3. Commissioning, operation
3.6 Mounting examples
Model TR21-A
■
associated electrical
equipment
Non-hazardous
area
Hazardous area
Model TR21-B
■
associated electrical
equipment
Non-hazardous
area
Hazardous area
WIKA additional information model TR21 (Ex i)
Intrinsically safe
supply or suitable
barrier
Intrinsically safe
supply or suitable
barrier
Intrinsically safe
supply or suitable
barrier
Non-hazardous
area
Hazardous area
Hazardous area
Intrinsically safe
supply or suitable
barrier
Non-hazardous
area
Hazardous area
Hazardous area
EN
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