SK3A1000KK3K - Hammond Power Solutions 3-Phase 1000 kVA Transformer 480D-480Y/277V Sentinel K Series 60Hz 150C NEMA 3R

SK3A1000KK3K

SK3A1000KK3K is a 3-phase, 1000 kVA general purpose transformer from Hammond Power Solutions' Sentinel K Series designed for reliable power distribution.This transformer features a 480V Delta primary and 480Y/277V secondary voltage configuration, operating at 60 Hz frequency with a 150°C temperature rise rating. It is copper wound and enclosed in a NEMA 3R rated ventilated enclosure suitable for wall, floor, or ceiling mounting. The unit meets UL and CSA certifications and is designed for heavy-duty industrial and commercial applications requiring efficient energy distribution.

Key Specifications
• Power Rating: 1000 kVA
• Phase: 3-Phase
• Primary Voltage: 480V Delta
• Secondary Voltage: 480Y/277V
• Frequency: 60 Hz
• Temperature Rise: 150°C
• Enclosure: NEMA 3R ventilated
• Mounting Type: Wall, Floor, Ceiling
• Winding Material: Copper
• Certifications: UL Listed, CSA Certified
• Series: Sentinel K
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Specifications

• Part Number: SK3A1000KK3K
• 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 : 480Y/277
• Secondary Connection : Wye-N
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 1358.31
• 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 : 67 dBA (NEMA ST-20)
• Impedance (Std) : 4% - 7.5%
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure Dimensions : 72in/1829mm(H), 54in/1372mm(W), 44in/1118mm(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 : 803423130718
• 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)