SK3A0225KB4S - Hammond Power Solutions 225kVA 3-Phase K-Factor 4 Transformer

SK3A0225KB4S

SK3A0225KB4S is a three-phase energy efficient k-factor distribution transformer rated for 600 volts and below, designed for applications with non-linear loads requiring harmonic mitigation.

This Hammond Power Solutions Sentinel K transformer features a k-factor rating of 4 and is compliant with DOE 2016 and NRCan 2019 efficiency standards. The unit is aluminum wound with a primary voltage of 480 delta and secondary voltage of 208Y/120, making it suitable for general purpose distribution applications including appliances, lighting, heating, and motorized machine loads. The transformer includes a heavy duty ventilated Type 3R enclosure with ANSI 61 grey finish and is equipped with front accessible separate high and low voltage terminals with connectors suitable for aluminum and copper cable installation.

• Capacity: 225 kVA
• Phase: Three Phase
• Primary Voltage: 480 Delta
• Secondary Voltage: 208Y/120
• K-Factor Rating: 4
• Winding Material: Aluminum
• Frequency: 60 Hz
• Insulation Class: 220 degrees C with 150 degrees C rise
• BIL Rating: 10 kV
• Enclosure Type: Type 3R ventilated
• UL Listed: File E112313
• CSA Certified: File LR3902

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Specifications

• Part Number: SK3A0225KB4S
• 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
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 240.234
• 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)
• 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=0
• Seismic SDS Value : Sds=2.0
• Enclosure IR Window : No

Product Data

• UPC : 803423128579
• Weight : 1500
• Certification : CSA, UL

Documentation and Resources

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