Hammond Power Solutions SK3A0500KB3K - 500 kVA Transformer 480D-208Y/120V

SK3A0500KB3K

Hammond Power Solutions SK3A0500KB3K is a three-phase general duty transformer designed for industrial power distribution applications. This 500 kVA unit features a 480V delta primary connection and provides 208Y/120V secondary output with a Dyn1 vector configuration for flexible system integration. The transformer is housed in a Type 3R/IP24 rated enclosure measuring 64"H x 49"W x 39"D with ANSI 61 grey finish, offering robust protection against environmental elements. It complies with multiple efficiency regulations including DOE 2016, NRCAN 2019, and NMX 2021, and meets IBC 2018 seismic standards with Sds=2.0 rating. Typical applications include industrial facilities, commercial buildings, and institutional power systems requiring reliable voltage transformation with 150°C temperature rise and 220°C insulation class capabilities. Key Features & Specifications

• Type: Three-Phase General Duty Transformer
• Voltage: 480V Delta Primary, 208Y/120V Secondary
• Current: 500 kVA Standard Rating
• Frequency: 60Hz
• Enclosure: Type 3R/IP24, ANSI 61 Grey
• Dimensions: 64"H x 49"W x 39"D (1626mm x 1245mm x 991mm)
• Temperature Rise: 150°C
• Insulation Class: 220°C
• Impedance: 4% - 7.5% Standard
• Sound Level: 63 dBA (NEMA ST-20)
• Efficiency Compliance: DOE 2016, NRCAN 2019, NMX 2021
• Seismic Rating: IBC 2018 (Sds=2.0)

Specifications

• Part Number: SK3A0500KB3K
• 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 : 642.262
• 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 : 63 dBA (NEMA ST-20)
• Impedance (Std) : 4% - 7.5%
• Secondary Termination (NPL) : Mounting Pads
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure PN (NPL) : DH6-N3R
• Enclosure Dimensions : 64in/1626mm(H), 49in/1245mm(W), 39in/991mm(D)
• Electrostatic Shield : Single
• Nameplate : Standard
• Standard kVA : 500
• 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

Product Data

• UPC : 803423130329
• Weight : 3350
• Certification : CSA, UL

Documentation and Resources

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