The GE ITI 456-480FF is an indoor voltage transformer designed for metering applications. It has a primary voltage of 480 V and a secondary voltage of 120 V, with a single-phase ratio of 480:120, operating at 60 Hz and rated for 10 kV BIL insulation.

Detailed Specifications & Description

• Type & Application

  • Indoor voltage transformer (VT) used for metering and monitoring electrical systems.
  • Commonly applied in low-voltage lighting and instrumentation transformer setups.

• Electrical Ratings

  • Primary Voltage: 480 V
  • Secondary Voltage: 120 V
  • Ratio: 480:120 (4:1 turns ratio)
  • Frequency: 60 Hz
  • Insulation Level: 10 kV BIL (Basic Impulse Level)

• Performance

  • Metering Class Accuracy: 0.3 M (suitable for precise metering applications)
  • Thermal Rating:
    • 150 VA at 30 °C ambient
    • 100 VA at 55 °C ambient

• Construction

  • Single-phase design
  • Brass screw terminals (No. 8-32 with lockwasher and flatwasher)
  • Approximate Weight: 15.5 lbs
  • Indoor mounting with protective cover

• Manufacturer

  • Produced by GE ITI (Instrument Transformer).