ABB 1SVR010201R0300 2-channel loop-powered isolator

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1. Product Description

The ABB 1SVR010201R0300 2-channel Loop-Powered Isolator is an industrial signal isolation and transmission module designed to isolate and regenerate analog current signals (4–20 mA), providing two independent isolated channels. It is loop-powered, requiring no external power supply, improving system noise immunity and signal stability. Widely used in process control systems, PLC, DCS, and instrumentation systems.

2. Technical Specifications

• Model: 1SVR010201R0300

• Type: 2-channel Loop-Powered Isolator

• Input Signal: 4–20 mA DC

• Output Signal: 4–20 mA DC (each channel independently isolated)

• Channels: 2

• Power Supply: Loop-powered, no external power required

• Load Capacity: Max 500 Ω

• Accuracy: ±0.1% FS

• Response Time: < 200 ms

• Isolation Voltage: ≥ 500 V AC (channel-to-channel, channel-to-ground)

• Operating Temperature: -20 ℃ to +60 ℃

• Storage Temperature: -40 ℃ to +85 ℃

• Mounting: DIN rail

• Protection Class: IP20

• Standards Compliance: IEC/EN 61326 (EMC), IEC/EN 61010 (Safety)

3. Advantages and Key Features

• High-precision signal transmission with ±0.1% FS accuracy.

• Dual-channel isolation for processing two independent signals simultaneously.

• Loop-powered operation simplifies installation and reduces wiring cost.

• Enhanced noise immunity eliminates ground loop interference for stable signals.

• Easy installation with DIN rail mounting and modular design.

• Industrial-grade design suitable for harsh environments with high temperature, humidity, and vibration.

4. Typical Applications

• Industrial process control systems (PLC/DCS)

• Sensor signal isolation and conversion (flow, pressure, temperature)

• 4–20 mA current loop signal transmission

• Instrumentation and data acquisition systems

• Factory automation and building automation control

5. Precautions

• Ensure signal loop power is disconnected before installation to avoid shock or device damage.

• Input/output signals should remain within specified range to prevent overrange and accuracy loss.

• Avoid exposure to strong electromagnetic interference or corrosive environments.

• Regularly inspect terminal connections for reliable contact.

• Match load resistance in loop-powered mode to ensure normal operation of the isolator.

The structure and details of the product：

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