SK3A0300PK9S - Hammond Power Solutions 300 kVA 3-Phase 600V K-Factor Distribution Transformer NEMA 3R

SK3A0300PK9S

SK3A0300PK9S is a 300 kVA, 3-phase general purpose K-factor distribution transformer from Hammond Power Solutions designed for energy efficient power distribution.This transformer is rated for 600 volts and below, suitable for supplying appliances, lighting, heating, motorized machines, and power loads. It features a NEMA 3R enclosure for indoor/outdoor use, lug/pad connections, and is floor mounted. The unit operates at 60 Hz frequency with a 150°C temperature rise and 220°C insulation class. It is designed to meet North American efficiency standards and includes electrostatic shielding with aluminum windings.

Key Specifications
• Power Rating: 300 kVA
• Phase: 3-Phase
• Voltage Rating: 600V and below
• Frequency: 60 Hz
• Enclosure Type: NEMA 3R
• Mounting Type: Floor Mount
• Winding Material: Aluminum with Electrostatic Shield
• Temperature Rise: 150°C
• Insulation Class: 220°C
• K-Factor Rated for non-linear loads
• Connection Type: Lug/Pad
• Efficiency: Approximately 99.02%
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Specifications

• Part Number: SK3A0300PK9S
• Manufacturer : Hammond Power Solutions
• Brand : Hammond Power Solutions
• Category : Transformer
• Phase : 3
• Enclosure Grade : Standard
• Duty : General Duty
• Frequency : 60Hz
• Primary Voltage : 600D
• Primary Connection : Delta
• Secondary Voltage : 480Y/277
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 355.598
• 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 : 803423130060
• 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)