ABB REA101 Arc Protection Relay Module – 26–60VDC / 110–250VDC

Specifications

  • Manufacturer: ABB

  • Product No.: REA101

  • Condition： 10 Items in Stock

  • Product Type: Arc Protection Relay Module

  • Product Origin: Sweden

  • Payment:T/T, Western Union

  • Weight: 1500g

  • Shipping port: Xiamen

  • Warranty: 12 months

Product details

Description

ABB REA101 – Arc Fault Protection Main Module

Product Overview

The ABB REA101 is the main module of the ABB REA Arc Protection System, designed to provide fast and reliable detection of arc faults in medium- and low-voltage switchgear. With a trip response time of less than 2.5 ms, the REA101 enhances operational safety, protects critical equipment, and minimizes downtime after fault events. This module can work independently or be expanded with REA103 and REA105 units for scalable switchgear protection.

⚙️ Technical Specifications

Parameter Specification
Model / Order Number REA101 / REA101-CAA
Application Arc fault detection for medium- and low-voltage switchgear
Power Supply Voltage 110–240 V AC / 110–250 V DC
Operating Voltage Variant 26–60 V DC (specific model option)
Detection Method Fiber-optic arc sensors + optional overcurrent logic
Response Time ≤ 2.5 ms (arc detection to trip)
Trip Outputs 2 × High-speed IGBT outputs (HSO1, HSO2); 1 × Relay output (TRIP3)
Communication Interface RS-485 (Modbus RTU), binary inputs/outputs
Expansion Capability Supports up to 5 × REA103/REA105 expansion units
Mounting Type DIN rail or panel mounting
Protection Class IP30 (indoor cabinet installation)
Operating Temperature –25°C to +70°C
Certifications CE, UL, IEC 60255, IEC 61508 SIL2

 

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