Meets DOE-2016 and NRCan-2019 standards for energy efficiency Cores of high quality electrical steel NEMA 3R rated enclosures standard Heat-cured ASA-61 gray powder coat finish 60 Hz operation Aluminum windings Primary taps on most units 150°C temperature rise 220°C insulation class standard Large connection compartment for ease of wiring and installation Quiet operation for installation flexibility Seismic certification for all units through 333 kVA
| Make | Jefferson Electric |
|---|---|
| Manufacturer | Jefferson Electric |
| Model code | 421-5305-000 |
| Type | Ventilated transformer |
| Unit ratings or power ratings | 250 kVA |
| Primary Voltage | 240 x 480V |
| Secondary Voltage | 120/240V |
| Frequency range | 60 |
| No. of Phases | Single |
| Cooling type | Dry-type |
| Operating Temperature: | 150 °C |
| Standards/Approvals | NEMA, ANSI, UL and CSA |
| Winding material | Aluminium |
| Installation | Indoor / Outdoor |
| Insulation class/temperature | 220ºC |
| Weight/Mass | 1690 Kg |
| Additional info |
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