Siemens PSU300B Manual page 6

Table of contents
7 Safety, approvals, EMC ........................................................................................................................ 59
7.1 Safety ..................................................................................................................................... 59
7.2 Test voltage ............................................................................................................................ 60
7.3 Approvals ............................................................................................................................... 61
7.4 EMC ....................................................................................................................................... 61
8 Ambient conditions ................................................................................................................................ 63
9 Applications .......................................................................................................................................... 65
9.1 Parallel connection to increase power rating ......................................................................... 65
9.2 Parallel connection for redundancy ....................................................................................... 67
9.3 Series connection for increased voltage ................................................................................ 69
9.4 Overload protection in the 24 V output circuit ........................................................................ 70
9.5 Protection against short-time voltage dips ............................................................................. 71
9.6 Protecting against longer power failures ................................................................................ 72
9.7 Battery charging with SITOP PSU300B ................................................................................. 74
10 Environment ......................................................................................................................................... 77
11 Service & Support ................................................................................................................................. 79
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SITOP PSU300M/300B
Manual, 11.2014, C98130-A7574-A2-2-7629