Current Transformers
DK125 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 DK125 Series is a vertical-design toroidal current transformer developed for current measurement in low-voltage busbar systems. Its elongated vertical window provides increased installation space for vertically arranged or multiple busbars, making it particularly suitable for main distribution panels and industrial switchboards where conventional CT dimensions may not fit the busbar configuration.
Designed to convert high primary currents into standardized current values suitable for electrical measuring, metering and monitoring devices in low-voltage installations.
Key features
- Vertical rectangular-window current transformer
- Primary current range: 600–4000 A
- Primary conductor opening: 125 × 39 mm
- Busbar mount type
- Suitable for large busbar arrangements
- Vertical construction for specific busbar configurations
- Sealable terminal cover
Specifications
Electrical characteristics
| Rated Power | Up to 40 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 | Busbar Mount Type |
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 | 125 × 39 mm |
| Number of Inputs | 1 |
Current measurement circuit
| Primary Current Range | 600 A to 4000 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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