REA107-AA RLY-REA107-AAA Arc Protection Module, China REA107-AA RLY-REA107-AAA Arc Protection Module Manufacturers, Suppliers, Factory

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	REA107-AA RLY-REA107-AAA
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Parameter	Value
Model	REA107-AA RLY-REA107-AAA
Product Type	Arc Protection Module
Dimensions	20.3 x 18.5 x 3 cm
Weight	0.96 kg
Signal Contacts	Type: Light 1–4, Light 5–8
Maximum System Voltage	250 V DC/AC
Continuous Carry Current	5 A
Make & Carry (0.5 s)	10 A
Make & Carry (3 s)	8 A
DC Breaking Capacity	1 A / 0.25 A / 0.15 A (48/110/220 V DC, L/R ≤ 40 ms)
Power Consumption (quiescent / operating)	1.7 W / ~2.7 W
Max Extension Units per Port	5 (via REA 101 port)
Lens Sensor Operating Temperature	-40 °C to +100 °C
Lens Sensor Max Temperature (+1h)	+140 °C
Minimum Fiber Bending Radius	100 mm
Connection Cable Length (master-slave)	Max 40 m
Operating Time (from light)	< 1.0 ms
Service Temperature Range	-10 °C to +55 °C
Transport/Storage Temperature	-40 °C to +70 °C
Protection Class	IP20 (IEC 60529)
Weight (module)	1.0 kg
Dielectric Test	2 kV, 50 Hz, 1 min (IEC 60255-5)
Impulse Voltage Test	5 kV, 1.2/50 µs, 0.5 J
Insulation Resistance	>100 MΩ @ 500 V DC
EMC 1 MHz Burst (common mode)	2.5 kV
EMC 1 MHz Burst (differential mode)	1.0 kV
Electrostatic Discharge (ESD)	6 kV contact discharge (Class III)
Fast Transient Disturbance	4 kV
Surge Immunity (line to earth)	2 kV
Surge Immunity (line to line)	1 kV

Description

REA107-AA RLY-REA107-AAA is an extension unit designed to be used together with the arc protection relay REA 101. The function of the unit is to detect light and to provide the REA 101 relay with information about this. The use of the extension unit allows the protection area to be extended and the object to be divided into smaller areas.

Applications

Petrochemical plants: 24/7 monitoring of substations containing corrosive gases.

Steel and iron smelting plants: Protection of high-voltage switchgear rooms against phase-to-phase short-circuit arcing caused by metal dust.

Shipbuilding plants: Protection of marine switchgear within confined spaces to prevent arcing accidents at sea.

Rail transit plants: Protection of low-voltage/medium-voltage switchgear in traction substations.

Large data centers: Protection of precision switchgear (RPP) to ensure zero power interruption.

Features

Eight lens type sensors for arc detection

Two signal relays

Two RJ-45 ports for the connection to a REA 101 relay and/or other extension units

Self-supervision unit monitoring operating voltages

LED indicators for each sensor

Instructions for commissioning

The following procedure should be followed when the unit is commissioned:

1.Switchgroup SG1

Default setting:SG1 00000000

Set the switches as required by the application. See sections "Function of LEDs and switches” in this manual and “Application examples” of the REA 101 Operator's manual

2. Potentiometer “Light Ref. Level Adj."

Default setting: middle position. If the SG1/2 switch is set for automatic backlight compensation, the setting of the potentiometer does not have to be changed.

FAQ

Q1: What do the 8 lights on the REA107-AA RLY-REA107-AAA represent?
A: Each light matches one lens sensor. Green means normal; red indicates arc detection or sensor fault.

Q2: Can the AAA coated version of the REA107-AA RLY-REA107-AAA be used in normal factories?
A: Yes. Its coated design improves moisture and dust resistance, extending service life.

Q3: How is the REA107-AA RLY-REA107-AAA connected to the REA101 main module?
A: It connects directly through a dedicated fiber or electrical bus for monitoring and trip coordination.

Q4: Will the REA107-AA RLY-REA107-AAA falsely trip if the sensor fiber breaks?
A: No. It performs self-diagnostics and outputs a service alarm when fiber damage is detected.

Q5: Where should the lens sensor of the REA107-AA RLY-REA107-AAA be installed?
A: Install it near high-risk arc areas such as cable joints, breaker contacts, or busbar connections.