Electrical
connection
CI/TTH300-EN
TTH300
EN - 19
4.3.4 Zone 1 (20)
Transmitter design: II 2G (1D) EEx [iaD] ib IIC T6
Zone 0, Zone 1,
Zone 20
Explosion-protection zone 1
Safety area
ib
B
C
ib
A00147
ia
J
A
D
i
a
Fig. 14
A Sensor
B Transmitter in housing with IP20 level of
protection
C Power supply [EEx ib]
D HMI interface for LCD displays (activation
is possible as an option only when
ordering)
For instruments in zone 1, the transmitter must be installed in its own housing with IP20 level of
protection. The input for the power supply must be at a 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 0, zone 1 or zone 20.
Summary of Contents for TTH300 Series
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