ABB offers the most extensive range of electronic timers, measuring and monitoring relays, interface relays and power supplies in the industry – allowing you to source your critical components from one global supplier.

Electromechanical and static relays have fixed wiring and the setting is manual. Numeric relays, on the other hand, are programmable relays where the characteristics and behavior can be programmed. Most numerical relays are also multifunctional.

On ABB Relays-Online you can access all the digital tools and services for ABB's Digital Substation Products, such as protection relays, communication devices, and software. The globally accessible platform allows you to explore and learn about our product portfolio, select and purchase the most suitable product for your needs and track your ...

CO relays, a complete coordinated line, assure accurate and reliable primary or backup protection against phase or ground faults. They provide the back-bone of any protective relaying system, from generator to load.

The Sentry safety relays are powerful and easy to use safety relays, suitable for all common types of safety applications. The Sentry series contains basic models for simple applications and easy output expansion, as well as highly flexible models with extremely accurate timer functions.

ABB electromechanical relays have protected the power system for more than 100 years, and with the proper inspection, maintenance, and testing techniques, these relays can guard the power system for many more years.

Chapter 2 - Measuring and monitoring relays. Choose among a large range of products to ensure reliable protection, save cost and avoid unplanned downtime of your processes and equipment.

The ABB interface relays and optocouplers portfolio offers a variety of electromechanical and solid relays which ensure galvanic isolation, reliable voltage conversion and circuit multiplication in the control systems and circuitry.

REX615 is a freely configurable all-in-one protection and control relay for power generation and distribution applications. A wide application coverage combined with a fully modular and scalable hardware and software ensures maximum flexibility and optimal cost-effectivity throughout the relay life cycle – from tailoring to adapting to ...

ABB offers a large number of feeder protection relays. There are several multi-functional protection relays for different application ranges. Among the protection relays there are some used for general feeder protection (protection against over-current) and as back-up protection.