Current Transformers
BK1C 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 BK1C Series is a compact current transformer designed with terminal connections for both primary and secondary circuits. Unlike conventional window-type current transformers, the primary conductor does not need to pass through the CT, allowing direct electrical connection through the terminals. This design provides a practical solution for current measurement in compact panels, equipment and applications where simplified wiring and space-efficient installation are required.
Designed to convert high primary currents into standardized current values suitable for electrical measuring, metering and monitoring devices in low-voltage installations.
Key features
- Closed-body current transformer
- Primary current range: 1–50 A
- Primary and secondary connections through top terminals
- No conductor window required
- On-plate mounting
- Compact terminal-connected construction
- Suitable for direct integration into electrical equipment
Specifications
Electrical characteristics
| Rated Power | Up to 5 VA |
|---|---|
| Accuracy Class | 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 | On plate |
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 |
|---|---|
| Number of Inputs | 1 |
Current measurement circuit
| Primary Current Range | 1 A to 50 A |
|---|---|
| Secondary Current | 5 A |
| Thermal Rated Short-Time Current | Ith = 60 × In |
| Thermal Rated Continuous Current | Id = 1.2 × 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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