Hammond Power Solutions MG3A1250RKSAHC0 - Transformer 1250 kVA 2400D-480Y/277V

MG3A1250RKSAHC0

Hammond Power Solutions MG3A1250RKSAHC0 is a three-phase general duty transformer designed for industrial power distribution applications. This unit features a 2400V delta primary connection and 480Y/277V secondary output with 1250 kVA capacity, constructed with aluminum windings rated for 150°C temperature rise and 220°C insulation class. The transformer is housed in a Type 3R/IP24 enclosure with ANSI 61 grey finish, measuring 86 inches high by 78 inches wide by 52 inches deep, and operates at 65 dBA sound levels per IEEE C57.12.01 standards. It complies with IBC 2018 seismic requirements (Sds=2.0, z/h=0, lp=1.5) and meets efficiency regulations including DOE 2016, NRCAN 2019, and NMX 2021. Typical applications include industrial plants, commercial facilities, and institutional power systems requiring reliable three-phase power conversion. Key Features & Specifications

• Type: Three-Phase General Duty Transformer
• Primary Voltage: 2400V Delta
• Secondary Voltage: 480Y/277V Wye-N
• Capacity: 1250 kVA
• Frequency: 60 Hz
• Impedance: 4% - 7.5%
• Temperature Rise: 150°C
• Insulation Class: 220°C
• Enclosure: Type 3R / IP24
• Sound Level: 65 dBA
• Vector Configuration: Dyn1 (-30°)
• Material: Aluminum Windings
• Dimensions: 86" H × 78" W × 52" D

Specifications

• Part Number: MG3A1250RKSAHC0
• Manufacturer : Hammond Power Solutions
• Brand : Hammond Power Solutions
• Category : Transformer
• Phase : 3
• Enclosure Grade : Standard
• Duty : General Duty
• Frequency : 60Hz
• Primary Voltage : 2400D
• Primary Connection : Delta
• Secondary Voltage : 480Y/277
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 1250
• 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 : 65 dBA (IEEE C57.12.01)
• Impedance (Std) : 4% - 7.5%
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure Dimensions : 86in/2185mm(H), 78in/1982mm(W), 52in/1321mm(D)
• Nameplate : Standard
• Standard kVA : 1250
• 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 : 803423133740
• 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)