CTK58 – Opening-type current transformer for Cable and Bar from 250 to 1600A
Current transformer with an opening core, closed by a screw-nut system. It is suitable for measuring current in single-phase cables up to 50 mm in diameter or bars with dimensions up to 80x50mm. The range covers a wide range of primary currents, from 250A to 1600A AC. They are available in precision classes from 0.5 to 3.0.
Description
Technical Specifications
Transformation ratio
Nominal Power
Accuracy Class
Terminal
Box
Mounting
Operating ambient temperature
Primary conductor
Round conductor
Number of inputs
Short-time thermal current
Continuous thermal current
Nominal frequency
Overvoltage current limiting factor
Test voltage
System Max Voltage
Applicable Standards
Diagrams and Dimensions
Reference Tables
| Opening (mm) | Series | Ratio (A) | Accuracy Class | Power (VA) |
|---|---|---|---|---|
| 50 x 80 | CTK58-250/5 | 250/5A | 3 | 2.5 |
| CTK58-300/5 | 300/5A | 3 | 2.5 | |
| CTK58-400/5 | 400/5A | 3 | 2.5 | |
| CTK58-600/5 | 600/5A | 1 | 5 | |
| CTK58-800/5 | 800/5A | 1 | 5 | |
| CTK58-1000/5 | 1000/5A | 1 | 5 | |
| CTK58-1250/5 | 1250/5A | 1 | 5 | |
| CTK58-1600/5 | 1600/5A | 0.5 | 10 |
Technical Specifications
Transformation ratio
Nominal Power
Accuracy Class
Terminal
Box
Mounting
Operating ambient temperature
Primary conductor
Round conductor
Number of inputs
Short-time thermal current
Continuous thermal current
Nominal frequency
Overvoltage current limiting factor
Test voltage
System Max Voltage
Applicable Standards
Diagrams and Dimensions
Reference Tables
| Opening (mm) | Series | Ratio (A) | Accuracy Class | Power (VA) |
|---|---|---|---|---|
| 50 x 80 | CTK58-250/5 | 250/5A | 3 | 2.5 |
| CTK58-300/5 | 300/5A | 3 | 2.5 | |
| CTK58-400/5 | 400/5A | 3 | 2.5 | |
| CTK58-600/5 | 600/5A | 1 | 5 | |
| CTK58-800/5 | 800/5A | 1 | 5 | |
| CTK58-1000/5 | 1000/5A | 1 | 5 | |
| CTK58-1250/5 | 1250/5A | 1 | 5 | |
| CTK58-1600/5 | 1600/5A | 0.5 | 10 |
