SK3A0112KB4S - Hammond Power Solutions 112.5kVA 3-Phase 480D-208Y/120V Dry Type Transformer NEMA 3R

SK3A0112KB4S

SK3A0112KB4S is a 112.5kVA, 3-phase dry type transformer from Hammond Power Solutions designed for industrial power distribution.This transformer features a 480V Delta primary voltage and a 208Y/120V secondary voltage configuration. It is built with aluminum windings and operates at 60Hz frequency with a 150C temperature rise. The unit is rated for NEMA 3R enclosure, suitable for outdoor use with protection against rain and snow. It is part of the Sentinel-K K4 series, optimized for energy efficiency and K-factor applications.

Key Specifications
• Power Rating: 112.5kVA
• Phase: 3-Phase
• Primary Voltage: 480V Delta
• Secondary Voltage: 208Y/120V
• Frequency: 60Hz
• Winding Material: Aluminum
• Temperature Rise: 150C
• Enclosure Rating: NEMA 3R
• Type: Dry Type Transformer
• Series: Sentinel-K K4
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Specifications

• Part Number: SK3A0112KB4S
• 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
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 120.117
• 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) : Mounting Pads
• 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 : 112.5
• 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 : 803423126537
• Weight : 710
• Certification : CSA, UL



Documentation and Resources

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