Hammond Power Solutions SK3A0300KK9K - Dry-Type Transformer 300kVA 480D-480Y/277V

SK3A0300KK9K

Hammond Power Solutions SK3A0300KK9K is a three-phase dry-type transformer designed for general duty industrial power distribution applications. This transformer features a 480V delta primary and 480Y/277V wye secondary configuration with a 300 kVA rating, operating at 60Hz frequency with 150°C temperature rise and 220°C insulation class. The unit is housed in a Type 3R/IP24 rated enclosure with ANSI 61 grey finish, measuring 52 inches high by 37.5 inches wide by 34 inches deep, and produces a maximum sound level of 55 dBA. It complies with DOE 2016, NRCAN 2019, and NMX 2021 efficiency regulations while meeting IBC 2018 seismic standards with Sds=2.0, z/h=0, and lp=1.5 parameters. Typical applications include industrial facilities, commercial buildings, and power distribution systems requiring reliable voltage transformation with standard 4-7.5% impedance characteristics. Key Features & Specifications

• Type: Three-Phase Dry-Type Transformer
• Voltage: 480V Delta Primary, 480Y/277V Secondary
• Current: 300 kVA Rating
• Frequency: 60Hz
• Temperature Rise: 150°C
• Insulation Class: 220°C
• Enclosure: Type 3R/IP24, ANSI 61 Grey
• Dimensions: 52"H × 37.5"W × 34"D
• Sound Level: 55 dBA
• Impedance: 4% - 7.5%
• Efficiency Compliance: DOE 2016, NRCAN 2019, NMX 2021
• Seismic Standard: IBC 2018 (Sds=2.0)

Specifications

• Part Number: SK3A0300KK9K
• 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
• Secondary Voltage : 480Y/277
• Secondary Connection : Wye-N
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 355.598
• Efficiency Regulation : DOE 2016 (US), NRCAN 2019 (Canada), NMX 2021 (Mexico)
• Seismic Compliance : IBC 2018 (Sds=2.0, z/h=0, lp=1.5)
• Sound Level : 55 dBA (NEMA ST-20)
• Impedance (Std) : 4% - 7.5%
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure Dimensions : 52in/1321mm(H), 37.5in/953mm(W), 34in/864mm(D)
• Electrostatic Shield : Single
• Nameplate : Standard
• Standard kVA : 300
• Vector Configuration : Dyn1 (-30°)
• Seismic Standard Value : IBC 2018
• OSHPD : No
• Seismic IP : lp=1.5
• Seismic ZH : z/h=0
• Seismic SDS Value : Sds=2.0
• Enclosure IR Window : No
• Primary FCAN (Std) : 2x2.5%
• Primary Termination (Std) : Mounting Pads

Product Data

• UPC : 803423129958
• Weight : 1600
• Certification : CSA, UL

Documentation and Resources

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