Hammond Power Solutions SK3A0030KB3S - Dry-Type Transformer 30kVA (480D-208Y/120V)

SK3A0030KB3S

Hammond Power Solutions SK3A0030KB3S is a 30 kVA general duty dry-type transformer designed for industrial power distribution applications. This three-phase unit features a 480V delta primary connection and provides 208Y/120V secondary output with wye-N configuration, constructed with aluminum windings rated for 150°C temperature rise and 220°C insulation class. The transformer is housed in a Type 3R/IP24 rated enclosure with ANSI 61 grey finish, measuring 731mm high × 655mm wide × 605mm deep, and operates at a low sound level of 45 dBA. It complies with multiple efficiency regulations including DOE 2016, NRCAN 2019, and NMX 2021, while meeting seismic standards OSHPD and IBC 2018 with Sds=2.0, z/h=1, and lp=1.5 parameters. Typical applications include commercial buildings, industrial facilities, and institutional power systems requiring reliable voltage transformation with seismic resilience. Key Features & Specifications

• Type: 30 kVA Dry-Type Transformer
• Voltage: 480V Delta Primary, 208Y/120V Secondary
• Current: Three-Phase, 60Hz
• Enclosure: Type 3R/IP24, ANSI 61 Grey
• Temperature Rise: 150°C
• Insulation Class: 220°C
• Sound Level: 45 dBA
• Impedance: 2.5% - 6.5%
• Dimensions: 731mm H × 655mm W × 605mm D
• Seismic Compliance: OSHPD, IBC 2018

Specifications

• Part Number: SK3A0030KB3S
• 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
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 34.5326
• Efficiency Regulation : DOE 2016 (US), NRCAN 2019 (Canada), NMX 2021 (Mexico)
• Seismic Compliance : OSHPD, IBC 2018 (Sds=2.0, z/h=1, lp=1.5)
• Sound Level : 45 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) : DH2-N3R
• Enclosure Dimensions : 28.75in/731mm(H), 25.75in/655mm(W), 23.8in/605mm(D)
• Electrostatic Shield : Single
• Nameplate : Standard
• Standard kVA : 30
• Vector Configuration : Dyn1 (-30°)
• Seismic Standard Value : IBC 2018
• OSHPD : Yes
• Seismic IP : lp=1.5
• Seismic ZH : z/h=1
• Seismic SDS Value : Sds=2.0
• Enclosure IR Window : No

Product Data

• UPC : 803423130220
• Weight : 290
• Certification : CSA, UL

Documentation and Resources

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