Jefferson Electric 421-5305-000 Single-Phase Ventilated Transformer

Technical Specification

Features:

Make: Jefferson Electric
Model code: 421-5305-000
Type: Ventilated transformer
Unit ratings or power ratings: 250 kVA
Primary Voltage: 240 x 480V

Additional info:

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

Contact manufacturer Contact manufacturer Datasheet Datasheet

Make	Jefferson Electric
Manufacturer	Jefferson Electric
Category	Transmission and Distribution>Transformers
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	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
Download PDF version Download PDF version