ABB TTF300 - Rotating the LCD Indicator; Electrical Connections for Installation; Electrical Connections; Electrical Connection Safety

Electrical connections
CI/TTF300-EN TTF300 EN - 27
4.6.1.2 ATEX - Zone 1 (0)
Transmitter design: II 2 (1) G Ex [ia] ib IIC T6
Zone 0 or Zone 1 Ex area Zone 1 Safe area
BC
ib
A00127
ia
J
A
D
ia
Fig. 18
A Sensor
B Transmitter TTF300
C Supply isolator [Ex ib]
D Interface for LCD indicator
The input for the supply isolator must have an [Ex ib] design.
As the user, it is your responsibility to ensure that the sensor instrumentation meets the
requirements of applicable explosion protection standards. The sensor can be installed in Zone
1 or Zone 0.
4.6.1.3 ATEX - Zone 1 (20)
Transmitter design: II 2 G (1D) Ex [iaD] ib IIC T6
Zone 0 or Zone 1 or
Zone 20
Ex area Zone 1 Safe area
ib
BC
ib
A00128
ia
J
A
D
ia
Fig. 19
A Sensor
B Transmitter TTF300
C Supply isolator [Ex ib]
D Interface for LCD indicator
The input for the supply isolator must have an [Ex ib] design.
As the user, it is your responsibility to ensure that the sensor instrumentation meets the
requirements of applicable explosion protection standards. The sensor can be installed in Zone
0, Zone 1, or Zone 20.