Schneider Electric PowerLogic™ A3-F12P Arc Flash Protection Relay

The Schneider Electric PowerLogic™ A3-F12P Arc Flash Protection Relay is designed to provide fast and scalable arc flash protection for low and medium-voltage switchgear. It continuously monitors optical arc sensors to detect arc faults and initiates rapid tripping, helping reduce equipment damage and improve personnel safety during electrical faults.

The A3-F12P supports up to twelve optical light sensors, making it suitable for larger switchgear assemblies and applications where multiple protection zones are required. It can operate as a standalone protection unit or be connected with other PowerLogic A3 devices through the system bus to build a larger arc flash protection system as the installation expands.

With a wide auxiliary power supply range, flexible mounting options and simple rotary switch configuration, the PowerLogic A3-F12P is suitable for both new electrical installations and retrofit projects. Its compact design and dependable performance make it a practical choice for utilities, industrial plants, commercial facilities and critical power applications.

Specifications

• Manufacturer: Schneider Electric
• Product Family: PowerLogic™ A3
• Model: A3-F12P
• Relay Type: Arc Flash Protection Relay
• Protection Application: Low and Medium-Voltage Switchgear
• Protection Technology: Optical Arc Flash Detection
• Arc Sensor Capacity: Up to 12 Optical Arc Sensors
• Protection Zones: Multi-Zone Detection
• System Expansion: Bus Connection with Other PowerLogic A3 Devices
• Auxiliary Supply Voltage: 24 VAC to 240 VAC or 24 VDC to 240 VDC
• High-Speed Trip Outputs: 1
• Relay Output: 1
• Configuration: Rotary Switches
• Mounting Options: DIN Rail or Flush Panel (with Mounting Frame REL52903)
• Human Machine Interface: LED Status Indicators

Features

• Fast arc flash detection for low and medium-voltage switchgear.
• Supports up to twelve optical arc sensors.
• Multi-zone protection for larger switchgear installations.
• Expandable through PowerLogic A3 bus communication.
• High-speed trip output for rapid fault isolation.
• Wide auxiliary voltage range for installation flexibility.
• Rotary switch configuration allows quick setup.
• DIN rail and flush panel mounting options.
• Compact design for new installations and retrofit projects.
• Reliable performance in demanding industrial and utility environments.

Applications

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

The Schneider Electric PowerLogic™ A3-F12P Arc Flash Protection Relay provides dependable arc flash protection for electrical systems where wider protection coverage is required. Its ability to support multiple optical sensors, expand into larger protection systems and respond rapidly to arc faults makes it well suited for modern power distribution installations.