Siemens Argus 7SR21 - 1.1 Current Transformer Circuits; 1.2 External Resistors; 1.3 Fibre Optic Communication; 1.5 Disposal

7SR21 & 7SR22 Argus Installation Guide
Section 5: Connection/Wiring/Diagrams
5.1 Wiring Diagram: 7SR21 OC/EF Relay
Figure 5.1-1 Connection Diagram for 7SR21 Relay
©2010 Siemens Protection Devices Limited Chapter 5 Page 12 of 22