Global site

ABB's website uses cookies. By staying here you are agreeing to our use of cookies. Learn more

Feeder protection REF611

REF611 is a dedicated feeder protection relay designed for the protection, control, measurement and supervision of utility substations and industrial power systems.

The feeder protection relay REF611 can be supplied either with directional or non-directional earth-fault protection. Directional earth-fault protection is mainly used in isolated neutral or compensated networks, whereas the non-directional earth fault protection is intended for directly or low-impedance earthed neutral networks.

REF611 can also be used for protection of ring-type and meshed distribution networks, as well as radial networks containing distributed power generation.

Why ABB?

  • Powerful and user-friendly web browser-based human machine interface (HMI) including input/output (I/O) matrix with visual selections
  • Simplified yet powerful functionality intended for most applications
  • Application-specific standard configurations resulting in a shorter relay setup and commissioning time 
  • Support for IEC 61850, edition 1 and 2, including binary GOOSE messaging
  • Pre-configured solutions for utility distribution and industrial applications
  • Smplified yet powerful functionality intended for most applications
  • Simplified yet powerful functionality intended for most applications
  • Simplified yet powerful functionality intended for most applications
  • Simplified yet powerful functionality intended for most applications

Are you looking for support or purchase information?

Loading documents

Related offering

Contact information

What would you like to do?

Submit your inquiry

Please select country from the list below
Country
Location
For this country please use ABB's partner contact details
Name
Company
E-Mail
Phone
Zip code
Your message
Cancel

Thank you for your inquiry and interest in ABB.
We will get back to you as soon as possible.

Back

An error occurred and your inquiry could not be sent.
Please try again later.

Back

Your local ABB Sales Team

Your local ABB's partner contact

Your local ABB Sales Team

Your local ABB's partner contact

Name
Address
 
Phone
 
Fax
 
E-Mail
 
 

Please select country from the list

Close

Submit your inquiry

Please select country from the list below
Country
Location
For this country please use ABB's partner contact details
Name
Company
E-Mail
Phone
Zip code
Your message
Cancel

Thank you for your inquiry and interest in ABB.
We will get back to you as soon as possible.

Back

An error occurred and your inquiry could not be sent.
Please try again later.

Back

Your local ABB Service Team

Your local ABB's partner contact

Your local ABB Service Team

Your local ABB's partner contact

Name
Address
 
Phone
 
Fax
 
E-Mail
 
 

Please select country from the list

Close

Submit your inquiry

Please select country from the list below
Country
Location
For this country please use ABB's partner contact details
Name
Company
E-Mail
Phone
Zip code
Your message
Cancel

Thank you for your inquiry and interest in ABB.
We will get back to you as soon as possible.

Back

An error occurred and your inquiry could not be sent.
Please try again later.

Back

Your local ABB Emergency Team

Your local ABB's partner contact

Your local ABB Emergency Team

Your local ABB's partner contact

Name
Address
 
Phone
 
Fax
 
E-Mail
 
 

Please select country from the list

Close

Authorized Value Providers

Close
Contact Service unavailable

ABB Web feeds

Customer events

  • Industry
  • Event