Voltage Sensor
why choose us
One-stop Solution
Full-cycle integration, full-process management, core focus guaranteed.
Advanced Equipment
High Voltage High-Isolation Test Bench; Ultra-Compact Anti-Interference Signal Simulation System; Damped Oscillation Wave Simulation System; Automatic Calibration System
Competitive Price
We offer cost-competitive pricing with exceptional value. Our structured cost management ensures top-tier quality and significant market advantage while staying within your budget.
Accept ODM/OEM service
We provide different kinds of custom service, along with ODM/OEM service for our clients.
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![DC 0-1000V Output 4-20mA Voltage Transducer]()
WBV334U01-S converts DC input voltage into a load independent output signal DC (0)4-20mA. It has adopted modulation-demodulation isolation principle and average measurement method for real time...view more -
![AC Voltage Transducer 0-10V Output]()
WBV412H29 uses a special isolation module to measure the AC voltage in the grid and circuit in real time and convert it to 0~5V, 0~10V or 1V~5V DC voltage (Uz) output.view more -
![10mV-1000V Input Voltage Sensor Low Power(1000V Max)]()
WBV342U01-S converts pure DC input voltage into a load independent output signal DC voltage 0-5V or 0-10V. It has adopted modulation-demodulation isolation principle and average measurement method...view more -
![Voltage Sensor for Welding Machine 4 to 20mA Output]()
WBV344U01-S converts DC input pure voltage into a load independent output signal DC 0-20mA or 4-20mA. It has adopted modulation-demodulation isolation principle and average measurement method for...view more -
![Analog Signal Conditioners Standard Signal Converters]()
WBV344U01-S converts DC input pure voltage into a load independent output signal DC 0-20mA or 4-20mA. It has adopted modulation-demodulation isolation principle and average measurement method for...view more -
![CE Certification 10V-500V Input Electrical Isolation Transducer]()
WBV412H29 uses a special isolation module to measure the AC current in the power grid and circuit in real time, and convert it into 0~5V, 0~10V or 1V~5V DC voltage (Uz) output.view more -
![75mV-500V Input DC Voltage Transducer(Max 500V)]()
WBV122S01 adopts linear photoelectric isolation principle and average value conversion technology to measure the AC and DC currents in the power grid or circuit in real time and convert it into...view more -
![DC 10mV-1000V Input Voltage Converter]()
WBV342U01-S converts pure DC input voltage into a load independent output signal DC voltage 0-5V or 0~10V. It has adopted modulation-demodulation isolation principle and average measurement method...view more -
![0-20mA Output AC Voltage Transducer]()
WBV414M05 adopts the special isolation module for real-time measurement of AC voltage from power grid or circuit.view more -
![1000V 4-20mA Voltage Transducer]()
WBV334U01-S converts DC input voltage into a load independent output signal DC (0)4-20mA. It has adopted modulation-demodulation isolation principle and average measurement method for real time...view more -
![Arduino Voltage Sensor 120V]()
WBV412H29 uses a special isolation module to measure the AC voltage in the power grid and circuit in real time, and convert it into DC current (Iz) output of 4mA~20mA or 0mA~20mA standard.view more -
![0-1000V Input Voltage Sensor Low Power]()
WBV342U01-S converts pure DC input voltage into a load independent output signal DC voltage 0-5V or 0-10V. It has adopted modulation-demodulation isolation principle and average measurement method...view more
Voltage sensor features and types
A voltage sensor is a sensor that senses the measured voltage and converts it into an available output signal. In various automatic detection and control systems, it is often necessary to perform tracking acquisition on high-speed alternating AC and DC voltage signals, and perform spectrum analysis on relatively complex voltage wave forms.
Primarily classified as resistive (voltage divider) or capacitive voltage sensors, though they can also act as transducers, isolating and converting high-voltage inputs into low-power outputs.
Material of AC/DC Voltage Sensors
| Material Category | AC Voltage Sensor | DC Voltage Sensor |
| Magnetic Core Material | Ferrite , nanocrystalline alloy | Permalloy, nanocrystalline alloy (steady state/ripple measurement) |
| High-Voltage Isolation Material | Epoxy resin | Ceramic |
| Housing Material | Flame-retardant engineering plastic (PBT/ABS) | Aluminum alloy |
| Voltage Divider & Conductive Material | Copper foil + precision resistor | Thick copper busbar + low temperature drift resistor |
| Circuit Board Material | Standard FR-4 epoxy glass cloth laminate (-20~85℃) | High temperature resistant FR-4 (-40~125℃, anti-drift) |
Voltage Sensor Manufacturing Process
Design and Simulation
1
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Assembly and Packaging
2
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Triple Protection (Moisture, Corrosion, and Shock Resistance)
3
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Calibration and Labeling
4
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Testing and Aging
5
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Compliance and Quality Inspection
6
How to maintain Voltage Sensor
Visual Inspections: Monthly checks for cracks in housing, loose wiring, or debris accumulation.
Cleaning: Use a soft, dry cloth or gentle cleaner to remove dirt from the sensing element. Never scratch the sensing surfaces.
Calibration: Perform annual calibration to ensure accuracy. This includes updating the sensor’s slope and offset values in software to match actual, measured current levels.
Grounding & Shielding: Ensure the sensor cable shield is properly grounded to minimize electromagnetic interference (EMI).
Thermal Management: Avoid rapid temperature changes (thermal shock). Ensure adequate cooling or heat sinking, particularly for high-current applications, to prevent solder joint damage.
Mounting: Ensure the sensor is mounted securely and oriented correctly (e.g., perpendicular to the current flow) to prevent side-loading and inaccurate, “noisy” readings.
Frequently Asked Questions
Question 1: What is the measurement range and accuracy? Can it meet our actual working conditions?
Answer:Our standard AC/DC current sensors typically cover ranges from 10mA up to 2000A. For example, a common model like the WBI414 series measures AC/DC from 0 to 500A with a ±0.5% FS accuracy at 25°C. Overload capability is usually 1.2 to 2 times the nominal range for short durations. Accuracy is influenced by temperature drift (typically <0.02%/°C) and frequency response (DC to 20kHz for most Hall-effect sensors). To confirm suitability, we need details of your actual waveform, load type (sinusoidal, PWM, etc.), ambient temperature range, and required isolation voltage.
Question 2: Is the installation method compatible with our system?
Answer:We offer split-core (open/close type) and solid-core models. Split-core sensors allow hot installation without breaking the conductor, suitable for retrofitting; accuracy is typically ±1%. Solid-core (through-hole) sensors provide higher accuracy, typically ±0.5%. Mounting options include DIN rail, panel screw, or direct PCB mounting. Dimensions and drawings are available in the datasheet (e.g., standard 37.5mm width for DIN rail). Please confirm your panel cutout size, conductor diameter, and available space for a compatibility check.
Question 3: How does the output signal connect to our PLC/data acquisition device?
Answer:Standard output options include:Analog: 0-5V, 0-10V, or 4-20mA outputs. Ensure your PLC input impedance matches (e.g., ≥10kΩ for voltage output, ≤500Ω burden for current output).
Digital: RS485 (Modbus RTU) or CAN interfaces, configurable via software.
We provide wiring diagrams and PC configuration tools free of charge. For analog outputs, a 3-wire connection (power, ground, signal) is standard. For digital outputs, typical daisy-chain or star topology is supported.
Question 4: Can it operate stably in harsh environments?
Answer:Standard industrial-grade sensors operate within -25°C to +85°C, with an extended range of -40°C to +105°C available. Temperature drift is typically <±0.05%/°C for high-precision models. Electromagnetic compatibility meets IEC/EN 61000-6-2 (immunity) and 61000-6-4 (emission) standards. Sensors are designed for use in industrial motor drives, renewable energy systems, and railway applications with strong EMI. For extreme conditions, we recommend conformal coating or IP67-rated encapsulated versions.
Question 5: What certifications, lifespan, and warranty do you offer?
Answer:The typical MTBF (Mean Time Between Failures) is >500,000 hours (calculated per MIL-HDBK-217F), with an operational lifespan of >10 years under rated conditions. We provide a standard 12-month warranty from shipment, covering manufacturing defects. Extended warranty up to 36 months is available for bulk contracts.
Question 6: Is the price competitive? Can you customize for bulk orders?
Answer:Our pricing is typically 20-40% lower than major EU/US brands (e.g., LEM, Allegro) while maintaining comparable performance, offering strong import substitution value. For bulk orders (>500 pcs), we provide tiered pricing discounts and support the following customizations:
Measurement Range: Custom scaling (e.g., 0-750A).
Output: Modified voltage/current levels or custom digital protocols.
Mechanical: Modified housing, cable length, connector type, or branding.
Lead Time: Samples in 1-2 weeks, mass production in 4-8 weeks after confirmation.
We're professional voltage sensor suppliers in China, specialized in providing high quality products. We warmly welcome you to buy or wholesale bulk voltage sensor from our factory. For price consultation, contact us.
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