Hammond Power Solutions DM275KK - 275 kVA Drive Isolation Transformer (480D/480Y/277)
Hammond Power Solutions DM275KK - 275 kVA Drive Isolation Transformer (480D/480Y/277)

Hammond Power Solutions DM275KK - 275 kVA Drive Isolation Transformer (480D/480Y/277)

Hammond Power Solutions
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💡 Important Notice for Hammond Products

Hammond products are Non-Cancellable and Non-Returnable.

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Hammond Power Solutions DM275KK is a 275 kVA three-phase drive isolation transformer engineered to protect variable speed drive systems from power disturbances. It operates with a 480V delta primary and 480Y/277V secondary voltage configuration at 60 Hz, featuring aluminum windings and high-grade silicon steel laminations insulated to 220°C. The unit is housed in a robust Type 3R / IP24 enclosure suitable for indoor or outdoor floor mounting, and includes a coil-mounted thermal warning switch for enhanced protection. It is certified to CSA and UL standards, and is designed to withstand overcurrent conditions of 150% rated load for 60 seconds or 200% for 30 seconds. Typical industrial applications include providing reliable electrical isolation between the incoming line and SCR loads in manufacturing and processing facilities.

Key Features & Specifications
  • Power Rating: 275 kVA
  • Phase: 3
  • Primary Voltage: 480D
  • Secondary Voltage: 480Y/277
  • Frequency: 60 Hz
  • Insulation System: 220°C
  • Winding Material: Aluminum
  • Enclosure Type: Type 3R / IP24
  • Mounting Type: Floor Mount
  • Thermal Protection: Coil Mounted Thermal Warning Switch
  • Dimensions: 34 in L x 39.5 in W x 51.5 in H
  • Weight: 1450 lb
  • Certification: CSA, UL


Product Identification
  • UPC: 803423052782
  • GTIN: 00803423052782