Identification Of Electrical Equipment According To Directive 94/9/Ec; Th01Ex; Th101-Ex; Zone 0: Category G1 Equipment Can Be Used; Zone 1: Category G1 And G2 Equipment Can Be Used - ABB TH01-Ex Manual Del Usuario

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Identification of electrical equipment according to directive 94/9/EC

TH01Ex; TH101-Ex

Zone classification
Explosion hazardous areas are classified into zones, according to how frequently explosive atmospheres occur.
This classification into zones is based on IEC/EN 60079 Part 10: "Area classification for explosion hazardous
areas". The following zone distinctions are defined:

Zone 0: Category G1 equipment can be used

Areas where explosive atmospheres composed of a mixture of air and combustible substances in gas, vapour
or nebular form are constantly, usually or frequently present (guideline: more than 1000 hours per year).

Zone 1: Category G1 and G2 equipment can be used

Areas where it can be expected that during normal operation, an explosive atmospheres composed of a mixture
of air and combustible substances in gas, vapour or nebular form arise (guideline: between 10 and 1000 hours
per year).

Zone 2: Category G1, G2 and G3 equipment can be used

Areas where it can be expected that during normal operation, an explosive atmospheres composed of a mixture
of air and combustible substances in gas, vapour or nebular form arise, but only infrequently and for a short time
(guideline: between 0.1 and 10 hours per year).
Safety instruction
DANGER
Before installing the equipment, the operator is obliged to check its suitability for the explosion zone according
to the type plate.
3KDE115000R4899 Safety instructions for electrical apparatus certified for use in explosion hazardous areas
Identification according to directive 94/9/EC:
- CE declaration of conformity
- Label for preventing explosions
- Device group II
- Danger: Category 2 (for the transmitter)
Category 1 (for the sensor)
- For explosive atmospheres
composed of mixtures of air, gas,
mist and vapour
Ignition protection class label:
- Electrical equipment protected according
to European standard
- Ignition protection class
Intrinsic safety category
measuring circuit
Intrinsic safety category
power supply circuit
- Explosion class
- Temperature class
EEx [ia] ib IIC T4/5/6
"ia":
"ib":
II 2 (1) G
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