DM330JJC - Hammond Power Solutions 330kVA 460V 3-Phase Drive Isolation Transformer Copper

DM330JJC

DM330JJC is a three-phase drive isolation transformer designed for demanding industrial applications, providing reliable electrical isolation and voltage transformation for variable speed drives. This Hammond Power Solutions transformer features a copper winding construction and is rated for 330kVA at 460V primary, with a delta primary connection and a single secondary for 6-pulse drive compatibility. The unit is built with a 220°C insulation system (150°C rise) and is engineered to withstand overcurrent up to 150% for 60 seconds or 200% for 30 seconds. It is floor-mounted and meets UL and CSA standards for safety and performance.

• Part Number: DM330JJC
• Manufacturer: Hammond Power Solutions
• Rated kVA: 330
• Primary Voltage: 460V Delta
• Secondary: 1 (6-pulse)
• Phase: Three-phase
• Winding Material: Copper
• Insulation System: 220°C (150°C rise)
• Overcurrent Withstand: 150% for 60 seconds, 200% for 30 seconds
• Mounting Type: Floor
• Frequency: 60 Hz
• Vector Configuration: Dyn1 (-30°)
• Sound Level: 60 dBA
• Thermal Protection: Normally closed thermostats, 200°C setpoint
• UL Listed
• CSA Certified

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Specifications

• Part Number: DM330JJC
• 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
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 330
• 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 : 60 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) : NJ1-N3R
• Enclosure Dimensions : 51.5in/1309mm(H), 39.5in/1004mm(W), 34in/864mm(D)
• Nameplate : Standard
• Standard kVA : 330
• 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 : 803423004385
• GTIN : 00803423004385
• Weight : 1800
• Certification : CSA, UL

Documentation and Resources

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