SG3A0300KK0C - Hammond Power Solutions 300kVA 3-Phase 480D-480Y/277V 60Hz NEMA 3R Copper Wound Transformer

SG3A0300KK0C

SG3A0300KK0C is a 3-phase, 300kVA general purpose distribution transformer from Hammond Power Solutions, designed for reliable power distribution in commercial and industrial applications. This transformer features a 480V delta primary and a 480Y/277V wye secondary, copper windings, and a 150°C temperature rise. It is built with a robust NEMA 3R enclosure suitable for both indoor and outdoor installations, and meets the latest DOE and NRCan energy efficiency standards. The unit is engineered for durability, with precision-cut silicon steel laminations and a 220°C insulation system for long service life.

• 300kVA, 3-phase
• 480V delta primary, 480Y/277V wye secondary
• 60Hz frequency
• Copper windings
• 150°C temperature rise
• NEMA 3R enclosure
• Meets DOE and NRCan energy efficiency standards
• 220°C insulation system
• General purpose distribution
• Indoor and outdoor suitable
• 600V class
• Hammond HPS Sentinel Series

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Specifications

• Part Number: SG3A0300KK0C
• 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 : 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) : 3.2% - 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 : 803423128197
• Weight : 1950
• Certification : CSA, UL

Documentation and Resources

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