Hammond Power Solutions DM440KKC - Three-Phase Transformer 440 kVA 480D/480Y/277V
Hammond Power Solutions DM440KKC - Three-Phase Transformer 440 kVA 480D/480Y/277V

Hammond Power Solutions DM440KKC - Three-Phase Transformer 440 kVA 480D/480Y/277V

Hammond Power Solutions
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Hammond products are Non-Cancellable and Non-Returnable.

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Hammond Power Solutions DM440KKC is a three-phase general duty transformer engineered for industrial power distribution, providing reliable voltage transformation and isolation for facility electrical systems. It operates with a 480V delta primary configuration and delivers a 480Y/277V secondary output at 440 kVA capacity, supporting 60Hz frequency with standard impedance from 4.5% to 7%. The unit is housed in a Type 3R/IP24 rated enclosure finished in ANSI 61 Grey, measuring 59 inches high by 48.5 inches wide by 38 inches deep, with a weight of 2550 lb, and features a 150°C temperature rise with 220°C insulation class. It is certified to CSA and UL standards, complies with IBC 2018 seismic requirements (Sds=2.0, z/h=0, lp=1.5), and meets NEMA ST-20 sound level specifications at 60 dBA. Typical applications include power distribution in industrial facilities, commercial buildings, and systems requiring wye-secondary configuration for lighting and motor loads.

Key Features & Specifications
  • Type: Three-Phase General Duty Transformer
  • Primary Voltage: 480D
  • Secondary Voltage: 480Y/277
  • Phase: 3
  • Capacity: 440 kVA
  • Frequency: 60Hz
  • Impedance: 4.5% - 7% Standard
  • Enclosure Type: Type 3R / IP24
  • Enclosure Finish: ANSI 61 Grey
  • Temperature Rise: 150°C
  • Insulation Class: 220°C
  • Dimensions: 59"H × 48.5"W × 38"D
  • Weight: 2550 lb
  • Sound Level: 60 dBA (NEMA ST-20)
  • Seismic Compliance: IBC 2018 (Sds=2.0)
  • Vector Configuration: Dyn1 (-30°)
  • Certification: CSA, UL


Product Identification
  • UPC: 803423052911