3-Phase AC Voltage Sensor, 10–500V, 0-5V/4-20mA Analog Output

The SUCH 3-phase voltage sensor is an industrial AC voltage transducer designed to measure three-phase AC voltage from 10–500V and convert it into proportional DC outputs such as 0–5V, 0–20mA, or 4–20mA for seamless integration with PLC, SCADA, and industrial control systems. Operating on DC 12V/24V power, it features full input/output/power isolation, 0.5% F.S. accuracy, DIN rail mounting, and IP20 protection for reliable performance in harsh, high-interference environments. It is widely used for power monitoring, control, and dispatching systems across petroleum, coal, metallurgy, and railway industries, ensuring stable real-time electrical system supervision.

Feature

• Wide Voltage Measuring Range: This 3-phase voltage sensor covers AC 10V to 500V, with selectable ranges of 0-10V, 0-50V, 0-100V, 0-250V, 0-300V, and 0-500V.
• Multiple Output Signals: Converts measured three-phase AC voltage into DC 0-5V, 0-20mA, or 4-20mA output, compatible with PLCs, data loggers, and SCADA systems.
• 0.5% F.S. Accuracy: Response time ≤300ms for real-time voltage measurement.
• Full Isolation Design: Input/output/power supply isolation (DC 2.5kV, 1min) protects connected equipment from voltage surges and electrical interference.
• DC 12V/24V Power Supply: Operates on DC 12V±10% or 24V±10%.
• Industrial Housing: Fire-retardant ABS housing, IP20 protection, DIN rail (NS35/7.5, NS35/15, EN50022) installation.
• MTBF >50,000 Hours: This 3-phase voltage sensor is rated for continuous industrial operation.

Dimension (Unit:mm)

Wiring

The SUCH 3-phase voltage sensor supports two wiring configurations depending on the selected output signal.

For voltage output applications, connect according to the 0-5V wiring diagram below.

For current loop applications, use the 0-20mA or 4-20mA wiring diagram below, which is suitable for long-distance signal transmission with minimal interference.