SK3A0075KB4K - Hammond Power Solutions 3-Phase 75 kVA Transformer 480V Delta to 208Y/120V 60Hz 150C NEMA 3R

SK3A0075KB4K

SK3A0075KB4K is a 3-phase, 75 kVA general purpose distribution transformer by Hammond Power Solutions designed for reliable power distribution.This transformer features a 480V Delta primary and 208Y/120V secondary voltage configuration, operating at 60 Hz frequency. It is built with copper windings and rated for a 150°C temperature rise. The enclosure is a NEMA 3R type, suitable for indoor or outdoor use, providing protection against rain and snow. The unit meets North American energy efficiency standards and is UL listed and CSA certified. It is ventilated and designed for use in powering appliances, lighting, heating, and motorized equipment.

• Phase: 3
• Power Rating: 75 kVA
• Primary Voltage: 480V Delta
• Secondary Voltage: 208Y/120V
• Frequency: 60 Hz
• Winding Material: Copper
• Temperature Rise: 150°C
• Enclosure Type: NEMA 3R
• UL Listed and CSA Certified
• Ventilated Design

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Specifications

• Part Number: SK3A0075KB4K
• 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 : 79.3725
• 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 : 50 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 : 803423126582
• Weight : 665
• Certification : CSA, UL

Documentation and Resources

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