1. Flameproof type

Code: d

Explosion prevention measures: isolate existing ignition sources

Applicable area: Zone 1 and Zone 2

2. Increased safety type

Code: e

Explosion prevention measures: try to prevent the generation of ignition sources

Applicable area: Zone 1 and Zone 2

3. Intrinsically safe type

Code: ia

Explosion prevention measures: limit the energy of the ignition source

Applicable areas: Zone 0, Zone 1, Zone 2

3. Intrinsically safe type

Code: ib

Explosion prevention measures: limit the energy of the ignition source

Applicable areas: Zone 0, Zone 1, Zone 2

4. Barotropic type

Code: p

Explosion prevention measures: isolate hazardous materials from ignition sources

Applicable area: Zone 1 and Zone 2

5. Oil filled type

Code: o

Explosion prevention measures: isolate hazardous materials from ignition sources

Applicable area: Zone 1 and Zone 2