SK3A0075KB9K - Hammond Power Solutions 75kVA 3-Phase 480-208Y/120V NEMA 3R

SK3A0075KB9K

SK3A0075KB9K is a three-phase dry-type distribution transformer designed for general-purpose applications requiring efficient voltage conversion and reliable performance in indoor or outdoor environments.

This HPS Sentinel K Series transformer features a 75 kVA capacity with a 480 Delta primary voltage and 208Y/120 secondary voltage configuration. The unit is housed in a heavy-duty NEMA 3R ventilated enclosure suitable for both indoor and outdoor installations. It operates at 60 Hz with a 150 degree Celsius temperature rise and 220 degree Celsius insulation class. The transformer is constructed with aluminum windings and precision-cut silicon steel laminations for optimal performance and short-circuit capability. Front-accessible separate high and low voltage terminals with connectors accommodate both aluminum and copper cable installations.

• Capacity: 75 kVA
• Phase: 3-Phase
• Primary Voltage: 480 Delta
• Secondary Voltage: 208Y/120
• Frequency: 60 Hz
• Temperature Rise: 150 degree Celsius
• Insulation Class: 220 degree Celsius
• Enclosure Type: NEMA 3R Ventilated
• Winding Material: Aluminum
• BIL Rating: 10 kV
• UL Listed: File E112313
• CSA Certified: File LR3902

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Specifications

• Part Number: SK3A0075KB9K
• Manufacturer : Hammond Power Solutions
• Brand : Hammond Power Solutions
• Category : Transformer
• Phase : 3
• Enclosure Grade : Standard
• Duty : General Duty
• Frequency : 60Hz
• Primary Voltage : 480D
• Primary Connection : Delta
• Primary FCAN (NPL) : 2x2.5%
• Primary FCBN (NPL) : 4x2.5%
• Secondary Voltage : 208Y/120
• Secondary Connection : Wye-N
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 84.5207
• Efficiency Regulation : DOE 2016 (US), NRCAN 2019 (Canada), NMX 2021 (Mexico)
• Seismic Compliance : IBC 2018 (Sds=2.0, z/h=1, lp=1.5)
• Sound Level : 50 dBA (NEMA ST-20)
• Impedance (Std) : 2.5% - 6.5%
• Secondary Termination (NPL) : Mechanical Lugs
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure PN (NPL) : DH3-N3R
• Enclosure Dimensions : 36in/915mm(H), 28.25in/718mm(W), 27in/686mm(D)
• Electrostatic Shield : Single
• Nameplate : Standard
• Standard kVA : 75
• Vector Configuration : Dyn1 (-30°)
• Seismic Standard Value : IBC 2018
• OSHPD : No
• Seismic IP : lp=1.5
• Seismic ZH : z/h=1
• Seismic SDS Value : Sds=2.0
• Enclosure IR Window : No

Product Data

• UPC : 803423129477
• Weight : 665
• Certification : CSA, UL

Documentation and Resources

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