Schneider Electric PowerLogic™ A5V221 Arc Flash Protection Relay

The Schneider Electric PowerLogic™ A5V221 Arc Flash Protection Relay is developed to provide high-speed arc flash protection for low and medium-voltage switchgear used in industrial plants, utility substations and critical power systems. It continuously monitors arc flash sensors and current inputs to detect internal arc faults at an early stage, allowing the protection system to isolate the fault before it causes extensive damage.

Arc flash incidents can develop within milliseconds and release a significant amount of energy. The PowerLogic A5V221 is designed to identify the light generated by an arc fault together with current measurements, ensuring fast and dependable operation while reducing the possibility of unwanted tripping. Its quick response helps minimise equipment damage, reduce downtime and improve personnel safety.

The relay offers flexible sensor connectivity and can be integrated into both new electrical installations and existing switchgear panels. With its compact design and simple configuration, the A5V221 is well suited for facilities looking to strengthen arc flash protection without adding unnecessary complexity.

Specifications

• Manufacturer: Schneider Electric
• Product Family: PowerLogic™ A5 Arc Protection
• Model: A5V221
• Relay Type: Arc Flash Protection Relay
• Protection Application: Low and Medium-Voltage Switchgear
• Protection Method: Optical Arc Detection with Current Verification
• Arc Sensor Support: Multiple Optical Arc Sensors
• Current Inputs: Supported
• High-Speed Trip Outputs: Supported
• Digital Inputs and Outputs: Supported
• Event Recording: Supported
• Self-Diagnostics: Continuous Monitoring
• Human Machine Interface: LED Status Indicators and Push Buttons
• Mounting: Panel Mounting

Features

• High-speed arc flash detection for switchgear protection.
• Optical arc sensing with current verification for accurate fault detection.
• Rapid trip outputs help reduce arc flash energy.
• Supports multiple arc flash sensors for wider protection coverage.
• Continuous self-monitoring improves relay reliability.
• Event recording assists with fault investigation and maintenance.
• Compact design suitable for new installations and retrofit projects.
• Straightforward setup and commissioning.
• Clear LED indicators for relay status and fault conditions.
• Built for reliable operation in demanding industrial environments.

Applications

• Low-voltage switchboards
• Medium-voltage switchgear
• Utility substations
• Industrial power distribution systems
• Manufacturing facilities
• Mining and mineral processing plants
• Oil and gas installations
• Data centres
• Water and wastewater treatment plants
• Critical infrastructure

The Schneider Electric PowerLogic™ A5V221 Arc Flash Protection Relay helps improve the safety and reliability of electrical distribution systems by detecting arc faults quickly and initiating fast fault clearance. Its flexible installation options and dependable performance make it a practical solution for protecting modern switchgear installations.