The SC900A400 is an overcurrent relay manufactured by Schneider Electric. This relay is designed to protect electrical equipment and systems from damage caused by excessive current. It provides reliable and accurate overcurrent protection in a variety of industrial and commercial applications.

Applications:

• Motor Protection: Used to protect electric motors from overload and short-circuit conditions.
• Transformer Protection: Employed to protect transformers from excessive current due to faults or overloads.
• Feeder Protection: Integrated into power distribution systems to protect feeders from overcurrent conditions.
• Generator Protection: Used to protect generators from overload and short-circuit faults.
• Industrial Control Systems: Found in industrial control systems to protect equipment from damage due to overcurrent.

Features:

• Adjustable Current Settings: Allows for customization of the overcurrent protection threshold to match specific application requirements.
• Time-Delay Settings: Provides adjustable time-delay settings to prevent nuisance tripping due to transient overcurrents.
• Test Function: Includes a test function to verify proper operation of the relay.
• Visual Indication: Equipped with LED indicators to display the status of the relay (e.g., normal operation, tripped).
• Compact Design: Offers a compact design for easy integration into electrical panels and control systems.

Benefits:

• Equipment Protection: Protects electrical equipment from damage due to overcurrent conditions.
• System Reliability: Improves the reliability of electrical systems by preventing equipment failures.
• Reduced Downtime: Minimizes downtime by quickly detecting and isolating overcurrent faults.
• Easy Installation: Simple to install and configure, reducing installation time and costs.
• Cost-Effective Solution: Provides a cost-effective solution for overcurrent protection in a variety of applications.

Technical Specifications:

• Current Range: Varies depending on the specific model
• Time Delay: Adjustable, typically from milliseconds to seconds
• Operating Voltage: Varies depending on the specific model
• Operating Temperature: -20°C to +70°C
• Mounting: DIN rail or panel mounting

The SC900A400 overcurrent relay is a reliable and versatile solution for protecting electrical equipment and systems from overcurrent conditions. Its adjustable settings, test function, and compact design make it an ideal choice for a wide range of industrial and commercial applications.