Hammond Power Solutions DM440JJ - Drive Isolation Transformer 440 kVA (460V Delta)
Hammond Power Solutions DM440JJ - Drive Isolation Transformer 440 kVA (460V Delta)

Hammond Power Solutions DM440JJ - Drive Isolation Transformer 440 kVA (460V Delta)

Hammond Power Solutions
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Hammond Power Solutions DM440JJ is a three-phase drive isolation transformer designed to protect variable speed drives from power disturbances and electrical noise. It operates with a 460V Delta primary and a 460Y/266V secondary, delivering 440 kVA of power at 60 Hz. The unit weighs 2600 lb and is housed in a NEMA Type 3R / IP24 enclosure, featuring an aluminum winding with a 220°C insulation system and a 150°C rise, along with a coil-mounted thermal warning switch. It is certified to CSA and UL standards, including UL File No. E112313 and CSA File No. LR3902, and is RoHS compliant. This transformer is suited for demanding industrial power distribution environments, including AC and DC variable speed drive applications in both indoor and outdoor settings.

Key Features & Specifications
  • Type: Drive Isolation Transformer
  • Power Rating: 440 kVA
  • Primary Voltage: 460 Delta VAC
  • Secondary Voltage: 460Y/266 VAC
  • Phase: 3-Phase
  • Frequency: 60 Hz
  • Insulation Class: 220°C (150°C rise)
  • Enclosure Type: Type 3R / IP24
  • Winding Material: Aluminum
  • Connection Type: Lug/Pad
  • Mounting: Floor Mounting
  • Thermal Warning Switch: Yes
  • Weight: 2600 lb
  • Certification: CSA, UL, RoHS Compliant


Product Identification
  • UPC: 803423004491
  • GTIN: 00803423004491