Technical Specifications
Product Overview
Advanced Arc Flash Protection
The AFR-3S is a high-performance arc flash relay engineered for medium and high-voltage power distribution systems, including switchgear, transformers, and generators. Utilizing a dual-criteria detection principle—combining arc light detection with overcurrent sensing—it ensures rapid protection action and high reliability. This device is designed to minimize damage to critical electrical infrastructure by quickly isolating faults.
Technical Specifications
Max Switching Current
10 A
AC Current
12 A
DC Current
Max Switching Voltage
277 Vac
AC Voltage
300 Vdc
DC Voltage
- Auxiliary Power Range
- 85-265 Vac/dc
- Protection Range (Ip)
- 0.06 ~ 10 In
Input and Output
Configurable Binary Inputs
- CB ON
- CB OFF
- Block
- Relay Outputs
- 6 x 5A @ 250V
- Arc Detection Channels
- 3 channels
Communication and Connectivity
- Supported Interfaces
- IRIG-B485-1 A/B485-2 A/BCT Input
