DM027KD - Hammond Power Solutions 3-Phase 27 kVA 480V-240Y/139V Aluminum Drive Isolation Transformer

DM027KD

DM027KD is a 3-phase, 27 kVA drive isolation transformer from Hammond Power Solutions designed for industrial power distribution applications.

This transformer features a primary voltage of 480 volts delta and a secondary voltage of 240 volts wye with a 139 volts tap, operating at 60 Hz frequency. It uses aluminum conductors and is built to withstand overcurrent conditions of 150% rated load for 60 seconds or 200% for 30 seconds. The unit complies with IBC 2018 seismic standards and offers low sound levels around 45 dBA with impedance typically between 3 to 6%. Mounting options include floor or wall mounting, and it is constructed with a 220°C insulation system for reliable thermal performance.

• Power rating: 27 kVA
• Phase: 3-phase
• Primary voltage: 480V delta
• Secondary voltage: 240Y/139V
• Frequency: 60 Hz
• Conductor material: Aluminum
• Overcurrent withstand: 150% for 60 seconds, 200% for 30 seconds
• Impedance: 3-6%
• Sound level: 45 dBA
• Mounting type: Floor or wall mount
• Insulation system: 220°C
• Seismic compliance: IBC 2018 standards

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Specifications

• Part Number: DM027KD
• Manufacturer : Hammond Power Solutions
• Brand : Hammond Power Solutions
• Category : Transformer
• Phase : 3
• Enclosure Grade : Standard
• Duty : General Duty
• Frequency : 60Hz
• Primary Voltage : 480D
• Primary Connection : Delta
• Primary FCAN (NPL) : 1x5%
• Primary FCBN (NPL) : 1x5%
• Secondary Voltage : 240Y/139
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 27
• 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 : 45 dBA (NEMA ST-20)
• Impedance (Std) : 3% - 6%
• Secondary Termination (NPL) : Mechanical Lugs
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure PN (NPL) : NH6-N3R
• Enclosure Dimensions : 28.75in/731mm(H), 23.9in/608mm(W), 25in/635mm(D)
• Nameplate : Standard
• Standard kVA : 27
• 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 : 080342300295
• GTIN : 00803423002954
• Weight : 280
• Certification : CSA, UL

Documentation and Resources

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