SG3A0300KK - Hammond Power Solutions 300kVA 3-Phase Dry Type Transformer 480 Delta to 480Y/277V NEMA 3R Aluminum Wound

SG3A0300KK

SG3A0300KK is a 300kVA, 3-phase dry type transformer from Hammond Power Solutions designed for general purpose distribution applications.This transformer features a primary voltage of 480V Delta and a secondary voltage of 480Y/277V, operating at 60Hz. It is constructed with aluminum windings and housed in a NEMA 3R rated enclosure suitable for outdoor use with protection against rain and snow. The unit is ventilated and rated for a 150°C temperature rise, making it ideal for supplying appliance, lighting, heating, motorized machine, and power loads in electrical distribution systems.

Key Specifications
• Power Rating: 300 kVA
• Phase: 3-Phase
• Primary Voltage: 480V Delta
• Secondary Voltage: 480Y/277V
• Frequency: 60 Hz
• Winding Material: Aluminum
• Enclosure Rating: NEMA 3R
• Temperature Rise: 150°C
• Type: Dry Type Transformer
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Specifications

• Part Number: SG3A0300KK
• 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
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 300
• 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) : 3.5% - 7%
• Secondary Termination (NPL) : Mounting Pads
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure PN (NPL) : DH5-N3R
• Enclosure Dimensions : 52in/1321mm(H), 37.5in/953mm(W), 34in/864mm(D)
• 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



Product Data

• UPC : 803423125004
• Weight : 1900
• Certification : CSA, UL



Documentation and Resources

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