Current Transformers
TK120 Series Toroidal Current Transformer
Primary Current (A)
Secondary Current (A)
Accuracy Class
Burden (VA)
Choose primary current, secondary current, accuracy class, burden to see the product code.
Product overview
The VTEKE TK120 Series is a large-window toroidal current transformer developed for high-current measurement applications requiring increased conductor and busbar capacity. It is particularly suitable for main low-voltage distribution systems, industrial switchboards and large electrical installations.
Designed to convert high primary currents into standardized current values suitable for electrical measuring, metering and monitoring devices in low-voltage installations.
Key features
- Extra-large window current transformer
- Primary current range: 2000–6300 A
- Busbar opening: 70 × 120 mm
- Round conductor: Ø71 mm
- Designed for high-current distribution systems
- Various mounting options
- Sealable terminal cover
Specifications
Electrical characteristics
| Rated Power | Up to 60 VA |
|---|---|
| Accuracy Class | Class 1, 0.5, 0.5S, 0.2, 0.2S, 0.1 |
| Test Voltage | 3 kV for 1 min |
| Surge Current Limitation Factor | FS 5 |
Mechanical characteristics
| Terminal | Integral terminal cover, high cross-section brass terminal for extra safety |
|---|---|
| Case | Non-flammable, self-extinguishing ABS/PC |
| Mounting | Various mounting options |
Environmental characteristics
| Ambient Temperature (Operation) | -25 °C to +85 °C |
|---|---|
| Protection Class / IP Rating | IP20 |
Specific technical characteristics of current sensors
| Max. System Voltage | 0.72 kV |
|---|---|
| Primary Conductor | 70 × 120 mm |
| Round Conductor | Ø 71 mm |
| Number of Inputs | 1 |
Current measurement circuit
| Primary Current Range | 2000 A to 6300 A |
|---|---|
| Secondary Current | 5 A |
| Thermal Rated Short-Time Current | Ith = 60 kA |
| Thermal Rated Continuous Current | Id = 1 × In |
| Rated Frequency | 50/60 Hz |
Standards
| Standards | IEC 60044-1, IEC 61869-2, VDE 0414-1, DIN 57414, BS3938, BS7626, EN 61869-2 |
|---|
Technical documents
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