MTL fieldbus terminators

Certifications and compliances

FCS-MBT Model:

• Ex II 1 G EEx ia IIC T4
• Ex II 3 G Ex nA IIC T4 Gc
• Class I, Division 1, Groups A, B, C and D, (Temp Code T4) Ex ia IIC T4
• IS/I/1/ABCD/T4 Ta=70ºC
• I/0/AEx ia IIC T4 Ta=70ºC
• NI/I/2/ABCD/T4 Ta=70ºC
• I / 2 / IIC / T4 Ta=70ºC

F100 Model:

• Ex II 3 G
• Ex nA IIC T4 Gc
• Class I, Division 2, Groups A, B, C and D (Temp Code T4); Ex nA IIC T4
• NI/I/2/ABCD/T4 Ta=70ºC
• I / 2 / IIC / T4 Ta=70ºC

FCS-MBT-XE Model:

• Ex II 2 G Ex eb mb IIC T4 Gb
• Ex eb mb IIC T4 Gb

Environmental ratings (all models):

• Operating Temperature: –45ºC to +70ºC

• Terminators are clearly marked with a large ‘T’ making them easy to identify in the field
• Provides some differential and common-mode (cable shield) over voltage protection
• The ground connection on the filedbus terminators are used to shunt any surge currents that may get on the cable shield to a local ground in the junction box.  Although the normal practice is to ground the cable shield in the control room, this additional ground connection will not cause ground loops.
• In the event of an overvoltage on the cable shield, a gas discharge tube fires and shunts this unwanted current to ground