TDK Split-Core Clamp-on AC Current Transformer

With the expanding market of energy management systems such as Industry 4.0, we have expanded our lineup of AC current sensors covering 30A to 600A to meet market demands for high-current measurement.These single-touch clamp-on sensors can be easily installed on existing electrical equipment. An internal open-circuit protection component is integrated to suppress high voltage generated when the core is opened.In addition, automated winding and soldering processes enable stable mass supply with consistent high quality.

Electrical Characteristics

Applicable Current [50/60Hz]: 0.1～30 ArmsNominal Transformation Ratio: 3000:1Output Current Accuracy: 10mA ±0.1mAPhase Difference: 3° ±1.5°Secondary Winding Resistance: 492 ΩOpen-Circuit Protection: 7.5V Clamp ElementWithstand Voltage (1 min): 2.2 kVACInsulation Resistance (DC 500V): Min. 100 MΩ

Application Scope

• Building & factory energy monitoring: Current collection for BEMS, FEMS, power distribution cabinets and junction boxes;

• Industrial control equipment: Input current monitoring for inverters, servo drives and high-power power supplies (including TDK-Lambda high-voltage power supplies);

• Smart home & energy storage: Current detection for household distribution boxes and PV energy storage inverters;

• Automated production lines: Equipment power consumption collection, overload alarm and electric energy metering;

• Supporting devices: Power monitoring meters, PLC sampling modules and energy management mainboards.