
Product Series : Microampere Level Split Core Leakage Current Sensor
For online detection of AC leakage current, AC current, phase, energy, power, power factor, and harmonics.
Current range: 0.000mA to 20A, 30A, and 60A.
Accuracy: 0.5 class.
Transformation ratio: 800:1.
Operating frequency: 10Hz to 100kHz.
RoHS compliant.
CE compliant.
Excellent anti-interference performance.
Weak current detection.
Terminals: S1 and S2 coil tap terminals, GND shield terminal.
Customization accepted.
Product Introduction
1. The retractable structure eliminates the need for power outages or disconnecting the circuit under test, making installation quick, safe, and reliable, making it particularly suitable for online installation.
2. The use of a Permalloy core and shielding technology ensures high test accuracy and strong anti-interference capabilities, capable of detecting currents as low as 1uA, making it suitable for complex interference environments.
3. The potting process ensures more stable performance and excellent linearity.
4. The live and neutral wires can be clamped simultaneously to measure leakage current in cables and electrical equipment.
5. The output signal can be either current or voltage.
6. The transformer's range, turns ratio, and output interface can be customized according to customer requirements.
7. Safety rating: CAT III 600V.
8. Operating temperature: -15°C to 50°C




Technical Parameters
Product Model | Product Image | Measurement Parameters | Reference Load | Jaw Size | External Dimensions | Weight |
ETCR EM015KM | ![]() | Range:0.001mA~20A Accuracy:0.5 Phase error:≤2° Transformation ratio:1000:1 Operating frequency:10Hz~100kHz | 0~200mA≤300Ω 0~2A≤30Ω 0~20A≤3Ω | Ф15mm | 91.5mm×67.5mm×25mm | about 140g |
ETCR EM030KM | ![]() | Range:0.001mA~30A Accuracy:0.5 Phase error:≤2° Transformation ratio:1000:1 Operating frequency:10Hz~100kHz | 0~300mA≤300Ω 0~3A≤30Ω 0~30A≤3Ω | Ф30mm | 122.4mm×92.4mm×25mm | about 280g |
ETCR EM050KM | ![]() | Range:0.001mA~60A Accuracy:0.5 Phase error:≤2° Transformation ratio:1000:1 Operating frequency:10Hz~100kHz | 0~600mA≤300Ω 0~6A≤30Ω 0~60A≤3Ω | Ф50mm | 142.4mm×115.3mm×25mm | about 360g |
ETCR EM065KM | ![]() | Range:0.001mA~60A Accuracy:0.5 Phase error:≤2° Transformation ratio:1000:1 Operating frequency:10Hz~100kHz | 0~600mA≤300Ω 0~6A≤30Ω 0~60A≤3Ω | 65mm×30mm | 137.1mm×82.9mm×40mm | about 420g |
Model Comparison
Product Video