Guide to Hazardous Locations - prelectronics.com
IECEx DEK XDEKRA 11 ATEX 0244 XATEX / IECFM / type Temperature classPermissible surface temperatureGasIgnition temperatureAmmonia630oCMethane595oCHydro gen560oCPropane470oCEthylene425oCButane3 65oCAcetylene305oCCyclohexane259oCDiethy l ether170oCCarbon disulfide95oCConditions in potentially explosive areasConditions in Ex areasEx identification acc. to standard (example)IP protection codes (IEC 60529)First numeral Protection against solidsSecond numeral Protection against water0No protection0No protection1Greater than 50 mm1Vertical dripping2Greater than mm2Angled dripping (15 )3Greater than water4Greater than 1 mm4Splashing water5Dust protected5Water jets6Dust tight6Powerful water jets7Immersion up to 1 m8Immersion beyond 1 mNEMA types (NEMA 250)TypeApplicationProtection againstEquivalent guideline IP rating1IndoorGeneral purpose102IndoorDripping water, falling dust113, 3R, 3SOutdoorRain, snow, windblown dust544, 4XIndoor / outdoorHose-directed water, corrosion (X)
IECEx DEK 11.0084 X DEKRA 11 ATEX 0244 X ATEX / IEC FM / UL www.prelectronics.com Protection type Temperature class Permissible surface temperature
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