SG3A0300KY - Hammond Power Solutions 300kVA 480D 3PH Dry Type NEMA 3R

SG3A0300KY

SG3A0300KY is a Sentinel G energy-efficient general purpose distribution transformer designed for low-voltage power distribution applications rated 600 volts and below. SG3A0300KY features a 300 kVA power rating with 480 Delta primary voltage and multi-tap secondary voltage options including 220/380Y, 231/400Y, 240/416Y, and 248/430Y configurations. This three-phase dry-type transformer is housed in a heavy-duty ventilated NEMA 3R enclosure with aluminum windings and 150 degree Celsius temperature rise insulation system. The unit meets the latest U.S. DOE 10 CFR Part 431 efficiency standards and operates at 60 Hz frequency with front-accessible separate high and low voltage terminals for easy cable installation.

• Power Rating: 300 kVA
• Phase: 3 Phase
• Primary Voltage: 480 Delta VAC
• Secondary Voltage: Multi-tap 220/380Y, 231/400Y, 240/416Y, 248/430Y VAC
• Type: Dry Type Transformer
• Enclosure: NEMA 3R Heavy Duty Ventilated
• Insulation System: 220 degrees Celsius (150 degree Celsius rise)
• Winding Material: Aluminum
• Frequency: 60 Hz
• BIL Rating: 10 kV
• Termination: Front accessible separate high and low voltage terminals

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Specifications

• Part Number: SG3A0300KY
• 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 : 430Y/248, 416Y/240, 400Y/231, 380Y/219
• 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, Mounting Pads, Mounting Pads, 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 : 803423128005
• Weight : 2150
• Certification : CSA, UL

Documentation and Resources

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