SK3A1000KB4S - Hammond Power Solutions 1000 kVA 3-Phase Transformer 480D-480Y/277V 60Hz Type 3R

SK3A1000KB4S

SK3A1000KB4S is a 1000 kVA three-phase general purpose transformer from Hammond Power Solutions designed for low voltage distribution applications.This transformer features a 480 Volt Delta primary and 480Y/277 Volt secondary voltage configuration, operating at 60 Hz frequency. It is built with a Type 3R heavy-duty ventilated enclosure suitable for indoor or outdoor use, providing protection against rain and snow. The unit is designed for general purpose power distribution, lighting, heating, and motor loads with a temperature rise rating of 150°C. It complies with North American efficiency standards and is UL Listed and CSA Certified.

• Power Rating: 1000 kVA
• Phase: 3-Phase
• Primary Voltage: 480V Delta
• Secondary Voltage: 480Y/277V
• Frequency: 60 Hz
• Enclosure Type: Type 3R ventilated
• Temperature Rise: 150°C
• Application: General purpose distribution
• Certifications: UL Listed, CSA Certified
• Mounting Type: Floor mount

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Specifications

• Part Number: SK3A1000KB4S
• 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
• Secondary Voltage : 208Y/120
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 1122.5
• 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%
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure Dimensions : 82in/2083mm(H), 60in/1524mm(W), 47in/1194mm(D)
• Electrostatic Shield : Single
• Nameplate : Standard
• Standard kVA : 1000
• 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
• Primary FCAN (Std) : 2x2.5%
• Primary Termination (Std) : Mounting Pads

Product Data

• UPC : 80342312861
• Weight : 1600
• Certification : CSA, UL

Documentation and Resources

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