Product Overview
The REQ650 is a high-performance numerical voltage protection and control relay belonging to the ABB Relion 650 series. Specifically engineered for medium- and high-voltage power networks, the REQ650 functions as a primary Intelligent Electronic Device (IED) to ensure grid stability and asset safety. It provides comprehensive monitoring against overvoltage, undervoltage, and residual overvoltage conditions, making it a critical component for substation automation. With its modular architecture and native support for IEC 61850, the REQ650 facilitates seamless digital integration, offering precise measurement and rapid fault isolation to safeguard transformers, feeders, and sensitive industrial equipment.
Detailed Technical Specifications
-
Manufacturer: ABB
-
Model Designation: REQ650
-
Product Series: Relion 650 Series
-
Device Type: Voltage Protection and Control Relay
-
Protection Logic: Overvoltage (3-phase), undervoltage (3-phase), residual overvoltage, and frequency-based protection
-
Rated Current Input: 1 A or 5 A (Configurable)
-
Rated Voltage Input: Standard secondary voltage up to 110 V AC
-
Frequency Range: 50 / 60 Hz (Adaptive tracking)
-
Auxiliary Power Supply: Universal wide-range 24–250 V DC or 48–240 V AC
-
Binary I/O Configuration: Multiple programmable digital input and output channels for status feedback and trip logic
-
Communication Protocols: IEC 61850 Edition 1 & 2, IEC 60870-5-103, Modbus RTU/TCP, DNP3
-
Time Synchronization: Precision timing via SNTP and IRIG-B support
-
Human Machine Interface (HMI): Local LCD display with navigational keypad and programmable LEDs
-
Operating Temperature: -25°C to +70°C
-
Storage Temperature: -40°C to +85°C
-
Dimensions (WxHxD): 190 mm x 170 mm x 200 mm
-
Weight: 3.0 kg
-
Compliance Standards: IEC 60255 series for power system protection
What's clients say about us
Excellent Emergency Support!
Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
Mark Thompson
Maintenance Manager, USAReliable Source for New Spares
Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
Robert Hoffmann
Engineering Lead, GermanyTop-tier Service and Quality
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.
Lucas Müller
Operations Director, GermanyRelated Products
ABB 560PSR00 1KGT026500R0001 | RTU560 Power Supply
$99.00
$199.00
61336125F ABB NINT-68C | Fiber-Optic VFD Interface
$99.00
$199.00
ABB SF810INT-LOS-UV-T-L | SIL-Rated Industrial Flame Monitor
$99.00
$199.00
Brand New ABB FAU800 | Industrial Flame Signal Analyzer
$99.00
$199.00
3ADT306311P2103 ABB SDCS-FEX-2 | DCS500 DCS600 Exciter
$99.00
$199.00
5SHY3545L0020 ABB | Asymmetric IGCT with 5SXE05-0154 Driver
$99.00
$199.00
RET316*4 ABB | Digital Protection for 2-Winding & 3-Winding
$99.00
$199.00
Brand New ABB DO810 | S800 I/O Process Automation Module
$99.00
$199.00
3BSE013208R1 ABB TB820V2 | 10Mbps S800 I/O Interface
$99.00
$199.00
1KHL160003R0001 ABB REF630 | Relion 630 Series Protection
$99.00
$199.00
ABB DSSR122 Power Supply Unit | 40A Continuous Output 5VDC
$99.00
$199.00
16-bit Thermocouple Input Board | ABB 3BSE001449R1 TC520
$99.00
$199.00
SB510 ABB Advant OCS S100 I/O Backplane Module Brand New
$99.00
$199.00
SR511 ABB Advant OCS Controller Regulator Brand New
$99.00
$199.00
ABB DSDO115 Symphony Plus Digital Output Spare Part
$99.00
$199.00
DSRF182 ABB 2500V Isolated Communication Board New
$99.00
$199.00
ABB DSBB175 Bus Interface Module 32-Channel Rack Support
$99.00
$199.00
OCS Power Supply Module Brand New | DSSB145 ABB Advant
$99.00
$199.00
New ABB DSBC173A Communication Interface S100 I/O Bus
$99.00
$199.00
New ABB DSDO131 Digital Output Unit for Symphony Plus
$99.00
$199.00
ABB DSDI110 Digital Input Board for Symphony Plus
$99.00
$199.00
DSDO110 ABB Advant OCS S100 I/O Board Brand New Original
$99.00
$199.00
70EA01A-E ABB Industrial Data Acquisition Module Brand New
$99.00
$199.00
Brand New ABB UR600IR/BGT Infrared Flame Scanner for Boilers
$99.00
$199.00
88VK01A-E ABB GJR2312200R1010 Brand New Output Module
$99.00
$199.00
3BSE028602R1 ABB DO880 16-Channel 24V Output Block
$99.00
$199.00
ABB HIEE400923R0001 Modbus Communication Interface
$99.00
$199.00
3BSE035684R1 ABB CI527A Advant Controller 400 Interface
$99.00
$199.00
ABB 1SAP224100R0001 AC500 PLC PROFIBUS DP Module
$99.00
$199.00
CI542-DP ABB S500 Interface Module 8DI 8DO 8DC
$99.00
$199.00
New Original ABB CI546 3BSE012545R1 Interface Card
$99.00
$199.00
CI570 ABB 3BSE001440R1 Communication Module 1Mbps
$99.00
$199.00
ABB CI871A S800 I/O PROFINET Interface Brand New
$99.00
$199.00
CI871K01 ABB Industrial Ethernet Communication Interface
$99.00
$199.00
DI821 ABB S800 I/O 32-Channel Isolated Input Module
$99.00
$199.00
ABB DI825 3BSE036373R1 125V DC Digital Input New in Box
$99.00
$199.00
Duplex Latching Fiber Optic RCU Link | ABB TK811V150
$99.00
$199.00
ABB TK821F Freelance Dual Channel Communication Cable
$99.00
$199.00
3BSC950202R1 ABB TK821V020 Battery Cable Worldwide Shipping
$99.00
$199.00
High-Current 50A Connection Cable | ABB TK850V007 0.7m
$99.00
$199.00
ABB TK851 3BSC950192R1 Industrial CEX-Bus Interface
$99.00
$199.00
3BSC950262R1 ABB TK851V010 BC810 Interconnection Cable 1m
$99.00
$199.00
ABB IMCIS22 Bailey DCS Communication Board | 6644130F1
$99.00
$199.00
Infi-Net Communication Interface | Brand New ABB IIMCIS02
$99.00
$199.00
ABB IMBLK01 Bailey DCS Shielded Face Plate | Switzerland
$99.00
$199.00
100% Brand New ABB IEMMU01 | Industrial Module Mounting
$99.00
$199.00
Guide
Translation missing: en.general.search.loading