3-Phase AC Current Transducer, 0-1A/5A to 20A

The SUCH 3-phase AC current transducer, also referred to as a 3-phase AC current power transducer, measures three-phase AC current with selectable input ranges of 0-1A, 0-5A, 0-10A, and 0-20A, and converts it into standard analog or RS485 signals for industrial monitoring and control systems. It offers accuracy class 0.2/0.5, a response time of ≤400ms, and isolation between the input, output, power supply, and shell for reliable signal transmission. With 1 to 4 configurable output channels and analog current, analog voltage, or RS485 outputs, it supports connection to PLC, DCS, and other automation systems. The ABS fire-resistant housing supports 35mm DIN rail or cabinet mounting, making it suitable for motor current monitoring, switchgear monitoring, energy management, and industrial power distribution.

Note: This current transducer measures three-phase AC current for monitoring and control of three-phase power systems.

Feature

• Selectable current input: 0-1A, 0-5A, 0-10A, 0-20A (customizable) — lets the input range be matched to the actual circuit being measured, instead of relying on one fixed-range device.
• Accuracy class 0.2/0.5 — provides two accuracy options for different current measurement requirements.
• ≤400ms response time — provides timely output when the measured current changes.
• Analog current, analog voltage, and RS485 output options — the same transducer can interface with PLC, DCS, or other systems through either an analog signal or a digital RS485 connection.
• 1 to 4 configurable output channels — a single unit can be configured with more than one output, useful when a system needs several signal outputs from the same current measurement point.
• Isolation across input, output, power supply, and shell — provides electrical isolation between the measured circuit, output signal, power supply, and housing.
• Wide auxiliary power compatibility: 12VDC, 24VDC, 110/220VAC, 110/220VDC, 2-wire circuit power supply — supports different control panel power configurations.
• Compact ABS fire-resistant housing with 35mm DIN rail or cabinet mounting — supports convenient installation in standard control cabinets.

Dimension (Unit:mm)

Wiring

Calibration Instructions

• PWR: Power indicator
• ZERO: Zero adjustment
• SPAN: Full-scale adjustment
• Zero calibration: Set the input signal to zero → Adjust ZERO → Output 0/4mA
• Full-scale calibration: Apply the rated input signal → Adjust SPAN → Output 20mA

Note: Calibration potentiometers are for instrument calibration only. Adjustment by unqualified personnel is prohibited.