SK3A0300KB4S - Hammond Power Solutions 300KVA 480D-208Y/120V 3Ph K4 Sentinel

SK3A0300KB4S

SK3A0300KB4S is a three-phase energy-efficient K-factor distribution transformer manufactured by Hammond Power Solutions, designed for applications requiring harmonic mitigation in low-voltage power distribution systems rated 600 volts and below.Specifications: This Sentinel-K series transformer delivers 300 kVA capacity with a primary voltage of 480D and secondary voltage of 208Y/120V. The unit features aluminum windings, operates at 60 Hz frequency, and includes a 150 degree Celsius temperature rise rating with 220 degree Celsius insulation system. The transformer is housed in a heavy-duty ventilated NEMA 3R enclosure suitable for indoor and outdoor use with protection against rain and snow. Front-accessible separate high and low voltage terminals with connectors accommodate both aluminum and copper cable installations for flexible deployment.

• Part Number: SK3A0300KB4S
• Manufacturer: Hammond Power Solutions
• Power Rating: 300 kVA
• Phase: 3 Phase
• Primary Voltage: 480D
• Secondary Voltage: 208Y/120V
• Frequency: 60 Hz
• Winding Material: Aluminum
• Temperature Rise: 150 degree C
• Insulation System: 220 degree C
• Enclosure Type: NEMA 3R
• Series: Sentinel-K K4
• BIL Rating: 10 kV

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Specifications

• Part Number: SK3A0300KB4S
• 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 : 325.883
• 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) : 4% - 7.5%
• 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 : 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 : 803423128586
• Weight : 1850
• Certification : CSA, UL

Documentation and Resources

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