Technical Specifications

Transformation ratio

  • From 250/5A to 2000/5A

Nominal Power

  • Up to 30VA

Accuracy Class

  • Class 1.0 or Classe 0.5 depending on the size

Terminal

  • Screw-covered terminals

Box

  • Polycarbonate. Self-extinguishing

Mounting

  • On cable or bar

Operating ambient temperature

  • -25 C ~ +85 C

Primary conductor

  • 80 x 80 mm

Round conductor

  • Diameter 80 mm

Number of inputs

  • 1 input

Short-time thermal current

  • Ith = 60 kA

Continuous thermal current

  • Id=1 * In

Nominal frequency

  • 50Hz … 60Hz

Overvoltage current limiting factor

  • FS 5

Test voltage

  • 3kV for 1min

System Max Voltage

  • 0.72kV

Applicable Standards

  • IEC 60044-1

  • IEC 61869-2

  • VDE 0414-1

  • DIN57414

  • BS3938

  • BS7626

  • EN 61869-2

Diagrams and Dimensions

Reference Tables

Opening
(mm)		SeriesRatio (A)Accuracy ClassPower (VA)
80 x 80CTK88-400/5400/5A12.5
CTK88-500/5500/5A12.5
CTK88-600/5600/5A12.5
CTK88-800/5800/5A110
CTK88-1000/51000/5A110
CTK88-1200/51200/5A110
CTK88-1250/51250/5A110
CTK88-1600/51600/5A0.510
CTK88-2000/52000/5A0.510