ABB REX 521 User Manual

4
1MRS 751107-MUM
Protection Relay
Operator’s Manual
REX 521
5. Test mode ............................................................................... 27
5.1. I/O test ........................................................................................27
5.2. IRF test .......................................................................................27
5.3. Function block test ......................................................................28
6. Index ........................................................................................ 29

ABB REX 521 Specifications

General

Brand	ABB
Model	REX 521
Category	Other
Language	English