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Product Model: ABB SC520
Part Number: 3BSE003816R1
Brand: ABB
Series: SC Signal Conditioning & Converter Family
Product Type: Industrial Analog Signal Converter / Conditioner
Category: Process Signal Processing and Measurement Module
The ABB SC520 is a high‑performance analog signal converter and conditioner designed to accurately process electrical signals from industrial sensors and instrumentation, transforming them into standardized outputs suitable for control systems and data acquisition hardware.
The ABB SC520 3BSE003816R1 is a versatile analog signal conditioning module engineered for industrial automation and process measurement environments. It accepts raw electrical signals from field‑mounted sensors such as voltage sources, current loops, thermocouples, and resistance temperature detectors (RTDs). The SC520 conditions these inputs by filtering noise, linearizing responses, scaling the measured values, and isolating the electrical path before generating a clean, standardized analog output such as 4–20 mA or 0–10 V.
Signal conditioning ensures accurate data transmission to controllers, distributed control systems (DCS), programmable logic controllers (PLCs), recorders, and data acquisition systems. The SC520 also improves signal integrity by reducing electrical interference and eliminating ground loop effects—common challenges in industrial environments.
With a compact DIN‑rail mounting form factor and screw terminal connections, the SC520 is well suited for installation in industrial control cabinets and automation racks. Its robust design supports reliable, continuous operation in diverse industrial conditions.
| Parameter | Specification |
|---|---|
| Model | SC520 |
| Part Number | 3BSE003816R1 |
| Series | SC Signal Conditioning & Converter |
| Product Type | Analog Signal Converter / Conditioner |
| Supported Input Types | Voltage, Current, Thermocouple, RTD |
| Output Signal Types | 4–20 mA, 0–10 V Standard Outputs |
| Input Impedance | High Input Impedance (dependent on input type) |
| Output Load Capability | Suitable for PLC/DCS/Recorder Loads |
| Galvanic Isolation | Input‑Output isolation |
| Accuracy | ±0.1 % of full scale |
| Response Time | < 100 ms |
| Supply Voltage | 24 V DC |
| Power Consumption | < 5 W |
| Operating Temperature Range | –10 °C to +55 °C |
| Storage Temperature Range | –20 °C to +70 °C |
| Relative Humidity | 5 % to 95 % non‑condensing |
| Protection Rating | IP20 |
| Mounting Type | DIN‑Rail Mount |
| Connection Method | Screw Terminal |
| Dimensions (W × H × D) | 35 × 100 × 110 mm |
| Weight (kg) | Approx. 0.26 kg |
The SC520 signal converter is designed for use in industrial automation, instrumentation, and process control systems where accurate analog signal translation is essential.
Common application scenarios include:
• Conditioning and scaling temperature measurement signals from thermocouples and RTDs.
• Converting analog outputs from pressure, level, or flow transmitters for controller inputs.
• Preparation of filtered, isolated analog signals for distributed control systems (DCS), PLCs, and SCADA systems.
• Front‑end conditioning for data acquisition and recording systems.
• Machine automation requiring stable analog feedback for control logic.
• Environmental measurement systems requiring noise‑free signal outputs.
• Utilities and infrastructure automation needing reliable analog conversion.
• Systems requiring improved signal integrity within noisy electrical environments.
By converting raw sensor signals into standardized formats, the SC520 facilitates accurate process control and monitoring.
The SC520 ensures that raw analog inputs are accurately scaled and linearized, supporting precise process measurement.
Galvanic isolation between input and output reduces electrical noise and prevents ground loop issues, delivering stable signal quality.
The module supports multiple input types including voltage, current, thermocouple, and RTD signals, making it suitable for diverse sensors.
Standard outputs like 4–20 mA and 0–10 V ensure compatibility with controllers, recorders, and data acquisition systems.
Space‑efficient design allows the SC520 to fit easily into control cabinets and electrical racks.
Designed for continuous operation under harsh industrial temperature and humidity conditions, ensuring dependable performance.
Operates on a 24 V DC supply with a low power draw, consistent with industrial automation power standards.
Screw terminal connections facilitate straightforward wiring and field serviceability.
Below are five related analog signal conditioning or converter modules from the SC/SB series or with similar functionalities.
| Model | Supported Inputs | Output Type | Supply Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| SC500 | Voltage / Current | 4–20 mA | 24 V DC | 35×100×110 | 0.24 kg |
| SC510 | Voltage / Current / Thermocouple / RTD | 4–20 mA / 0–10 V | 24 V DC | 35×100×110 | 0.25 kg |
| SC520 | Voltage / Current / Thermocouple / RTD | 4–20 mA / 0–10 V | 24 V DC | 35×100×110 | 0.26 kg |
| SB171 | Voltage / Current / Thermocouple / RTD | 4–20 mA / 0–10 V | 24 V DC | 17.5×100×110 | 0.15 kg |
| SB821 | Voltage / Current / Thermocouple / RTD | 4–20 mA / 0–10 V | 24 V DC | 17.5×100×110 | 0.20 kg |
Below are five widely used automation hardware modules from ABB that typically work alongside signal conditioners like the SC520.
| Model | Device Type | Supply Voltage | Dimensions (mm) | Weight (kg) | Application |
|---|---|---|---|---|---|
| AC800M | Modular Controller | 24 V DC | 140×180×120 | 1.2 kg | Core process automation CPU |
| PM856 | Processor Module | 24 V DC | 120×150×90 | 0.9 kg | Logic control processor |
| CI870 | Communication Interface | 24 V DC | 120×150×90 | 0.8 kg | Fieldbus network interface |
| AI820 | Analog Input Module | 24 V DC | 120×150×80 | 0.6 kg | Multi‑channel analog input |
| DI820 | Digital Input Module | 24 V DC | 120×150×80 | 0.6 kg | Digital signal acquisition |
Q1: What is the primary function of the SC520?
A: The SC520 is designed to condition, scale, filter, and convert analog electrical signals from field sensors for use in automation systems.
Q2: What types of inputs does it support?
A: It supports voltage, current, thermocouple, and RTD inputs.
Q3: What standardized outputs does the SC520 provide?
A: It provides standard analog outputs such as 4–20 mA and 0–10 V.
Q4: What power supply does it require?
A: The SC520 operates on a 24 V DC industrial power supply.
Q5: How much does the SC520 weigh?
A: The approximate weight is 0.26 kg.
Q6: What are the physical dimensions of the unit?
A: Approximately 35 × 100 × 110 mm.
Q7: Where is this product typically installed?
A: It is usually mounted on DIN rails inside industrial control cabinets or racks.
Q8: Why is galvanic isolation important in signal conditioning?
A: Galvanic isolation improves signal quality by reducing electrical noise and eliminating ground loop interference.
Q9: In which industries is the SC520 commonly used?
A: It is used in manufacturing, utilities, environmental monitoring, and process control automation systems.
Q10: Can the SC520 operate continuously in industrial conditions?
A: Yes, it is engineered for stable, continuous operation within typical industrial temperature and humidity ranges.