WBI412F21 (Low Power Consumption Leakage Current Sensor) adopts the principle of electromagnetic isolation to measure AC leakage current in the power grid in real time and converts it into an average voltage (Uz) output using average conversion technology. It features high accuracy, high isolation, low drift, low power consumption, a wide operating temperature range, and other excellent characteristics. The sensor is suitable for single-phase or three-phase AC grounded grids, monitoring the phase-to-ground leakage current of phase lines, as well as monitoring the grid differential current, i.e., zero-sequence current, in single-phase or three-phase AC ungrounded grids.
Company Introduction
Mianyang Weibo Electronic Co., Ltd. is a high-tech enterprise established in 2000. The company is engaged in R&D, manufacturing, and supply of current sensors/transducers and specialized computer boards.
The company is located in Mianyang City, Sichuan Province, China. Over the years, it has focused on building its R&D capabilities and independent innovation capacity.
The company's product portfolio covers a wide range of current sensors and transducers widely used in industrial automation, power electronics, rail transit, and new energy designed for demanding measurement and control scenarios.
Guided by a customer-oriented philosophy and a commitment to reliability and precision, Mianyang Weibo Electronic Co., Ltd. is determined to reach new heights in measurement and control technology, delivering dependable products and solutions to customers at home and abroad.
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| Item | Specification |
|---|---|
| Rated input current AC | 50A, 100A, 200A, 300A, 400A, 500A AC |
| Output signals | 0-5(10)V DC |
| Accuracy | 0.2% |
| Input Impedance (R) |
measuring current＜100mA, input impedance 200Ω; measuring current ≥100mA, input impedance approximate zero |
| Responding Time | 300ms |
| Linear measuring range | 0 - 1.2 times of rated input current |
| Over Load Capacity | 30 times of rated input current, 5s |
| Frequency range | 25Hz~5kHz |
| Output impedance | 5mA |
| Static current | 5mA |
| Power supply | +12V/+15V/+24V DC |
| Isolation Voltage (Input/Output) | ≥2500Vdc, for 1 minute |
| Output Ripple | ＜6mV |
| Thermal drift | 350ppm/°C |
| Ambient Temperature | -10℃~+50℃ |
| Mounting | DIN Rail 35mm Mounting or screw mounting |
| Material of shell | ABS (According to UL94V-0) |
| Protection of shell | IP20 |
| Shell type | with aperture Φ35mm |
| MTBF | >50000h |
