ABB SAFW400 Drive Current Transducer

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1. Product Overview

The ABB SAFW400 Drive Current Transducer is an industrial-grade current sensor / transducer used in ABB drives and inverter systems. It accurately measures AC or DC current and converts it into an analog signal for the control system.
It is mainly used for current monitoring, overload protection, energy measurement, and closed-loop control, enhancing system safety, stability, and energy efficiency.

2. Main Technical Specifications (Typical)

• Model: SAFW400

• Product Type: Drive Current Transducer / Current Sensor

• Measurement Range: 0–400 A (selectable range)

• Output Type: Analog current output (4–20 mA or 0–10 V, depending on model)

• Accuracy: ±1% FS (full scale)

• Response Time: < 1 ms

• Operating Voltage: Supplied by control system power

• Frequency Range: DC or AC 50/60 Hz

• Insulation Rating: Industrial-grade electrical isolation

• Mounting: DIN rail or panel mount

• Operating Environment: -25 ℃ to +60 ℃, industrial grade

• System Compatibility: ABB drives, inverters, and automation control systems

3. Key Advantages and Features

1. High-Precision Current Measurement

   • Accurate AC/DC current monitoring

   • Supports closed-loop control and energy analysis

2. Fast Response and Reliability

   • Response time <1 ms, suitable for fast control

   • Industrial-grade design ensures long-term stable operation

3. Signal Output Compatibility

   • Analog output compatible with PLC, DCS, or drive control units

   • Easy integration and remote monitoring

4. Safety Isolation Design

   • Isolates sensor from control circuitry

   • Enhances operational safety

5. Easy Installation and Maintenance

   • DIN rail or panel mount, modular design

   • Simplifies maintenance, reduces downtime

4. Typical Applications

• ABB inverters and industrial drives

• Industrial motor control and speed regulation

• Energy monitoring and measurement systems

• Metallurgy, mining, and chemical industry equipment

• Automated production line current monitoring

• Fans, pumps, compressors, and conveyor equipment

5. Installation and Maintenance Notes

1. Verify Measurement Range

   • Ensure the current range matches system requirements

2. Power-Off Before Installation

   • Disconnect power before installing or removing the transducer

3. Proper Wiring

   • Secure wiring connections

   • Avoid routing sensor wires alongside high-voltage cables

4. Environmental Requirements

   • Avoid high temperature, humidity, and corrosive environments

   • Ensure proper ventilation

5. Periodic Inspection

   • Regularly check output signal and insulation

   • Maintain measurement accuracy and system safety