ABB REX615 Power Protection Relay

ABB REX615 Power Protection Relay Overview

The ABB REX615 is a freely configurable, all-in-one protection and control relay engineered for power generation and distribution applications. As part of ABB's Relion® protection and control family, the REX615 advances the proven 615 and 620 series platform with enhanced modularity, scalability, and standardization for modern substations.

Key Features

• All-in-One Functionality: Combines protection, control, measurement, and communication in a single freely configurable device
• Wide Application Coverage: One device serves multiple power generation and distribution scenarios
• Fully Modular Hardware and Software: Adapts easily to changing protection and communication requirements
• Ready-Made Application Packages: Streamlines ordering, engineering, and commissioning workflows
• IEC 61850-Based Communication: Native digital substation interoperability for seamless multi-vendor integration
• Comprehensive Earth-Fault Protection: Unique portfolio ensuring optimal selectivity, sensitivity, and reliability across all network types
• Proven Heritage: Builds on ABB's Relion® family with over 1 million 615 and 620 series relays installed worldwide

Practical Applications & How It Works

The REX615 is engineered for flexible deployment across diverse power system environments:

• Power Generation Plants: Protects generators, transformers, and associated switchgear in utility and industrial generation facilities
• Distribution Substations: Provides feeder, transformer, and busbar protection in primary and secondary distribution networks
• Industrial Power Systems: Safeguards critical infrastructure in manufacturing, oil and gas, data centers, and process industries
• Grid Modernization Projects: Enables digital substation architectures through native IEC 61850 interoperability

Its modular architecture allows engineers to add or replace function modules, communication interfaces, and I/O boards without replacing the entire relay. Ready-made application packages simplify configuration, while freely programmable logic enables tailored protection schemes for site-specific requirements.

Why Source Through Spare Parts Map

Spare Parts Map is a global supplier of industrial spare parts, primarily serving customers across Europe. With over 20 years of experience in the industrial automation sector, we respond to inquiries quickly and ensure your products reach you without complications. When you request a quote for the ABB REX615, our team provides accurate lead times, current availability, and verified sourcing options to support your project timelines.

Frequently Asked Questions

Q: What is the ABB REX615 used for? A: The REX615 is an all-in-one protection and control relay used for power generation and distribution applications. It provides configurable protection, measurement, and communication functions in a single modular device suited to modern substations.

Q: Is the REX615 compatible with existing 615 and 620 series installations? A: Yes. The REX615 builds on ABB's 615 and 620 series platform and Relion® family, maintaining backward compatibility while introducing enhanced modularity and IEC 61850-based digital substation capabilities.

Q: Can the REX615 be reconfigured after installation? A: Yes. Its fully modular hardware and software design enables engineers to add, remove, or modify protection functions, communication protocols, and I/O modules to adapt to evolving operational requirements without replacing the unit.

Q: How do I request a quote for the ABB REX615? A: Contact Spare Parts Map through our website using the Request Quote option. Our team responds quickly with pricing, current availability, lead time, condition details, and worldwide delivery options.