Contents1. Application..................................................................... 32. Available functions..........................................................83. Control......................................................................... 184. Differential protection.................................................... 215. Current protection........................................................ 216. Voltage protection........................................................ 237. Frequency protection....................................................248. Multipurpose protection................................................249. Secondary system supervision..................................... 2510. Scheme communication..............................................2511. Logic...........................................................................2612. Monitoring................................................................... 2813. Metering......................................................................3014. Human machine interface............................................3115. Basic IED functions..................................................... 3116. Station communication ...............................................3117. Remote communication.............................................. 3218. Hardware description.................................................. 3219. Connection diagrams.................................................. 3520. Technical data............................................................. 3621. Ordering for customized IED........................................9622. Ordering for pre-configured IED.................................10623. Ordering for Accessories........................................... 111DisclaimerThe information in this document is subject to change without notice and should not be construed as a commitment by ABB. ABB assumes no responsibility for anyerrors that may appear in this document. Drawings and diagrams are not binding.© Copyright 2016 ABB.All rights reserved.TrademarksABB and Relion are registered trademarks of the ABB Group. All other brand or product names mentioned in this document may be trademarks or registeredtrademarks of their respective holders.1MRK 511 361-BEN BBay control REC670 2.1 IECProduct version: 2.12 ABB