Hammond Power Solutions DM440KK - Three-Phase Transformer 440 kVA (480D/480Y)
Hammond Power Solutions DM440KK - Three-Phase Transformer 440 kVA (480D/480Y)

Hammond Power Solutions DM440KK - Three-Phase Transformer 440 kVA (480D/480Y)

Hammond Power Solutions
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Hammond Power Solutions DM440KK is a three-phase general duty transformer engineered for industrial power distribution, converting 480V delta primary input to 480Y/277V wye secondary output. It delivers 440 kVA capacity with aluminum windings rated for 150°C temperature rise and 220°C insulation class, operating at 60 Hz with 4.5-7% impedance and 60 dBA sound levels. The unit is housed in a Type 3R/IP24 enclosure with ANSI 61 grey finish, measuring 59"H x 48.5"W x 38"D and weighing 2600 lb. It is certified to CSA and UL standards and complies with IBC 2018 seismic requirements (Sds=2.0, z/h=0, lp=1.5). This transformer is suited for commercial and industrial facilities requiring reliable power conversion with standard duty cycle performance.

Key Features & Specifications
  • Type: Three-Phase General Duty Transformer
  • Primary Voltage: 480V Delta
  • Secondary Voltage: 480Y/277V Wye-N
  • Capacity: 440 kVA
  • Frequency: 60 Hz
  • Impedance: 4.5-7%
  • Material: Aluminum Windings
  • Temperature Rise: 150°C
  • Insulation Class: 220°C
  • Enclosure Type: Type 3R / IP24
  • Dimensions: 59"H x 48.5"W x 38"D
  • Weight: 2600 lb
  • Sound Level: 60 dBA
  • Seismic Compliance: IBC 2018 (Sds=2.0)
  • Certification: CSA, UL
  • Phase: 3


Product Identification
  • UPC: 803423052904