Eaton EMT6-K - English

EMT6 10/16 MN03407006Z-DE/EN www.eaton.com 33
Contents
0 About this manual ..................................................................... 35
0.1 Target group................................................................................. 35
0.2 List of revisions............................................................................ 35
0.3 Abbreviations and symbols .......................................................... 36
0.3.1 Hazard warnings of material damages......................................... 36
0.3.2 Hazard warnings of personal injury .............................................. 36
0.3.3 Tips............................................................................................... 36
1 EMT6 Thermistor Overload Relays for Machine Protection .. 37
1.1 Foreword...................................................................................... 37
1.2 System overview ......................................................................... 38
1.3 Description of device ................................................................... 38
1.3.1 Direct temperature monitoring using thermistors........................ 38
1.3.2 Thermistor protection................................................................... 39
1.3.3 Device variants............................................................................. 40
1.3.4 Reset after triggering ................................................................... 41
1.3.5 Zero-voltage safety....................................................................... 41
1.3.6 Short-circuit monitoring of the thermistor circuit ......................... 42
1.4 Technical safety data.................................................................... 43
2 Projection.................................................................................... 44
2.1 Overload monitoring of motors in the Ex e area .......................... 44
2.2 Approvals ..................................................................................... 45
3 Installation .................................................................................. 46
3.1 Installation instructions ................................................................ 46
3.2 Fitting the device.......................................................................... 47
3.3 Testing the safety function .......................................................... 48
3.4 Connection terminals ................................................................... 49
3.4.1 Terminal capacity ......................................................................... 51
3.5 Control Voltage............................................................................. 51
4 Using the device......................................................................... 52
4.1 Automatic reset............................................................................ 52
4.2 Hand-reset.................................................................................... 54
4.3 Reclosing interlock and short-circuit protection ........................... 56
4.4 Test/Reset.................................................................................... 56
4.5 Device fault .................................................................................. 57