Zone 1 (0) - ABB TTR200 Operating Instructions Manual

Electrical connection
5.5.3

Zone 1 (0)

Transmitter design: II 2 (1) G EEx [ia] ib IIC T6
Zone 0 or Zone 1
Fig. 9
A Sensor
B Transmitter in housing with IP 20 level of
protection
For instruments in zone 1, the input for the repeater must be at minimum in [EEx ib] design.
The sensor must be used by the user in accordance with applicable ignition-protection
standards. It can be installed in zone 1 or zone 0.
20
Explosion-protection zone 1
ia
J
A B
C Power supply [EEx ib]
TTR200
Safety area
ib
C
A00209
OI/TTR200-EN