SK3A0225KB3K - Hammond Power Solutions 225 kVA 3-Phase 480D-208Y/120V Transformer Sentinel K Series

SK3A0225KB3K

SK3A0225KB3K is a 225 kVA 3-phase general purpose distribution transformer from Hammond Power Solutions Sentinel K Series.

This transformer is rated for 600 volts and below, designed for powering appliances, lighting, heating, motorized machines, and power loads. It features a 480V delta primary and 208Y/120V secondary voltage configuration, copper windings, 60 Hz frequency, and a 150°C temperature rise. The enclosure is a heavy-duty ventilated Type 3R suitable for indoor or outdoor use with ANSI 61 grey finish. It complies with UL and CSA certifications and is optimized for energy efficiency and durability.

Key Specifications
• Power Rating: 225 kVA
• Phase: 3-Phase
• Primary Voltage: 480V Delta
• Secondary Voltage: 208Y/120V
• Frequency: 60 Hz
• Winding Material: Copper
• Temperature Rise: 150°C
• Enclosure Type: Type 3R ventilated
• Series: Sentinel K
• Certifications: UL Listed, CSA Certified

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Specifications

• Part Number: SK3A0225KB3K
• 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 : 208Y/120
• Secondary Connection : Wye-N
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 271.403
• Efficiency Regulation : DOE 2016 (US), NRCAN 2019 (Canada), NMX 2021 (Mexico)
• Seismic Compliance : IBC 2018 (Sds=2.0, z/h=1, lp=1.5)
• Sound Level : 58 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) : DH4-N3R
• Enclosure Dimensions : 44.5in/1131mm(H), 31.5in/801mm(W), 29.5in/750mm(D)
• Electrostatic Shield : Single
• Nameplate : Standard
• Standard kVA : 225
• Vector Configuration : Dyn1 (-30°)
• Seismic Standard Value : IBC 2018
• OSHPD : No
• Seismic IP : lp=1.5
• Seismic ZH : z/h=1
• Seismic SDS Value : Sds=2.0
• Enclosure IR Window : No

Product Data

• UPC : 803423130305
• 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)