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In explosive atmospheres, any ignition source (flame, electrical, mechanical spark, etc.) can cause an explosion. Therefore, electrical equipment must be treated as a potential ignition source, and all electrical devices on the crane must be explosion-proof.
Ex APPROVED EXPLOSION-PROOF PRODUCTS according to the following regulations, directives:
EUROPEAN DIRECTIVE 94/9/EC
International scheme : IECEx
Wire rope hoists Classifications
| Zone Classification | Equipment Category | Hazardous Area | ATEX Classification |
| Zone 1 | II 2 G | gas | Ex de IIB T4 vagy Ex de IIC T4 |
| Zone 2 | II 2 G | gas | Ex de nA IIB T3 (T4) or Ex nA de IIC T3 (T4) |
| Zone 21 | II 2 D | dust | Ex tD A21 IP66 T 120°C |
| Zone 22 | II 3 D | dust | Ex tD A22 IP66 T 120°C |
Chain hoists
| Zone Classification | Equipment Category | Hazardous Area | ATEX Classification |
| Zone 1 | II 2 G | gas | Ex de IIB T4 or Ex de IIC T4 |
| Zone 21 | II 2 D | dust | Ex tD A21 IP66 T 120 °C |
| Zone 22 | II 3 D | dust | Ex tD A22 IP66 T 120°C |
