DM145JHC - Hammond Power Solutions 145 kVA 460 Delta V AC Primary 400Y VAC Secondary Drive Isolation Transformer NEMA 3R

DM145JHC

DM145JHC is a three-phase dry type drive isolation transformer designed for demanding industrial applications. This unit features a 460 Delta V AC primary and a 400Y VAC secondary, providing reliable voltage transformation for variable speed drives and other power systems. The transformer is built with a copper winding and a robust NEMA 3R enclosure for protection in harsh environments. Engineered for durability and performance, the DM145JHC offers a 150°C temperature rise and a 220°C insulation system. It is suitable for floor mounting and is designed to meet UL and CSA short circuit withstand requirements. The transformer is ideal for use in industrial facilities where reliable power distribution and protection from electrical noise are critical.

• Part Number: DM145JHC
• Manufacturer: Hammond Power Solutions
• Type: Drive Isolation Transformer
• Primary Voltage: 460 Delta V AC
• Secondary Voltage: 400Y VAC
• Power Rating: 145 kVA
• Frequency: 60 Hz
• Mounting Type: Floor Mount
• Enclosure: NEMA 3R
• Conductor Material: Copper
• Temperature Rise: 150°C
• Insulation System: 220°C

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Specifications

• Part Number: DM145JHC
• 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) : 1x5%
• Primary FCBN (NPL) : 1x5%
• Secondary Voltage : 400Y/231
• Secondary Connection : Wye-N
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 145
• 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 : 50 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) : NH4-N3R
• Enclosure Dimensions : 41in/1042mm(H), 32in/813mm(W), 25.5in/648mm(D)
• Nameplate : Standard
• Standard kVA : 145
• 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 : 803423052591
• Weight : 970
• Certification : CSA, UL

Documentation and Resources

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