
Product Series : Milliampere level Split Core Leakage Current Sensor
For online detection of AC leakage current, AC current, phase, energy, power, power factor, and harmonics.
Current range: 0.001mA to 20A/30A/60A
Accuracy: 0.5
Transformation ratio: 800:1
Operating frequency: 10Hz to 100kHz
Excellent anti-interference performance
Weak current detection
RoHS compliant
CE compliant
Connection 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 measured circuit, making installation quick, safe, and reliable, making it particularly suitable for online installation.
2. Utilizing a Permalloy core and shielding technology, it offers stable performance, high precision, and strong anti-interference capabilities, making it suitable for complex interference environments.
3. It can simultaneously clamp both the live and neutral wires to measure leakage current in cables and electrical equipment.
4. The transformer's measuring range, turns ratio, and output interface can be customized to meet customer requirements.
5. Safety rating: CAT III 600V.
6. Operating temperature: -15°C to 50°C




Technical Parameters
Product Model | Product Image | Measurement Parameters | Reference Load | Jaw Size | External Dimensions | Weight |
ETCR EM010K | ![]() | Range:0.001mA~20A Accuracy:0.5 Phase error:≤2° Transformation ratio:800:1 Operating frequency:10Hz~100kHz | 0~200mA≤300Ω 0~2A≤30Ω 0~20A≤3Ω | Ф10mm | 53mm×42mm×28mm | 65g |
ETCR EM025K | ![]() | Range:0.001mA~30A Accuracy:0.5 Phase error:≤2° Transformation ratio:800:1 Operating frequency:10Hz~100kHz | 0~300mA≤300Ω 0~3A≤30Ω 0~30A≤3Ω | Ф25mm | 78mm×82mm×31mm | 120g |
ETCR EM040K | ![]() | Range:0.001mA~60A Accuracy:0.5 Phase error:≤2° Transformation ratio:800:1 Operating frequency:10Hz~100kHz | 0~600mA≤300Ω 0~6A≤30Ω 0~60A≤3Ω | Ф40mm | 95mm×98mm×31mm | 160g |
ETCR EM080K | ![]() | Range:0.001mA~60A Accuracy:0.5 Phase error:≤2° Transformation ratio:800:1 Operating frequency:10Hz~100kHz | 0~600mA≤300Ω 0~6A≤30Ω 0~60A≤3Ω | Ф80mm | 135mm×152mm×40mm | 490g |
Model Comparison
Product Video