Schneider Electric PowerLogic™ A5V120 Arc Flash Protection Relay

The Schneider Electric PowerLogic™ A5V120 Arc Flash Protection Relay is designed to provide fast and dependable arc flash protection for low and medium-voltage switchgear. It continuously monitors arc flash sensors and current signals to detect internal arc faults within milliseconds, helping reduce equipment damage and improve personnel safety.

Arc flash incidents can cause extensive damage if they are not cleared quickly. The PowerLogic A5V120 is designed to minimise fault clearing time by detecting both light and current generated during an arc fault and sending an immediate trip command to the associated circuit breaker. This rapid response helps limit the energy released during an arc flash event and reduces the impact on electrical equipment.

The relay is suitable for new installations as well as retrofit projects where additional arc flash protection is required. Its compact design, flexible sensor connections and straightforward configuration make it a practical solution for utilities, industrial facilities, commercial buildings and critical infrastructure.

Specifications

• Manufacturer: Schneider Electric
• Product Family: PowerLogic™ A5 Arc Protection
• Model: A5V120
• Relay Type: Arc Flash Protection Relay
• Protection Application: Low and Medium-Voltage Switchgear
• Protection Method: Arc Light Detection with Current Verification
• Arc Sensors: Optical Arc Flash Sensors
•  Current Inputs: Supported
• Trip Outputs: High-Speed Trip Contacts
• Digital Inputs and Outputs: Supported
• Event Recording: Supported
• Self-Diagnostics: Continuous Monitoring
• Human Machine Interface: Front LED Status Indicators and Push Buttons
• Mounting: Panel Mounting

Features

• High-speed arc flash detection for switchgear protection.
• Combines light detection with current measurement for dependable fault identification.
• Rapid trip output helps reduce arc flash energy.
• Supports multiple optical arc sensors.
• Continuous self-monitoring improves system reliability.
• Compact design for new and retrofit installations.
• Fast response helps minimise equipment damage.
• Easy configuration and commissioning.
• LED status indicators simplify operation and diagnostics.
• Designed for reliable operation in demanding industrial environments.

Applications

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

The Schneider Electric PowerLogic™ A5V120 Arc Flash Protection Relay provides an effective layer of protection for electrical distribution systems where fast arc fault detection is essential. Its combination of rapid response, reliable operation and simple integration helps improve equipment protection while supporting safer working conditions.