: 150% rated load for 60 seconds, 200% for 30 seconds
• Floor mounting type
• Meets UL and CSA short circuit withstand standards

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Specifications

• Part Number: DM660JJ
• 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 : 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 : 803423004736
• GTIN : 00803423004736
• Weight : 3300
• Certification : CSA, UL

Documentation and Resources

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