SK3A0030KK9K - Hammond Power Solutions 30kVA 480D 480Y/277V 3-Phase Transformer NEMA 3R

SK3A0030KK9K

SK3A0030KK9K is a three-phase general purpose distribution transformer rated 30kVA with primary voltage 480 delta and secondary voltage 480Y/277V, designed for appliance, lighting, heating, and motorized machine loads in commercial and industrial applications. This HPS Sentinel G series transformer features copper wound construction, 150 degree Celsius temperature rise, 220 degree Celsius insulation class, and NEMA 3R heavy-duty ventilated enclosure suitable for indoor and outdoor use with protection against rain and snow. The unit meets North American efficiency standards including DOE 2016 and NRCan 2019 compliance, with UL listing and CSA certification for reliable performance and safety compliance.

• Capacity: 30kVA
• Primary Voltage: 480 Delta
• Secondary Voltage: 480Y/277V
• Phase: Three Phase
• Frequency: 60 Hz
• Winding Material: Copper
• Temperature Rise: 150 degrees Celsius
• Insulation Class: 220 degrees Celsius
• Enclosure Type: NEMA 3R
• BIL Rating: 10 kV
• UL Listed: File E112313
• CSA Certified: File LR3902

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Specifications

• Part Number: SK3A0030KK9K
• 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 : 480Y/277
• Secondary Connection : Wye-N
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 33.2039
• 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 : 803423129897
• Weight : 320
• Certification : CSA, UL

Documentation and Resources

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