SG3A0300BB0C - Hammond Power Solutions 300KVA 3-Phase 208D-208Y/120V Sentinel G Distribution Transformer NEMA 3R

SG3A0300BB0C

SG3A0300BB0C is a Hammond Power Solutions Sentinel G three-phase distribution transformer rated for 300 kVA with 208 delta primary and 208Y/120 volt secondary configuration, designed for general-purpose low-voltage power distribution applications up to 600 volts. This energy-efficient transformer features copper windings, 60 Hz frequency operation, and a 150 degree Celsius temperature rise rating, making it suitable for reliable performance in commercial and industrial environments. The unit is housed in a NEMA 3R enclosure with factory-installed grounding lugs and front-accessible separate high and low voltage terminals equipped with connectors suitable for both aluminum and copper cable installation.

• Capacity: 300 kVA
• Phase: 3-Phase
• Primary Voltage: 208 Delta
• Secondary Voltage: 208Y/120 Volts
• Frequency: 60 Hz
• Winding Material: Copper
• Temperature Rise: 150 Degrees Celsius
• Enclosure Type: NEMA 3R
• Mounting: Floor Mount with Lug/Pad Connection
• Termination: Front Accessible Separate High and Low Voltage Terminals
• Meets DOE 10 CFR Part 431 North American Efficiency Standards

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Specifications

• Part Number: SG3A0300BB0C
• Manufacturer : Hammond Power Solutions
• Brand : Hammond Power Solutions
• Category : Transformer
• Phase : 3
• Enclosure Grade : Standard
• Duty : General Duty
• Frequency : 60Hz
• Primary Voltage : 208D
• Primary Connection : Delta
• Secondary Voltage : 208Y/120
• 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) : 3.5% - 7%
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• 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
• Primary FCAN (Std) : 1x5%
• Primary Termination (Std) : Mounting Pads

Product Data

• UPC : 803423127329
• Weight : 1600
• Certification : CSA, UL

Documentation and Resources

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