SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
563 
SIRIUS 3RA21/22 load feeders 
6
6.1  Standards 
Fuseless load feeders are manufactured and tested in accordance with IEC 60947 – Part 1 
and Part 2. 
Types of coordination 
Types of coordination are important selection criteria for fuseless load feeders. They are 
defined in the appendix, under . 
Approvals/Test reports 
Extensive approvals and test certificates are available for 3RA2 pre-assembled complete 
devices. All approvals and test certificates for the individual devices involved apply if load 
feeders are being self-assembled. 
Reference 
The standards from Catalog LV 1 "Low-Voltage Controls and Distribution SIRIUS - 
SENTRON - SIVACON" in the appendix always apply. You will find extracts from the most 
important standards relating to the innovations of the SIRIUS modular system in the chapter 
titled System Overview, under Standards (Page 23).