SK3A0075KK3S - Hammond Power Solutions 75 kVA 3-Phase K-Factor Transformer 480 Delta - 480Y/277V NEMA 3R Aluminum

SK3A0075KK3S

SK3A0075KK3S is a 75 kVA, 3-phase K-Factor transformer from Hammond Power Solutions, designed for demanding electrical environments with a 480 Delta primary and 480Y/277V secondary configuration. This unit features a robust NEMA 3R enclosure suitable for both indoor and outdoor installations, aluminum windings for efficient performance, and is engineered for use with non-linear loads. The transformer is part of the HPS Sentinel® K series, offering enhanced protection against harmonic distortion and optimized for applications with high harmonic content. It is rated for 60 Hz operation and features a 150°C temperature rise, making it ideal for commercial and industrial power distribution systems.

• Part Number: SK3A0075KK3S
• Manufacturer: Hammond Power Solutions
• Series: Sentinel® K
• Power Rating: 75 kVA
• Phase: 3-Phase
• Primary Voltage: 480 Delta V AC
• Secondary Voltage: 480Y/277 V AC
• Enclosure: NEMA 3R
• Winding Material: Aluminum
• Frequency: 60 Hz
• Temperature Rise: 150°C
• Mounting Type: Floor or Wall (optional)

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Specifications

• Part Number: SK3A0075KK3S
• 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 : 480Y/277
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 88.4237
• 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 : 53 dBA (NEMA ST-20)
• Impedance (Std) : 2.5% - 6.5%
• Secondary Termination (NPL) : Mechanical Lugs
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure PN (NPL) : DH3-N3R
• Enclosure Dimensions : 36in/915mm(H), 28.25in/718mm(W), 27in/686mm(D)
• Electrostatic Shield : Single
• Nameplate : Standard
• Standard kVA : 75
• 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 : 803423130534
• Weight : 565
• Certification : CSA, UL

Documentation and Resources

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