ABB SS822 3BSC610042R1 Power Voting Unit

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Product Model

ABB SS822 3BSC610042R1 Power Voting Unit

Product Overview

The ABB SS822 is a high-reliability power voting unit used in power automation and protection systems. It performs logic comparison and voting of multiple input signals, improving system redundancy and reliability. The SS822 features fast response times, making it suitable for critical industrial applications where continuous operation and fault tolerance are required.

Technical Specifications (Typical)

• Model: SS822

• Type: Power Voting Unit

• Input Type: Digital signals or dry contact inputs

• Number of Input Channels: Up to 3 independent channels

• Output Type: Relay output / logic signal output

• Response Time: < 20 ms

• Supply Voltage: 24 V DC

• Maximum Load Current: 2 A per channel (relay output)

• Communication Interface: Optional PROFIBUS / Modbus (depending on configuration)

• Operating Temperature: –20°C to +60°C

• Mounting: DIN rail or panel mount

• LED Status Indicators: Power, input, and output status

• Protection Rating: IP20

Features and Advantages

1. High Reliability Design: Ensures redundant system voting in critical industrial control applications.

2. Fast Response: Low-latency voting logic meets real-time monitoring requirements.

3. Modular Installation: Compact design allows easy integration in control cabinets or automation systems.

4. Visual Status Indicators: LED lights display input and output states for easy debugging and maintenance.

5. Multi-Signal Processing: Supports multiple input signals to improve system fault tolerance.

6. Industrial-Grade Stability: Strong EMI immunity suitable for power, metallurgy, and industrial automation environments.

Application Areas

• Signal voting and redundancy control in power automation systems

• Redundant input decision-making in protection and control systems

• Industrial process automation with redundant control

• Power generation plants, substations, and critical infrastructure monitoring

• High-reliability production lines and process control systems

Precautions

1. Disconnect power before installation to prevent electric shock or module damage.

2. Follow wiring diagrams and terminal labeling strictly to avoid short circuits or signal errors.

3. Keep the working environment dry and ventilated, avoiding high temperatures, humidity, and corrosive gases.

4. Periodically check input/output terminals and relay status to ensure system reliability.

5. Operate the module only within rated voltage and load limits.

6. Maintenance and configuration should be performed by qualified personnel.

The structure and details of the product：

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