Current Transformers
BK 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 BK Series is a busbar-type current transformer designed for current measurement in low-voltage electrical systems. Unlike conventional window-type current transformers, the BK Series features an integrated primary busbar connection, providing a compact and practical solution for direct integration into electrical panels and distribution systems. Different current ratios, accuracy classes and rated burden (VA) options are available according to measurement requirements.
Designed to convert high primary currents into standardized current values suitable for electrical measuring, metering and monitoring devices in low-voltage installations.
Key features
- Built-in bar type current transformer
- Primary current range: 5–200 A
- Integrated primary busbar: 25 × 3 mm
- No external conductor window required
- Plate-mounted design
- Compact construction for panel integration
- Sealable terminal cover
Specifications
Electrical characteristics
| Rated Power | Up to 15 VA |
|---|---|
| Accuracy Class | Class 0.5S, Class 0.5, Class 1.0 |
| 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 | Plate Mounted, KK0001 |
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 | 25 × 3 built-in busbar |
| Number of Inputs | 1 |
Current measurement circuit
| Primary Current Range | 5 A to 200 A |
|---|---|
| Secondary Current | 5 A |
| Thermal Rated Short-Time Current | Ith = 60 × In |
| 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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