EMT6
10/16 MN03407006Z-DE/EN
www.eaton.com
33
Contents
About this manual ..................................................................... 35
Target group................................................................................. 35
List of revisions ............................................................................ 35
Abbreviations and symbols .......................................................... 36
Hazard warnings of material damages ......................................... 36
Hazard warnings of personal injury .............................................. 36
EMT6 Thermistor Overload Relays for Machine Protection .. 37
Foreword...................................................................................... 37
System overview ......................................................................... 38
Description of device ................................................................... 38
Direct temperature monitoring using thermistors........................ 38
Thermistor protection................................................................... 39
Device variants............................................................................. 40
Reset after triggering ................................................................... 41
Zero-voltage safety....................................................................... 41
Short-circuit monitoring of the thermistor circuit ......................... 42
Technical safety data.................................................................... 43
Projection.................................................................................... 44
Overload monitoring of motors in the Ex e area .......................... 44
Approvals ..................................................................................... 45
Installation .................................................................................. 46
Installation instructions ................................................................ 46
Fitting the device.......................................................................... 47
Testing the safety function .......................................................... 48
Connection terminals ................................................................... 49
Terminal capacity ......................................................................... 51
Control Voltage............................................................................. 51
Using the device......................................................................... 52
Automatic reset............................................................................ 52
Hand-reset.................................................................................... 54
Reclosing interlock and short-circuit protection ........................... 56
Test/Reset.................................................................................... 56
Device fault .................................................................................. 57