Eaton XTOBP24BC1 Handbuch Seite 27

Contents
0 About This Manual..................................................................... 25
0.1 Target group................................................................................. 25
0.2 List of revisions ............................................................................ 25
0.3 Abbreviations and symbols .......................................................... 26
0.4 Writing conventions ..................................................................... 27
0.4.1 Hazard warnings of material damages ......................................... 27
0.4.2 Hazard warnings of personal injury .............................................. 27
0.4.3 Tips............................................................................................... 27
1 ZB12-.../XTOB...BC1 and ZB32-.../XTOB...CC1
overload relays ........................................................................... 28
1.1 Foreword...................................................................................... 28
1.2 Overview of the devices .............................................................. 29
1.3 Description of device ................................................................... 29
1.3.1 Overload protection with current transformer-operated
overload relay ............................................................................... 29
1.3.2 Current ranges of the overload relays .......................................... 30
1.3.3 Temperature compensation ......................................................... 31
1.3.4 Phase failure................................................................................. 31
1.3.5 Re-closing..................................................................................... 32
1.3.6 Test function ................................................................................ 32
1.4 Safety analysis ............................................................................. 33
2 Engineering................................................................................. 34
2.1 Overload monitoring of motors in the Ex e area .......................... 34
2.2 Adjusting the overload current protection.................................... 34
2.2.1 Short-circuit protection of the overload relays ............................. 35
2.3 Approvals ..................................................................................... 37
3 Installation .................................................................................. 38
3.1 Installation instructions ................................................................ 38
3.2 Fitting the device.......................................................................... 39
3.2.1 Mounting a sealable shroud ......................................................... 41
4 Using the device......................................................................... 43
4.1 Settings ........................................................................................ 43
4.1.1 Reset............................................................................................ 43
4.1.2 Test .............................................................................................. 43
ZB12-..., ZB32-... 11/16 MN03407004Z-DE/EN www.eaton.com
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