Flameproof Protection Zone 1 - ABB HART TTF350 Commissioning Instructions

Electrical connection
4.5.8

Flameproof protection Zone 1

Housing design: ATEX II 2G EEx d IIC T6
Transmitter design: No ignition protection
Fig. 17
A Sensor
B TTF350 transmitter in Ex d housing
C Power supply
To achieve the flameproof protection, proper mounting of a specially certified cable gland that
complies with the standards and relevant Ex designation on the cover sheet of the PTB 99
ATEX 1144 certificate is required
26 - EN
Explosion-protection zone 1
J
A
E
B
D Fuse, 32 mA
E HMI interface for LCD display
TTF350
Safety area
D
C
A00132
CI/TTF350-X1