SK3A0300KK4K - Hammond Power Solutions 300kVA 3PH 480D-480Y/277V Sentinel K

SK3A0300KK4K

SK3A0300KK4K is a three-phase 300kVA general purpose distribution transformer from Hammond Power Solutions, part of the Sentinel K series, designed for low-voltage applications rated 600 volts and below. This D16 frame transformer features a primary voltage of 480 Delta and secondary voltage of 480Y/277V, making it suitable for industrial, commercial, and residential power distribution applications including appliances, lighting, heating, and motorized equipment. The unit operates at 60Hz with a 150 degree Celsius temperature rating and is housed in a NEMA 3R enclosure, which provides protection against rain and snow with enhanced baffling for horizontal blowing conditions.

• Part Number: SK3A0300KK4K
• Manufacturer: Hammond Power Solutions
• Series: Sentinel K
• Frame: D16
• Capacity: 300kVA
• Phase: 3 Phase
• Primary Voltage: 480 Delta
• Secondary Voltage: 480Y/277V
• Frequency: 60Hz
• Temperature Rating: 150 Degrees Celsius
• Enclosure Type: NEMA 3R

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Specifications

• Part Number: SK3A0300KK4K
• 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 : 325.883
• 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 : 55 dBA (NEMA ST-20)
• Impedance (Std) : 4% - 7.5%
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure Dimensions : 52in/1321mm(H), 37.5in/953mm(W), 34in/864mm(D)
• Electrostatic Shield : Single
• Nameplate : Standard
• Standard kVA : 300
• 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 : 803423129071
• Weight : 5.19
• Certification : CSA, UL

Documentation and Resources

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