SK3A0750PK4S - Hammond Power Solutions Sentinel K 750kVA 3-Phase 600V Delta 480Y/277V Transformer

SK3A0750PK4S

SK3A0750PK4S is a Hammond Power Solutions Sentinel K energy efficient k-factor distribution transformer rated for 600 volts and below, designed for three-phase applications with non-linear loads. This 750kVA transformer features a Delta primary voltage configuration at 600V and Wye secondary output at 480Y/277V, operating at 60 Hz with aluminum wound construction for reliable performance in demanding electrical distribution systems. The unit is DOE 2016 and NRCan 2019 compliant, meeting North American efficiency standards while providing enhanced protection for sensitive equipment. Key Specifications

• Capacity: 750 kVA
• Phase: Three Phase
• Primary Voltage: 600V Delta
• Secondary Voltage: 480Y/277V
• Frequency: 60 Hz
• Winding Material: Aluminum
• Temperature Rise: 150 deg C
• Insulation Class: 220 deg C
• BIL Rating: 10 kV
• Enclosure Type: Type 3R
• Certifications: UL Listed, CSA Certified
• Dimensions: 72 in H x 54 in W x 46.5 in D
• Gross Weight: 4200 lbs

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Specifications

• Part Number: SK3A0750PK4S
• Manufacturer : Hammond Power Solutions
• Brand : Hammond Power Solutions
• Category : Transformer
• Phase : 3
• Enclosure Grade : Standard
• Duty : General Duty
• Frequency : 60Hz
• Primary Voltage : 600D
• Primary Connection : Delta
• Primary FCAN (NPL) : 2x2.5%
• Primary FCBN (NPL) : 4x2.5%
• Secondary Voltage : 480Y/277
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 835.165
• 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 : 64 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) : DH7-N3R
• Enclosure Dimensions : 72in/1829mm(H), 54in/1372mm(W), 44in/1118mm(D)
• Electrostatic Shield : Single
• Nameplate : Standard
• Standard kVA : 750
• 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 : 803423129200
• Weight : 4250
• Certification : CSA, UL

Documentation and Resources

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